{"product_id":"high-purity-titanium-wire-4n-research","title":"High-Purity Titanium Wire 99.99% (4N) Research Grade","description":"\u003cstyle\u003e\n.rk-4n{max-width:1100px;margin:0 auto;padding:0 16px;color:#273036;font-size:16px;line-height:1.75;font-family:-apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,Helvetica,Arial,sans-serif;-webkit-text-size-adjust:100%}\n.rk-4n *{box-sizing:border-box}\n.rk-4n p{margin:0 0 14px}\n.rk-4n h2{font-size:clamp(22px,3vw,30px);line-height:1.3;color:#005969;margin:44px 0 16px;padding-bottom:10px;border-bottom:3px solid #00AAFF;font-weight:800}\n.rk-4n h3{font-size:clamp(18px,2.2vw,23px);line-height:1.35;color:#005969;margin:30px 0 12px;padding-left:11px;border-left:4px solid #00AAFF;font-weight:700}\n.rk-4n h4{font-size:clamp(16px,1.8vw,19px);line-height:1.4;color:#114954;margin:22px 0 8px;font-weight:700}\n.rk-4n h5{font-size:clamp(15px,1.6vw,17px);line-height:1.4;color:#0a6b7a;margin:18px 0 6px;font-weight:700}\n.rk-4n h6{font-size:clamp(14px,1.5vw,15px);line-height:1.45;color:#33424a;margin:14px 0 6px;font-weight:700;letter-spacing:.2px}\n.rk-4n ul,.rk-4n ol{margin:0 0 16px;padding-left:22px}\n.rk-4n li{margin:0 0 7px}\n.rk-4n a{color:#005969;text-decoration:underline}\n.rk-4n .rk-lead{font-size:clamp(16px,1.9vw,18px);color:#33424a}\n.rk-4n .rk-toc{background:#f2f9fb;border:1px solid #d4e9ee;border-radius:12px;padding:18px 20px;margin:8px 0 10px;columns:2;column-gap:34px}\n.rk-4n .rk-toc .rk-toct{font-weight:800;color:#005969;margin:0 0 10px;column-span:all;font-size:17px}\n.rk-4n .rk-toc ul{list-style:none;margin:0;padding:0}\n.rk-4n .rk-toc li{margin:0 0 7px;break-inside:avoid}\n.rk-4n .rk-toc a{text-decoration:none;color:#114954;font-weight:600}\n.rk-4n .rk-toc a::before{content:\"\\25B8 \\0020\";color:#00AAFF}\n.rk-4n .rk-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin:16px 0}\n.rk-4n .rk-card{border:1px solid #dcebef;border-top:3px solid #00AAFF;border-radius:10px;padding:16px;background:#fff}\n.rk-4n .rk-card h4{margin-top:0;color:#005969}\n.rk-4n .rk-card p:last-child,.rk-4n .rk-card ul:last-child{margin-bottom:0}\n.rk-4n .rk-check{list-style:none;padding-left:4px}\n.rk-4n .rk-check li{position:relative;padding-left:24px}\n.rk-4n .rk-check li::before{content:\"\\2713\";position:absolute;left:0;top:0;color:#00AAFF;font-weight:800}\n.rk-4n .rk-tablewrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:14px 0 18px;border:1px solid #dcebef;border-radius:10px}\n.rk-4n table.rk-table{width:100%;border-collapse:collapse;min-width:480px;background:#fff}\n.rk-4n .rk-table th{background:#005969;color:#fff;text-align:left;padding:11px 13px;font-weight:700;font-size:15px}\n.rk-4n .rk-table td{border-bottom:1px solid #e3eef0;padding:10px 13px;vertical-align:top}\n.rk-4n .rk-table tbody tr:nth-child(even){background:#f6fbfc}\n.rk-4n .rk-note{background:#eef8fc;border-left:4px solid #005969;border-radius:8px;padding:12px 16px;margin:16px 0;color:#234}\n.rk-4n details.rk-faq{border:1px solid #dcebef;border-radius:10px;margin:10px 0;background:#fff;overflow:hidden}\n.rk-4n details.rk-faq summary{cursor:pointer;padding:14px 16px;font-weight:700;color:#005969;list-style:marker;outline:none}\n.rk-4n details.rk-faq summary::-webkit-details-marker{color:#00AAFF}\n.rk-4n details.rk-faq[open]{background:#fbfdfe}\n.rk-4n details.rk-faq p{padding:0 16px 14px;margin:0}\n.rk-4n .rk-muted{color:#5a6a72;font-size:14px}\n@media(max-width:768px){\n.rk-4n{font-size:15px;padding:0 12px}\n.rk-4n .rk-toc{columns:1}\n.rk-4n .rk-grid{grid-template-columns:1fr}\n.rk-4n h2{margin:34px 0 12px}\n}\n@media(max-width:480px){\n.rk-4n{padding:0 8px}\n.rk-4n .rk-table th,.rk-4n .rk-table td{padding:9px 10px}\n.rk-4n .rk-card{padding:14px}\n.rk-4n ul,.rk-4n