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Product Name: Ammonium Thiocyanate Molecular Formula: NH4SCN Molecular Weight: 76.12 CAS No.: 1762-95-4 H. S. Code: 2842.9010 Physical and Chemical Properties: 1)Physical State: Colorless, deliquescent crystals 2)Melting Point: 150 C 3)Specific Gravity: 1.31 4)Solubility in Water: Soluble 5)Solvent solubility: Soluble: Acetone, alcohol and ammonia 6)Flash Point: 190 C 7)PH: 4.5-6.0 (5% sol) 8)Stability: Stable under ordinary conditions. Moisture sensitive Specification: 1) Appearance Crystalline Powder 2) Assay 99.0% min. 98%min 3) Chlorides 0.01% max. 0.01%max 4) Sulfates 0.02% max. 0.02%max 5) Heavy metal 20 ppm max. 50 ppm max 6) Fe 2 ppm max. 3 ppm max 7) PH 4.5-6.0 (5% sol) 4.5-6.0 (5% sol) 8)Water 1.0 1.8 9) Package: 25 kg net PP bag with PE liner Aqueous Solution: 1) Assay: 50.0%-53.0% min. 2) Chlorides: 0.03% max. 3) Sulfates: 0.02% max. 4) Heavy metal: 20 ppm max. 5) Fe: 3 ppm max. 6) PH 4.5-6.0 (5% sol) 7) Packing: 1.3MT IBC tank Synonyms: Ammonium Rhodanide; Ammonium Rhodantate; Ammonium Rhodonide; Ammonium sulfocyanate; Ammonium Sulfocyanide; Ammonium thiocyanate; ATC; Thiocyanic acid, ammonium salt; Trans-aid; Properties: NH4SCN, a colorless crystalline or column crystal that is soluble in water, methanol, ethanol, pyridine, acetone & ammonia and insoluble in ethyl acetate, methyl chloride and chloroform; At 140C bring thiourea. Melts at 149.6C...Thermal decomposition at 170 C may produce highly toxic fumes of hydrogen cyanide, hydrogen sulfide and toxic oxides of nitrogen, sulfur, and carbon. Usage: Genaral: Mainly in pharmaceuticals, pesticide, textile, electroplating, photography, water tracer in oil fields, thinning agent, as intermediate for metal thiocyanates etc. Textile: Printing, dyeing and finishing operations accelerator in fixing baths Pesticide: Raw material for the production of a number of herbicides and fungicides Photographic: Stabilizer, accelerator, etc. Metal finishing: Plating, flotation agent. As intermediate for metal thiocyanates (NaSCN, KSCN, CuSCN, Ca(SCN)2 ). Storage: Store away from incompatible substances. Keep in a tightly closed bags. Store in a cool, dry, ventilated area to prevent it from being deliquescent. Separated from acids, bases and oxidants.
| Index( Quality Criterion:HG/T2154/91) | Export Grade | 1st Grade | Liquid |
| NH4SCN Min% | 99.0 | 98.0 | 50--53 |
| Clarity Test in water(100g/L) | Clarity | Clarity | Clarity |
| pH Value in water (50g/L) | 4.5-6.0 | 4.5-6.0 | 4.5-6.0 |
| Chloride (CL - ) % Max | 0.04 | 0..06 | 0.03 |
| Sulfate(SO4 2- ) % Max | 0.04 | 0.04 | 0.02 |
| Residue on ignition, % Max | 0.08 | 0.10 | 0.05 |
| Heavy metal (Pb), % Max | 0.002 | 0.002 | 0.001 |
| Iron ( Fe ) % Max | 0.0005 | 0.001 | 0.0003 |
| Water % Max | 1 | 1.7 | ---- |
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