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| Parameter | Details |
|---|---|
| Chemical Name | 1-Phenyl-5-mercaptotetrazole (PMT) |
| CAS Number | 86-93-1 |
| Molecular Formula | C₇H₆N₄S |
| Molecular Weight | 178.21 g/mol |
| Physical Appearance | White to pale yellow crystalline powder; Odorless |
| Melting Point | 158–162 °C |
| Solubility | Soluble in hot water, ethanol, acetone, ethyl acetate; Slightly soluble in cold water; Insoluble in petroleum ether |
| Chemical Properties | Contains reactive thiol (-SH) group; Stable under normal storage conditions; Decomposes at high temperatures (>200°C) |
| Primary Applications | 1. Electroplating: Brightener and leveling agent for copper, nickel, and gold plating; Improves plating uniformity and gloss2. Corrosion Inhibition: Corrosion inhibitor for metals in aqueous systems3. Pharmaceuticals: Intermediate for synthesis of tetrazole-containing drugs4. Chemical Synthesis: Ligand in coordination chemistry and organic synthesis |
| Safety & Hazards | - Low acute toxicity; May cause mild skin and eye irritation upon direct contact- Inhalation of dust may cause respiratory tract discomfort- Avoid contact with strong oxidizers (may react violently) |
| Storage Requirements | Store in airtight containers in a cool, dry, well-ventilated area; Keep away from oxidizing agents, acids, and alkalis; Protect from moisture |
| Regulatory Notes | No strict global restrictions for industrial use; Comply with local occupational safety and environmental regulations during handling and disposal |
