Acetone cyanohydrin
|
CAS
75-86-5
|
CH3C(OH)CNCH3
|
RTECS
OD9275000
|
Synonyms & Trade Names
Cyanohydrin-2-propanone, 2-Cyano-2-propanol, alpha-Hydroxyisobutyronitrile, 2-Hydroxy-2-methyl-propionitrile, 2-Methyllactonitrile
|
DOT ID & Guide
1541 155 (stabilized)
|
Exposure
Limits
|
NIOSH REL: C 1 ppm (4 mg/m3) [15-minute]
|
|
OSHA PEL: none
|
IDLH
N.D.
See: IDLH INDEX
|
Conversion
1 ppm = 3.48 mg/m3
|
Physical Description
Colorless liquid with a faint odor of bitter almond. [Note: Forms cyanide in the body.]
|
MW: 85.1
|
BP: 203°F
|
FRZ: -4°F
|
Sol: Miscible
|
VP: 0.8 mmHg
|
IP: ?
|
|
Sp.Gr(77°F): 0.93
|
Fl.P: 165°F
|
UEL: 12.0%
|
LEL: 2.2%
|
|
|
Class IIIA Combustible Liquid: Fl.P. at or above 140°F and below 200°F.
|
Incompatibilities & Reactivities
Sulfuric acid, caustics [Note: Slowly decomposes to acetone & HCN at room temperatures; rate is accelerated by an increase in pH, water content, or temperature.]
|
Measurement Methods
NIOSH 2506
See: NMAM or OSHA Methods
|
Personal Protection & Sanitation (See protection codes)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: No recommendation
Provide: Eyewash, Quick drench
|
First Aid (See procedures)
Eye: Irrigate immediately
Skin: Water flush immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
|
Respirator Recommendations
NIOSH
Up to 10 ppm:
(APF = 10) Any supplied-air respirator
Up to 25 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode
Up to 50 ppm:
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepiece
Up to 250 ppm:
(APF = 2000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
Emergency or planned entry into unknown concentrations or IDLH conditions:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus
Escape:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister/Any appropriate escape-type, self-contained breathing apparatus
Important additional information about respirator selection
|
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
|
Symptoms
Irritation eyes, skin, respiratory system; dizziness, lassitude (weakness, exhaustion), headache, confusion, convulsions; liver, kidney injury; pulmonary edema, asphyxia
|
Target Organs
Eyes, skin, respiratory system, central nervous system, cardiovascular system, liver, kidneys, gastrointestinal tract
|
|
See also: INTRODUCTION
See ICSC CARD: 0611 |
