Thiourea (CAS 62-56-6) is white crystalline solid, an organosulfur compound with reducing properties, available in industrial grade for mining, textile, chemical synthesis and metal surface treatment. TNJ Chemical is the key manufacturer and exporter since from 2001 in China. We guarantee high quality, competitive price, stable supply, fast delivery and tech support etc. To find more, please contact sales@tnjchem.com
Product Information
Chemical Name Thiourea
CAS No. 62-56-6
Molecular Formula CH₄N₂SMolecular Weight 76.12
EINECS No. 200-543-5
Synonym Thiocarbamide, Sulfourea
Chemphysical Properties
Appearance: White crystalline powder or crystalsOdor: Odorless
Density: 1.405 g/cm³ @20℃
Melting Point: 176–178 ℃
Solubility: Soluble in water, ethanol; slightly soluble in ether
Character: Reducing agent, reacts with metal ions, easily forms complexes with heavy metals
Quality Specification
| Item | Specification (Industrial Grade) |
|---|---|
| Assay | ≥99.0% |
| Loss on Drying | ≤0.50% |
| Residue on Ignition | ≤0.10% |
| Sulfate (SO₄²⁻) | ≤0.07% |
| Heavy Metals (Pb) | ≤10 ppm |
Use & Application
Mining industry: Gold leaching auxiliary reagent, mineral flotation agent
Textile industry: Vulcanization accelerator, fabric bleaching and dyeing auxiliary, anti-oxidant
Metal treatment: Silver / copper plating additive, metal rust remover, surface passivation agent
Chemical synthesis: Raw material for pharmaceuticals, pesticide and rubber accelerators
Photography & paper: Photographic developer, paper anti-yellowing agent
Packing
25kg woven bag with inner PE liner. Custom packing available on request.
Delivery & Storage
Store in cool, dry, ventilated warehouse. Keep sealed, away from heat, sunlight, oxidants and acids. Avoid mixing with food and feed. Shelf life 12 months under proper storage. Handle carefully to prevent dust inhalation.



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