Molecular formula: NH4SCN Molecular weight: 76.12 CAS: 1762-95-4 HS NO: 28429010
Index( Quality Criterion:HG/T2154/91) |
Export Grade
|
1st Grade
|
Liquid
|
NH4SCN Min% |
99.0
|
98.0
|
50--55
|
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(SO42-) % 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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|
ALIAS:: Ammonium Rhodanide, Ammonium Sulfocyanate, Ammonium Sulfocyanite,
ammonium isothiocyanate, Thiocyanic Acid, Ammonium Salt
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 140°C bring thiourea. melts at 149.6°C. .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
Photographit: Stabilizer, accelerator, etc.
Metal finishing: Plating, flotation agent.
as intermediate for metal thiocyanates (NaSCN, KSCN, CuSCN, Ca(SCN)2 ).
Packing: 25kg each net, Kraft-plastic laminated bag with PE liner. net 25kg woven bags.
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.
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