ol{padding-left:19px}\n}\n\u003c\/style\u003e\n\n\u003cdiv class=\"rk-4n\"\u003e\n\n\u003cnav class=\"rk-toc\" aria-label=\"On this page\"\u003e\n\u003cp class=\"rk-toct\"\u003eOn this page\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"#rk4n-what\"\u003eWhat 4N high-purity wire is\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#rk4n-props\"\u003eProperties for research\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#rk4n-forms\"\u003eDiameters, forms \u0026amp; packaging\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#rk4n-made\"\u003eHow it is produced\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#rk4n-apps\"\u003eResearch applications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#rk4n-choose\"\u003eHow to choose\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#rk4n-faq\"\u003eFrequently asked questions\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/nav\u003e\n\n\u003ch2 id=\"rk4n-what\"\u003e4N High-Purity Titanium Wire, 99.99% for Research and Laboratories\u003c\/h2\u003e\n\u003cp class=\"rk-lead\"\u003e\u003cstrong\u003e4N high-purity titanium wire\u003c\/strong\u003e is elemental titanium wire drawn to a purity of \u003cstrong\u003e99.99%\u003c\/strong\u003e — \"four nines,\" written 4N — on a \u003cstrong\u003etrace metals basis\u003c\/strong\u003e, for scientific research, analytical work, thin-film deposition, electrochemistry, and laboratory fabrication. Unlike engineering titanium that is specified by an industrial grade and judged mainly on mechanical strength, research-grade 4N wire is specified by its chemistry: total metallic impurities are held to extremely low levels so that trace contaminants cannot interfere with sensitive experiments. It is supplied in fine diameters, small spools and reels, and short cut lengths, sealed clean for the bench.\u003c\/p\u003e\n\u003cp\u003eElemental titanium carries \u003cstrong\u003eCAS number 7440-32-6\u003c\/strong\u003e and chemical formula \u003cstrong\u003eTi\u003c\/strong\u003e. This page explains what 4N and \"trace metals basis\" mean, how purity levels compare, the diameters and packaging used in labs, how clean high-purity wire is produced, the research applications it supports, and how to select and handle it for reproducible results.\u003c\/p\u003e\n\n\u003ch3\u003eWhat \"4N\" and \"Trace Metals Basis\" Mean\u003c\/h3\u003e\n\u003cp\u003eThe N notation counts the nines in the purity figure: 4N means four nines, i.e. 99.99% titanium, leaving at most 0.01% total trace metallic impurity. \u003cstrong\u003e\"Trace metals basis\"\u003c\/strong\u003e is the standard research-chemistry convention used by laboratory material suppliers: the stated purity is calculated against metallic trace elements, so researchers can compare materials on a consistent basis across suppliers and publications.\u003c\/p\u003e\n\n\u003ch3\u003ePurity Levels at a Glance\u003c\/h3\u003e\n\u003cdiv class=\"rk-tablewrap\"\u003e\n\u003ctable class=\"rk-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eDesignation\u003c\/th\u003e\n\u003cth\u003ePurity\u003c\/th\u003e\n\u003cth\u003eTypical research use\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2N6\u003c\/td\u003e\n\u003ctd\u003e99.6%\u003c\/td\u003e\n\u003ctd\u003eGeneral lab tooling, non-critical apparatus, teaching labs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3N\u003c\/td\u003e\n\u003ctd\u003e99.9%\u003c\/td\u003e\n\u003ctd\u003eRoutine electrochemistry, general deposition, pilot experiments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e4N (this product)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e99.99%\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThin-film and evaporation work, analytical research, most