Diacetone alcohol
|
CAS
123-42-2
|
CH3COCH2C(CH3)2OH
|
RTECS
SA9100000
|
Synonyms & Trade Names
Diacetone, 4-Hydroxy-4-methyl-2-pentanone, 2-Methyl-2-pentanol-4-one
|
DOT ID & Guide
1148 / 129
|
Exposure Limits
|
NIOSH REL: TWA 50 ppm (240 mg/m3)
|
OSHA PEL: TWA 50 ppm (240 mg/m3)
|
IDLH
1800 ppm [10%LEL]
See: 123422
|
Conversion
1 ppm = 4.75 mg/m3
|
Physical Description
Colorless liquid with a faint, minty odor.
|
MW: 116.2
|
BP: 334°F
|
FRZ: -47°F
|
Sol: Miscible
|
VP: 1 mmHg
|
IP: ?
|
|
Sp.Gr: 0.94
|
Fl.P: 125°F
|
UEL: 6.9%
|
LEL: 1.8%
|
|
Class II Combustible Liquid: Fl.P. at or above 100°F and below 140°F.
|
Incompatibilities & Reactivities
Strong oxidizers, strong alkalis
|
Measurement Methods
NIOSH 1402, 1405; OSHA 7
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: No recommendation
|
First Aid (See procedures)
Eye: Irrigate immediately
Skin: Water flush promptly
Breathing: Respiratory support
Swallow: Medical attention immediately
|
Respirator Recommendations
NIOSH/OSHA
Up to 1250 ppm: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode£ (APF = 25) Any powered, air-purifying respirator with organic vapor cartridge(s)£
Up to 1800 ppm: (APF = 50) Any chemical cartridge respirator with a full facepiece and organic vapor cartridge(s) (APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister (APF = 50) Any powered, air-purifying respirator with a tight-fitting facepiece and organic vapor cartridge(s)£ (APF = 50) Any self-contained breathing apparatus with a full facepiece (APF = 50) Any supplied-air respirator with a full facepiece
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, ingestion, skin and/or eye contact
|
Symptoms
Irritation eyes, skin, nose, throat; corneal damage; in animals: narcosis, liver damage
|
Target Organs
Eyes, skin, respiratory system, central nervous system, liver
|
See also: INTRODUCTION
See MEDICAL TESTS: 0067
|