|
Category |
toxic substances |
|
Toxicity grading |
highly toxic |
|
Acute toxicity |
oral-rat LD50: 750 mg / kg; Oral - Mouse LD50: 500 mg / kg |
|
Flammability and hazard characteristics |
upon heating, it produces toxic nitrogen oxides, sulfur oxides, cyanide and ammonia fumes |
|
Storage characteristics |
Treasury: ventilation, low-temperature and dry; store it separately from potassium perchlorate |
|
Chemical Properties |
colourless or white crystals or powder |
|
Extinguishing agent |
Dry powder, foam, sand, carbon dioxide, water mist |
|
Usage |
Applied in the formation of novel two-dimensional Cd-SCN coordination solids with unusual and tailorable, checkerboard- or herringbone-patterned structures these structures are important steps toward technologically useful materials.1 |
|
Professional standards |
STEL 5 mg / m3 |
|
General Description |
Ammonium thiocyanate is a colorless crystalline solid. Ammonium thiocyanate is soluble in water. The primary hazard is the threat posed to the environment. Immediate steps should be taken to limit its spread to the environment. Ammonium thiocyanate is used in chemical analysis, in photography, as a fertilizer, and for many other uses. |
|
Air & Water Reactions |
Water soluble. |
|
Reactivity Profile |
Ammonium thiocyanate can release ammonia vapors if mixed with a chemical base or with an acid. Violent or explosive reactions have occurred when thiocyanates are mixed with oxidizing agents (such as chlorates(potassium chlorate), nitrates, nitric acid, and peroxides). Nitric acid violently oxidized a thiocyanate solution [Bretherick 1979 p. 121]. An explosion of guanidine nitrate demolished an autoclave built to withstand 50 atmospheres, in which Ammonium thiocyanate was being made from Ammonium thiocyanate and lead nitrate [C. Angew. Chem. 49:23 1936]. |
|
Health Hazard |
Inhalation of dust causes irritation of nose and throat. Ingestion causes dizziness, cramps, nervous disturbances. Dust irritates eyes. Can be absorbed through skin; prolonged contact may produce various skin eruptions, dizziness, cramps, nausea, and mild to severe disturbance of the nervous system. |
|
Fire Hazard |
Special Hazards of Combustion Products: Decomposes to form ammonia, hydrogen sulfide, and hydrogen cyanide. Oxides of nitrogen may also form. All of these products are toxic. |
China (Mainland)