trace-sensitive studies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5N\u003c\/td\u003e\n\u003ctd\u003e99.999%\u003c\/td\u003e\n\u003ctd\u003eUltra-trace analysis, frontier materials and surface-science work\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eWhy Researchers Choose 4N Over Industrial Titanium Wire\u003c\/h3\u003e\n\u003cp\u003eIndustrial commercially pure titanium is defined by engineering grades that deliberately allow controlled oxygen, iron, and interstitial content to tune strength and formability; its purity typically sits well below the 4N threshold. That residual chemistry is irrelevant for a bracket or a fastener but can dominate an analytical result. 4N wire is refined specifically to minimize those elements, giving a clean, consistent starting material.\u003c\/p\u003e\n\u003ch4\u003eWhy Low Trace Metals Matter for Sensitive Experiments\u003c\/h4\u003e\n\u003cp\u003eIn spectroscopy, electrochemistry, and deposited films, even parts-per-million levels of iron, nickel, chromium, or alkali metals produce background peaks, unintended redox behavior, off-stoichiometry, or contaminated coatings. A 99.99% starting wire keeps that background predictable and small, so measured signals reflect the experiment rather than the source material.\u003c\/p\u003e\n\u003ch5\u003eReproducibility Across Long-Running Studies\u003c\/h5\u003e\n\u003ch6\u003eRecording Material Details in the Methods Section\u003c\/h6\u003e\n\u003cp\u003eBecause 4N wire is defined by a fixed purity figure, CAS number, form, and diameter, a researcher can record those exact specifications in a paper's methods section, and a colleague months or years later can repeat the work against the same documented chemistry — a level of consistency that ordinary, unspecified industrial wire cannot provide.\u003c\/p\u003e\n\n\u003ch2 id=\"rk4n-props\"\u003eProperties Relevant to Research\u003c\/h2\u003e\n\u003cp\u003eThe reference values below support experimental design and describe typical behavior for 4N titanium wire.\u003c\/p\u003e\n\u003cdiv class=\"rk-tablewrap\"\u003e\n\u003ctable class=\"rk-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eValue \/ behavior\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePurity (assay)\u003c\/td\u003e\n\u003ctd\u003e99.99% (4N), trace metals basis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCAS number\u003c\/td\u003e\n\u003ctd\u003e7440-32-6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFormula \/ molar mass\u003c\/td\u003e\n\u003ctd\u003eTi \/ 47.87 g\/mol\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDensity\u003c\/td\u003e\n\u003ctd\u003eApprox. 4.5 g\/cm³\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMelting point\u003c\/td\u003e\n\u003ctd\u003eApprox. 1,660–1,668 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoiling point\u003c\/td\u003e\n\u003ctd\u003eApprox. 3,287 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical resistivity\u003c\/td\u003e\n\u003ctd\u003eApprox. 42 µΩ·cm at 20 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnetic response\u003c\/td\u003e\n\u003ctd\u003eNon-magnetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurface behavior\u003c\/td\u003e\n\u003ctd\u003eSelf-forming, stable passive oxide film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable temper\u003c\/td\u003e\n\u003ctd\u003eAs drawn or annealed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eChemical Purity and Controlled Trace Impurities\u003c\/h3\u003e\n\u003cp\u003e4N wire is refined to keep both metallic trace elements and gaseous interstitial elements (oxygen, nitrogen, hydrogen) low, with tightly controlled impurity levels so the source material adds minimal background to an experiment.