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Tungsten etchant , CAS No.T487587
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Synonyms
Tungsten etch
Storage
Room temperature
Shipped In
Normal
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Why this grade
for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Storage & shipping
Room temperature Ships Normal Check lot-specific COA for exact specifications.
Quality documents
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Literature proof
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Overview
Tungsten etchant is a mixture of potassium hydroxide and potassium ferricyanide based solution that facilitates the removal of tungsten and other materials like aluminium by dipping the substrate into the etching solution.Selective etchants for tungsten thin-film metallizations used in semiconductor and microelectronics technology. Etchants are buffered, mildly alkaline ferricyanide-based formulations providing high resolution patterns with minimal undercutting and photoresist compatibility. Controlled, uniform etching is achieved by immersion or spray etch technique.
Specifications
Synonyms
Tungsten etch
Storage
Room temperature
Shipped In
Normal
Documentation
📋 Safety Data Sheet (SDS)
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →✅ Certificate of Analysis (COA)
Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →🔬 Specification Sheet
Full quality attributes and acceptance criteria for this grade.
View spec sheet →Advanced Data
Certificates（CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
 F2325453 | Certificate of Analysis | Apr 02, 2026 | T487587 |
| F2325462 | Certificate of Analysis | Apr 02, 2026 | T487587 |
| F2325467 | Certificate of Analysis | Apr 02, 2026 | T487587 |
| E2628564 | Certificate of Analysis | Mar 23, 2026 | T487587 |
| E2628579 | Certificate of Analysis | Mar 23, 2026 | T487587 |
| C2321725 | Certificate of Analysis | Jan 19, 2026 | T487587 |
| C2321726 | Certificate of Analysis | Jan 19, 2026 | T487587 |
| C2321745 | Certificate of Analysis | Jan 19, 2026 | T487587 |
| C2321891 | Certificate of Analysis | Jan 19, 2026 | T487587 |
| F2325510 | Certificate of Analysis | Jun 16, 2023 | T487587 |
| C2321743 | Certificate of Analysis | Mar 06, 2023 | T487587 |
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Chemical and Physical Properties
| Solubility | Soluble in water |
|---|---|
| Sensitivity | Moisture sensitive |
Documents & Articles
Solution Calculators
Reviews
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