- Thiocyanic acid, ammonium salt
- Ammonium rhodanide
- Ammonium sulfocyanate
- Ammonium sulfocyanide
An aqueous solution of a colorless crystalline solid.
In matches, double-dyeing fabrics, photography, improving & incr strength of silks weighted with tin salts, in producing grayish-black coating on zn, manufacture transparent artificial resins, thiourea, in pesticides, in determination & detection of small quantities of iron, determination of ag, hg, etc.
Registry Numbers and Inventories.
EC Index Number
R 20/21/22 32
Agricultural Chemical and Pesticide; Human Data
Swiss Giftliste 1
Japan ENCS (MITI)
Melting point, °C
Decomposition point, °C
Vapor pressure, mmHg
7.5 (20 C)
1.305 g/cm3 (20 C)
Solubility in water
Hazards and Protection.
Keep away from sources of ignition. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances.
Wash thoroughly after handling. Use with adequate ventilation. Avoid contact with skin and eyes. Avoid ingestion and inhalation.
Eyes: Wear chemical goggles and a face shield if splashing is possible. Skin: Wear appropriate gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions. Remove all sources of ignition.
Stable under normal shipping and handling conditions.
Can explode if mixed with lead nitrate. Reacts dangerously with chlorates, nitrates, nitric acid, organic peroxides, oxidizing agents, peroxides, potassium chlorate, and sodium chlorate.
Hydrogen cyanide, nitrogen oxides, carbon monoxide, oxides of sulfur, carbon dioxide, ammonia and/or derivatives.
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Dust can be an explosion hazard when exposed to heat or flame. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.
Solid may be combustible; solution is not flammable.
Decomposes to form ammonia, hydrogen sulfide, and hydrogen cyanide.
Chronic exposure may cause thyroid damage: thyroid enlargement, decrease in metabolic rate, and hypothyroidism.
Harmful if swallowed. Causes gastrointestinal irritation with nausea, vomiting and diarrhea. May cause agitation, delerium, convulsions, and muscle
Causes respiratory tract irritation.
Causes skin irritation. Chronic exposure may cause thyroid damage: thyroid enlargement, decrease in metabolic rate, and hypothyroidism.
May cause moderate eye irritation.
Induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
USCG CHRIS Code
2838 00 00
Std. Transport #
IMO Pollution Category
IMO Hazard code