\u003c\/p\u003e\n\n\u003ch3\u003ePhysical and Thermal Behavior\u003c\/h3\u003e\n\u003cp\u003eTitanium's high melting point, low density, non-magnetic character, and stable oxide make 4N wire useful as an evaporation source, an electrode, and a high-temperature structural lead. Its passive surface also tolerates a wide range of electrolytes, which is why pure titanium is a common electrode and current-collector material in electrochemical cells.\u003c\/p\u003e\n\n\u003ch3\u003eSurface Condition: As-Drawn vs. Annealed\u003c\/h3\u003e\n\u003cdiv class=\"rk-grid\"\u003e\n\u003cdiv class=\"rk-card\"\u003e\n\u003ch4\u003eAs drawn\u003c\/h4\u003eA firmer, work-hardened wire with a bright drawn surface; holds shape for leads, jigs, and controlled winding where stiffness helps placement.\u003c\/div\u003e\n\u003cdiv class=\"rk-card\"\u003e\n\u003ch4\u003eAnnealed\u003c\/h4\u003eA softer, more ductile wire after clean vacuum or protective-atmosphere annealing; easier to bend, wrap, and form into filaments, coils, and delicate electrodes.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch2 id=\"rk4n-forms\"\u003eDiameters, Forms and Laboratory Packaging\u003c\/h2\u003e\n\u003cp\u003eResearch work is defined by small, precise amounts rather than bulk tonnage, so 4N titanium wire is offered in fine diameters, compact forms, and short, orderable lengths.\u003c\/p\u003e\n\n\u003ch3\u003eFine Diameters for Laboratory Work\u003c\/h3\u003e\n\u003cp\u003eFine and ultra-fine cross-sections dominate laboratory demand, from evaporation filaments around a fraction of a millimeter to sturdy one-millimeter electrode stock. The same material can be drawn across a range of diameters for a multi-stage study.\u003c\/p\u003e\n\u003ch4\u003eCommon Research Diameters and What They Suit\u003c\/h4\u003e\n\u003cdiv class=\"rk-tablewrap\"\u003e\n\u003ctable class=\"rk-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eDiameter range\u003c\/th\u003e\n\u003cth\u003eCommon laboratory use\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e0.125–0.127 mm\u003c\/td\u003e\n\u003ctd\u003eThermal evaporation filaments, micro-electrodes, fine winding and probes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0.25 mm\u003c\/td\u003e\n\u003ctd\u003eEvaporation and heater wire, small electrodes, sol-gel \/ microextraction substrates\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0.5 mm\u003c\/td\u003e\n\u003ctd\u003eElectrochemical electrodes, contact leads, coil and spiral winding\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1.0 mm\u003c\/td\u003e\n\u003ctd\u003eCounter electrodes, structural leads, apparatus and fixture wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp class=\"rk-muted\"\u003eDiameters finer or heavier than the standard research range can be drawn to order; select the cross-section that matches the technique and the available fixture.\u003c\/p\u003e\n\n\u003ch3\u003eReels, Spools and Straight Lengths\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReels \/ small spools\u003c\/strong\u003e — continuous, tangle-free wire for evaporation winding, coilers, and repeated small experiments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStraight cut lengths\u003c\/strong\u003e — pre-cut segments for electrodes, probes, and apparatus that must be ready to mount with no further handling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLonger continuous length\u003c\/strong\u003e — larger spools for groups and core facilities that consume wire regularly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSmall Quantities and Cut-to-Length Service\u003c\/h3\u003e\n\u003cp\u003eLaboratory orders are accepted in small quantities — by the centimeter, inch, meter, or by the gram, including short 100 mm segments and 1 m \/ 5 m \/ 10 m reels — so a single experiment or thesis project can be supplied without industrial minimums. Lengths and spool sizes can be cut and wound to match a specific rig.