Ammonium thiocyanate CAS 1762-95-4

[Typical Properties]

At 92 ℃, it is a rhombic crystal. Melting point 147 ℃ (decomposition at 170 ℃), relative density 1.3057, refractive index 1.685. Easy to dissolve in water, exhibits endothermic reaction when dissolved in water, soluble in ethanol, alkali metal hydroxides, acetone, pyridine, and liquid sulfur dioxide, difficult to dissolve in chloroform (trichloromethane). The solution turns red under sunlight. When encountering iron salts, it generates blood red thiocyanate iron, which can be quantitatively determined by colorimetry with standard solutions. Thiourea is formed when heated to around 140 ℃. Decompose into ammonia, carbon disulfide, and hydrogen sulfide at 176 ℃.

[Specification]

[Usage]

Used as a polymerization catalyst for dyes and organic synthesis, used for pesticide weed control and defoliant, antibiotic separation, and also as a raw material for the production of cyanide and thiourea. Ammonium thiocyanate is an auxiliary raw material for the production of hydrogen peroxide. It is also used as a zinc coating, printing and dyeing diffusion agent, and electroplating additive. Application: Detection and determination of trace iron, determination of silver and mercury, separation of polymerization catalysts and antibiotics, analysis of pesticide content, water quality analysis, preparation of thiocyanate ions and standard solutions.

[Storage]

Easy to deliquescence in the air, Store in dry and ventilated place and isolated from acids.