Home Categories Inorganic chemistry Ammonium thiocyanate
A0695812

Ammonium thiocyanate , 99.99% , 1762-95-4

Synonym(s):
Ammonium rhodanide;Ammonium rhodanide solution;Ammonium sulfocyanide;Ammonium sulfocyanide, Ammonium rhodanide, Thiocyanic acid ammonium salt, Ammonium sulfocyanate;Ammonium thiocyanate

CAS NO.:1762-95-4

Empirical Formula: CH4N2S

Molecular Weight: 76.12

MDL number: MFCD00011428

EINECS: 217-175-6

Pack Size Price Stock Quantity
25G RMB46.40 In Stock
100G RMB134.40 In Stock
500G RMB540.00 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: 152-154 °C (lit.)
Boiling point: 262.85°C
Density  1.3
vapor pressure  <1 hPa (20 °C)
refractive index  1.5300 (estimate)
Flash point: 190 °C
storage temp.  Store at +5°C to +30°C.
solubility  H2O: 1 M at 20 °C, clear, colorless
form  Solid
color  clear colorless or white
Specific Gravity 1.305
Odor Odorless
PH Range 4.5 - 6.0
PH 4.8-5.8 (50g/l, H2O, 20℃)
Water Solubility  163 g/100 mL (20 ºC)
Sensitive  Light Sensitive & Hygroscopic
Merck  14,561
BRN  3595135
Exposure limits NIOSH: IDLH 25 mg/m3
Stability: Stable. Incompatible with strong acids, strong oxidizing agents. Forms explosive mixtures with lead nitrate.
LogP 0.58

Description and Uses

Ammonium thiocyanate is a colorless solid which absorbs moisture and becomes liquid. Molecularweight= 76.12; Boiling point= 115℃; Freezing/Meltingpoint=160℃, decomposes at 170℃; Heat of solution=3.1 3 105 J/kg. Hazard Identification (based on NFPA-704 M Rating System): Health 2, Flammability 1,Reactivity 1, Corrosive. Soluble in water.

Colorless deliquescent crystals made by boiling an aqueous solution of ammonium cyanide with sulfur or polysulfides. It must be kept in a well-sealed container. The principal use for ammonium thiocyanate was in gold-toning formulas, but it was also used in a 5 percent solution to dissolve gelatin in overexposed carbon prints.

Safety

Symbol(GHS) 
GHS05,GHS07
Signal word  Danger
Hazard statements  H302+H312+H332-H318-H412
Precautionary statements  P273-P280-P301+P312-P302+P352+P312-P304+P340+P312-P305+P351+P338
Hazard Codes  Xn,Xi
Risk Statements  20/21/22-32-52/53-36/37/38
Safety Statements  13-61-36/37-36-26-46
RIDADR  9092
WGK Germany  1
RTECS  XK7875000
3
TSCA  Yes
HS Code  28380000
Toxicity LD50 orally in Rabbit: 500 mg/kg

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