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Acetone cyanohydrin  Structure

Acetone cyanohydrin

Chemical Properties

Melting point -19 °C (lit.)
Boiling point 82 °C/23 mmHg (lit.)
Density  0.932 g/mL at 25 °C (lit.)
vapor pressure  0.3 psi ( 20 °C)
refractive index  n20/D 1.399(lit.)
Flash point 147 °F
storage temp.  Refrigerator
solubility  very soluble in water, alcohol, and ether; slightly soluble in petroleum ether
form  Liquid
pka 11.45±0.29(Predicted)
color  Clear colorless to yellow
Water Solubility  miscible
Merck  13,68
Exposure limits Ceiling 4 mg (1.2 ppm)/m3/15 min (NIOSH).
Zholdakova et al. (1995) have recommended a maximum permissible concentration of 0.035 mg/L in water as cyanide for acetone cyanohydrin or in combination with other cyanides.
CAS DataBase Reference 75-86-5(CAS DataBase Reference)
NIST Chemistry Reference Propanenitrile, 2-hydroxy-2-methyl-(75-86-5)
EPA Substance Registry System Acetone cyanohydrin (75-86-5)

Safety Information

Hazard Codes  T+,N
Risk Statements  26/27/28-50-50/53
Safety Statements  27-45-60-61-7/9
RIDADR  UN 1541 6.1/PG 1
WGK Germany  3
RTECS  OD9275000
HazardClass  6.1(a)
PackingGroup  I
HS Code  29269095
Hazardous Substances Data 75-86-5(Hazardous Substances Data)
Toxicity LD50 orally in rats: 0.17 g/kg (Smyth)

MSDS

Usage And Synthesis