\u003c\/p\u003e\n\u003ch4\u003eSealed, Clean Packaging\u003c\/h4\u003e\n\u003cp\u003eEach reel or length is degreased, handled to avoid metal-to-metal contamination, and sealed in clean, labeled protective packaging that preserves the bright high-purity surface until it reaches the bench. Labels carry the diameter, form, and purity for quick identification.\u003c\/p\u003e\n\n\u003ch2 id=\"rk4n-made\"\u003eHow 4N Titanium Wire Is Produced\u003c\/h2\u003e\n\u003cp\u003eReaching and preserving four-nines purity demands a cleaner route than ordinary wire drawing, because contamination introduced at any stage cannot be \"drawn out\" later.\u003c\/p\u003e\n\n\u003ch3\u003eHigh-Purity Melt and Impurity Control\u003c\/h3\u003e\n\u003cp\u003eProduction starts from high-purity feedstock refined under vacuum melting, often with multiple remelts that drive down volatile and metallic impurities and tightly control oxygen and nitrogen. The aim is a clean, homogeneous base before any forming begins — the step that separates 4N research material from engineering titanium.\u003c\/p\u003e\n\n\u003ch3\u003eMulti-Pass Drawing to Fine Diameters\u003c\/h3\u003e\n\u003cp\u003eThe purified stock is reduced through a sequence of drawing dies toward laboratory diameters, using dedicated, contamination-controlled tooling so that iron or other tooling metals are not embedded in a nominally pure surface. Intermediate vacuum annealing keeps the wire workable as it is drawn finer.\u003c\/p\u003e\n\u003ch4\u003eMaintaining Purity Throughout Drawing\u003c\/h4\u003e\n\u003cp\u003eBecause a single contaminated die or shared line can adulterate an ultra-pure wire, fine research wire is drawn under segregated, clean conditions and handled to keep the surface free of steel contact, lubricant residue, and shop-floor dust.\u003c\/p\u003e\n\n\u003ch3\u003eCleaning, Annealing and Clean Packaging\u003c\/h3\u003e\n\u003cp\u003eFinal processing combines thorough degreasing, clean vacuum or protective-atmosphere annealing to set the as-drawn or annealed temper, and a last clean before sealed packaging. In-process impurity checks confirm the material stays within the 4N limit before it is wound, cut, and sealed for delivery.\u003c\/p\u003e\n\n\u003ch2 id=\"rk4n-apps\"\u003eResearch Applications of 4N Titanium Wire\u003c\/h2\u003e\n\u003cdiv class=\"rk-grid\"\u003e\n\u003cdiv class=\"rk-card\"\u003e\n\u003ch4\u003eThin-film \u0026amp; evaporation\u003c\/h4\u003eHigh-purity wire is wound into thermal evaporation filaments and source holders for PVD and thin-film deposition; 4N purity keeps evaporated films free of source-derived contaminants.\u003c\/div\u003e\n\u003cdiv class=\"rk-card\"\u003e\n\u003ch4\u003eElectrochemistry\u003c\/h4\u003eUsed as working, counter, and auxiliary electrodes, current collectors, and contact leads in cells where a clean, corrosion-resistant, non-magnetic conductor is required.\u003c\/div\u003e\n\u003cdiv class=\"rk-card\"\u003e\n\u003ch4\u003eCorrosion \u0026amp; materials science\u003c\/h4\u003eA clean pure-titanium reference for passivation, oxide-film, anodizing, and corrosion studies where known starting chemistry is essential.\u003c\/div\u003e\n\u003cdiv class=\"rk-card\"\u003e\n\u003ch4\u003eAnalytical \u0026amp; reference work\u003c\/h4\u003eA low-background material for spectroscopy and trace analysis, method development, and comparative research.