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CAS No.: | 1762-95-4 |
---|---|
Name: | Ammonium thiocyanate |
Molecular Structure: | |
Formula: | NH4SCN |
Molecular Weight: | 76.12 |
Synonyms: | Ammonium rhodanide;Rhodanine, ammonium salt;Thiocyanic acid ammonium salt;Ammonium sulfocyanate;Thiocyanic acid,compounds,ammonium salt;Thiocyanates;Amthio;Rhodanid;Usaf ek-p-433;Ammonium rhodanate; |
EINECS: | 217-175-6 |
Density: | 1.3 |
Melting Point: | 152-154 °C(lit.) |
Boiling Point: | 146 °C at 760 mmHg |
Flash Point: | 42.1 °C |
Solubility: | water: 163 g/100 mL (20 °C) |
Appearance: | colourless or white crystals or powder |
Hazard Symbols: | Xn,Xi |
Risk Codes: | 20/21/22-32-52/53-36/37/38 |
Safety: | 13-61-36/37-36-26 |
PSA: | 65.83000 |
LogP: | 0.72118 |
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Structure of Ammonium thiocyanate (CAS NO.1762-95-4):
IUPAC Name: azane; thiocyanic acid
Empirical Formula: CH4N2S
Molecular Weight: 76.1209
EINECS: 217-175-6
Flash Point: 42.1 °C
Enthalpy of Vaporization: 38.3 kJ/mol
Melting Point: 152-154 °C(lit.)
Boiling Point: 146 °C at 760 mmHg
Vapour Pressure: 4.73 mmHg at 25°C
Water Solubility: 163 g/100 mL (20 ºC)
Sensitive: Light Sensitive & Hygroscopic
Appearance: colourless or white crystals or powder
Stability: Stable. Incompatible with strong acids, strong oxidizing agents. Forms explosive mixtures with lead nitrate.
Product Categories: Industrial/Fine Chemicals;straight chain compounds;Inorganics
Synonyms of Ammonium thiocyanate (CAS NO.1762-95-4): Ammonium isothiocyanate ; Ammonium rhodanate ;
Ammonium sulfocyanate ; Ammonium sulfocyanide ; Ammoniumrhodanid ; Rhodanine, ammonium salt ; Thiocyanic acid, ammonium salt
Ammonium thiocyanate (CAS NO.1762-95-4) is used in the manufacture of thiourea,herbicides,and transparent artificial resins. And it is used as a stabilizing agent in photography,and is used in various rustproofing compositions. It is also used 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 (CAS NO.1762-95-4) is made in the United States by the reaction of carbon disulfide with aqueous ammonia. Ammonium dithiocarbamate is formed as an intermediate in this reaction, which upon heating, decomposes to ammonium thiocyanate and hydrogen sulfide.
CS2 + 2 NH3(aq) → NH2C(=S)SNH4 → NH4SCN + H2S
1. | orl-hmn TDLo:430 mg/kg:GIT,CNS | DAKMAJ Deutsches Archiv fuer Klinische Medizin. 102 (1911),606. | ||
2. | orl-rat LD50:750 mg/kg | GTPZAB Gigiena Truda i Professionalnye Zabolevaniia. Labor Hygiene and Occupational Diseases. 30 (10)(1986),51. | ||
3. | orl-mus LD50:500 mg/kg | GTPZAB Gigiena Truda i Professionalnye Zabolevaniia. Labor Hygiene and Occupational Diseases. 30 (10)(1986),51. | ||
4. | ipr-mus LDLo:500 mg/kg | NTIS** National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) AD277-689 . | ||
5. | orl-mus LD50:500 mg/kg | GTPZAB Gigiena Truda i Professionalnye Zabolevaniia. Labor Hygiene and Occupational Diseases. 30 (10)(1986),51. | ||
6. | ipr-mus LD50:500 mg/kg | NTIS** National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) AD277-689 . | ||
7. | orl-gpg LD50:500 mg/kg | GTPZAB Gigiena Truda i Professionalnye Zabolevaniia. Labor Hygiene and Occupational Diseases. 30 (10)(1986),51. |
Reported in EPA TSCA Inventory. EPA Genetic Toxicology Program.
Hazard Codes: Xn,Xi
Risk Statements: 20/21/22-32-52/53-36/37/38
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.
R32:Contact with acid liberates very toxic gas.
R52/53:Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 13-61-36/37-36-26
S13:Keep away from food, drink and animal foodstuffs.
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
S36/37:Wear suitable protective clothing and gloves.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
RIDADR: 9092
WGK Germany: 1
RTECS: XK7875000
F: 3
HS Code: 28380000
Poison by ingestion and intraperitoneal routes. Human systemic effects by ingestion: hallucinations and distorted perceptions, nausea or vomiting, and other gastrointestinal effects. See also THIOCYANATES. When heated to decomposition it emits toxic fumes of NH3, NOx, SOx, and CN?. Incompatible with KClO3 and mixtures with Pb(NO3)2.