Ammonium thiocyanate is an inorganic compound with the formula NH4SCN. It is the salt of the ammonium cation and the thiocyanate anion.
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 , hydrogen sulfide and toxic oxides of nitrogen, sulfur, and carbon.
Usage:
Ammonium thiocyanate is used in the manufacture of herbicides, thiourea, and transparent artificial resins; In matches; As a stabilizing agent in photography; In various rustproofing compositions; As an adjuvant in textile dyeing and printing; As a tracer in oil fields; In the separation of hafnium from zirconium, and in titrimetric analyses.
Ammonium thiocyanate can also be used to determine the iron content in soft drinks by colorimetry.
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.
| Index(Quality Criterion:HG/T2154/91) |
Export Grade |
1st Grade |
Liquid |
| NH 4 SCN 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(SO 4 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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