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eThin-Film Deposition and Thermal Evaporation\u003c\/h3\u003e\n\u003ch4\u003eWhy Source Purity Sets Film Quality\u003c\/h4\u003e\n\u003cp\u003eIn thermal evaporation and PVD, every impurity in the source wire is available to transfer into the growing film, altering composition, resistivity, optical behavior, or adhesion. A 99.99% source minimizes that carry-over, yielding cleaner, more repeatable coatings — the main reason deposition labs specify 4N rather than engineering-grade wire.\u003c\/p\u003e\n\n\u003ch3\u003eElectrochemistry and Electrodes\u003c\/h3\u003e\n\u003cp\u003e4N titanium wire serves as counter and auxiliary electrodes, structural electrode supports, and current collectors in battery, corrosion, and sensor research. Its passive oxide and electrolyte tolerance give stable behavior, while the low trace-metal content removes an uncontrolled variable from the cell.\u003c\/p\u003e\n\n\u003ch3\u003eSpectroscopy, Standards and Reference Work\u003c\/h3\u003e\n\u003cp\u003eKnown-purity titanium provides a clean baseline for analytical methods, comparative studies, and calibration-style work where the sample's own impurities must not be confused with the signal under investigation.\u003c\/p\u003e\n\n\u003ch3\u003eSpecialized and Emerging Research\u003c\/h3\u003e\n\u003cp\u003eThe wire also appears as a substrate for sol-gel and microextraction fibers, in biomedical and implant-material R\u0026amp;D, low-temperature and non-magnetic setups, anodizing-color studies, and custom experimental apparatus where a light, inert, heat-resistant conductor is needed.\u003c\/p\u003e\n\n\u003ch3\u003ePrototyping and Laboratory Tooling\u003c\/h3\u003e\n\u003cp\u003eBeyond bench science, small lengths support research prototypes, leads, supports, jigs, and fixtures in clean or corrosive environments, with cut-to-length delivery that matches a one-off build rather than a production run.\u003c\/p\u003e\n\n\u003ch2 id=\"rk4n-choose\"\u003eHow to Choose 4N Titanium Wire\u003c\/h2\u003e\n\u003ch3\u003eStep 1 — Confirm the Purity Level\u003c\/h3\u003e\n\u003cp\u003eChoose 4N when trace metallic background would affect films, electrochemistry, or analysis; routine teaching or mechanical lab tooling may be served by 3N, while ultra-trace and surface-science work can require 5N.\u003c\/p\u003e\n\u003ch4\u003eWhen to Move Up to 5N\u003c\/h4\u003e\n\u003cp\u003eIf an experiment resolves impurities at sub-parts-per-million level, or if results are intended for publication against the lowest achievable background, stepping from 4N to 5N removes the source material as a limiting factor.\u003c\/p\u003e\n\u003ch3\u003eStep 2 — Match Diameter to the Technique\u003c\/h3\u003e\n\u003cp\u003eUse the finest cross-sections for evaporation filaments and micro-electrodes, mid sizes for general electrodes and winding, and heavier wire for counter electrodes and structural leads.\u003c\/p\u003e\n\u003ch3\u003eStep 3 — Choose Form, Temper and Length\u003c\/h3\u003e\n\u003cp\u003ePick reels or spools for continuous winding and repeated runs, straight lengths for ready-to-mount electrodes, as-drawn wire for stiffness, and annealed wire for tight forming — then set the length or spool size to the rig.\u003c\/p\u003e\n\u003ch3\u003eStep 4 — Match Quantity and Packaging to the Project\u003c\/h3\u003e\n\u003cp\u003eChoose short cut lengths or a small reel for a single experiment, and larger spools for ongoing group use; select sealed clean packaging when the wire will be stored between runs or used in clean and deposition environments.\u003c\/p\u003e\n\n\u003ch2\u003eHandling 4N Wire in the Laboratory\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWear clean gloves and use titanium, ceramic, or dedicated cutters; avoid steel tools that can embed iron into a high-purity surface.\u003c\/li\u003e\n\u003cli\u003eDegrease with a suitable solvent such as acetone or ethanol and allow to dry under clean conditions before evaporation or electrode use.\u003c\/li\u003e\n\u003cli\u003eKeep unused wire in its sealed packaging, away from grinding dust and other metal stock.\u003c\/li\u003e\n\u003cli\u003eSeparate open lengths by purity and diameter so the correct wire is used for each experiment.\u003c\/li\u003e\n\u003cli\u003eAvoid dragging fine wire across sharp edges, where nicks could cause breaks during winding or evaporation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 id=\"rk4n-faq\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails class=\"rk-faq\" open\u003e\n\u003csummary\u003eWhat does 4N \/ 99.99% mean?\u003c\/summary\u003e\n\u003cp\u003e4N means \"four nines,\" a purity of 99.99% titanium, with total trace metallic impurity no greater than 0.01%. It sits one step above 3N (99.9%) and one below 5N (99.999%) in research purity levels.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rk-faq\"\u003e\n\u003csummary\u003eWhat does \"trace metals basis\" mean?\u003c\/summary\u003e\n\u003cp\u003eIt is the standard research-chemistry way of stating purity: the purity is expressed against metallic trace elements, so researchers can compare laboratory materials from different suppliers on one consistent basis.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rk-faq\"\u003e\n\u003csummary\u003eIs 4N research wire different from industrial pure titanium wire?\u003c\/summary\u003e\n\u003cp\u003eYes. Industrial titanium is specified by engineering grades that allow controlled oxygen and iron for mechanical behavior, while 4N wire is specified by chemistry and refined to far lower trace impurities for reproducible, trace-sensitive research.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rk-faq\"\u003e\n\u003csummary\u003eWhich diameter suits evaporation or electrode work?\u003c\/summary\u003e\n\u003cp\u003eFine 0.125–0.25 mm wire is typical for thermal evaporation filaments and micro-electrodes; 0.5 mm suits general electrodes and winding; around 1.0 mm is used for counter electrodes and structural leads.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rk-faq\"\u003e\n\u003csummary\u003eHow is the wire kept clean before it reaches the bench?\u003c\/summary\u003e\n\u003cp\u003eIt is degreased after drawing, handled to avoid steel contact and dust, and sealed in clean labeled packaging that protects the bright high-purity surface; a final solvent wipe before use is still recommended for deposition and electrode work.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rk-faq\"\u003e\n\u003csummary\u003eCan I order a very small quantity or a short cut length?\u003c\/summary\u003e\n\u003cp\u003eYes. Research quantities are supplied by the centimeter, inch, meter, or gram — including short segments and small 1 m \/ 5 m reels — with cut-to-length and custom spool sizes for specific apparatus, without industrial minimums.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rk-faq\"\u003e\n\u003csummary\u003eWhat is the CAS number for titanium wire?\u003c\/summary\u003e\n\u003cp\u003eElemental titanium, including high-purity wire, carries CAS number 7440-32-6 and chemical formula Ti.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rk-faq\"\u003e\n\u003csummary\u003eAs-drawn or annealed — which should I choose?\u003c\/summary\u003e\n\u003cp\u003eChoose as-drawn for a stiffer wire that holds position in leads and jigs; choose annealed for a softer, more ductile wire that bends and wraps easily into filaments, coils, and delicate electrodes.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rk-faq\"\u003e\n\u003csummary\u003eIs higher-than-4N purity available?\u003c\/summary\u003e\n\u003cp\u003eYes — 5N (99.999%) wire can be supplied for ultra-trace and surface-science research where even the 4N background must be minimized; select it when results are published against the lowest achievable impurity level.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003e4N high-purity titanium wire provides 99.99% elemental titanium on a trace metals basis (CAS 7440-32-6), refined and drawn under contamination-controlled conditions for research rather than for engineering load. Offered in fine diameters, small reels and spools, and short cut lengths, in as-drawn or annealed condition, and sealed in clean protective packaging, it gives thin-film and evaporation work, electrochemistry, corrosion and analytical studies, and specialized laboratory apparatus a clean, reproducible, well-characterized starting material. Defining purity, diameter, form, temper, length, and packaging up front ensures the wire that reaches the bench matches the experiment it supports.\u003c\/p\u003e\n\n\u003c\/div\u003e\n","brand":"RapidKeen","offers":[{"title":"0.05 mm (0.002 in) \/ 1 Meter (39.4 in)","offer_id":43768925618235,"sku":null,"price":18.0,"currency_code":"USD","in_stock":true},{"title":"0.1 mm (0.004 in) \/ 1 Meter (39.4 in)","offer_id":43768868864059,"sku":null,"price":12.0,"currency_code":"USD","in_stock":true},{"title":"0.15 mm (0.006 in) \/ 1 Meter (39.4 in)","offer_id":43768925651003,"sku":null,"price":12.0,"currency_code":"USD","in_stock":true},{"title":"0.2 mm (0.008 in) \/ 1 Meter (39.4 in)","offer_id":43768868929595,"sku":null,"price":12.0,"currency_code":"USD","in_stock":true},{"title":"0.3 mm (0.012 in) \/ 1 Meter (39.4 in)","offer_id":43768868995131,"sku":null,"price":12.0,"currency_code":"USD","in_stock":true},{"title":"0.4 mm (0.016 in) \/ 1 Meter (39.4 in)","offer_id":43768869060667,"sku":null,"price":12.0,"currency_code":"USD","in_stock":true},{"title":"0.5 mm (0.020 in) \/ 1 Meter (39.4 in)","offer_id":43768869126203,"sku":null,"price":12.0,"currency_code":"USD","in_stock":true},{"title":"0.6 mm (0.024 in) \/ 1 Meter (39.4 in)","offer_id":43768869191739,"sku":null,"price":14.0,"currency_code":"USD","in_stock":true},{"title":"0.8 mm (0.031 in) \/ 1 Meter (39.4 in)","offer_id":43768869257275,"sku":null,"price":14.0,"currency_code":"USD","in_stock":true},{"title":"1.0 mm (0.039 in) \/ 1 Meter (39.4 in)","offer_id":43768869322811,"sku":null,"price":16.0,"currency_code":"USD","in_stock":true},{"title":"1.2 mm (0.047 in) \/ 1 Meter (39.4 in)","offer_id":43768869388347,"sku":null,"price":18.0,"currency_code":"USD","in_stock":true},{"title":"1.5 mm (0.059 in) \/ 1 Meter (39.4 in)","offer_id":43768869453883,"sku":null,"price":21.0,"currency_code":"USD","in_stock":true},{"title":"2.0 mm (0.079 in) \/ 1 Meter (39.4 in)","offer_id":43768869584955,"sku":null,"price":26.0,"currency_code":"USD","in_stock":true},{"title":"3.0 mm (0.18 in) \/ 1 Meter (39.4 in)","offer_id":43768869716027,"sku":null,"price":31.0,"currency_code":"USD","in_stock":true},{"title":"4.0 mm (0.57 in) \/ 1 Meter (39.4 in)","offer_id":43768869847099,"sku":null,"price":41.0,"currency_code":"USD","in_stock":true},{"title":"5.0 mm (0.97 in) \/ 1 Meter (39.4 in)","offer_id":43768869978171,"sku":null,"price":46.0,"currency_code":"USD","in_stock":true},{"title":"6.0 mm (0.236 in) \/ 1 Meter (39.4 in)","offer_id":43768868798523,"sku":null,"price":66.0,"currency_code":"USD","in_stock":true},{"title":"8.0 mm (0.35 in) \/ 1 Meter (39.4 in)","offer_id":43768925683771,"sku":null,"price":77.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4473\/6059\/files\/HighPureTitaniumWire.webp?v=1783690809","url":"https:\/\/rapidkeen.com\/products\/high-purity-titanium-wire-4n-research","provider":"RapidKeen","version":"1.0","type":"link"}