Dimethylformamide
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CAS
68-12-2
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HCON(CH3)2
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RTECS
LQ2100000
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Synonyms & Trade Names
Dimethyl formamide; N,N-Dimethylformamide; DMF
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DOT ID & Guide
2265 / 129
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Exposure
Limits
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NIOSH REL: TWA 10 ppm (30 mg/m3) [skin]
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OSHA PEL: TWA 10 ppm (30 mg/m3) [skin]
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IDLH
500 ppm
See: 68122
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Conversion
1 ppm = 2.99 mg/m3
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Physical Description
Colorless to pale-yellow liquid with a faint, amine-like odor.
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MW: 73.1
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BP: 307°F
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FRZ: -78°F
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Sol: Miscible
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VP: 3 mmHg
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IP: 9.12 eV
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Sp.Gr: 0.95
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Fl.P: 136°F
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UEL: 15.2%
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LEL(212°F): 2.2%
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Class II Combustible Liquid: Fl.P. at or above 100°F and below 140°F.
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Incompatibilities & Reactivities
Carbon tetrachloride; other halogenated compounds when in contact with iron; strong oxidizers; alkyl aluminums; inorganic nitrates
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Measurement Methods
NIOSH 2004; OSHA 66
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
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Water flush promptly
Breathing: Respiratory support
Swallow: Medical attention immediately
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Respirator Recommendations
NIOSH
Up to 100 ppm:
(APF = 10) Any supplied-air respirator*
Up to 250 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode*
Up to 500 ppm:
(APF = 50) Any supplied-air respirator that has a tight-fitting facepiece and is operated in a continuous-flow mode*
(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
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Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
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Symptoms
Irritation eyes, skin, respiratory system; nausea, vomiting, colic; liver damage, enlarged liver; high blood pressure; face flush; dermatitis; in animals: kidney, heart damage
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Target Organs
Eyes, skin, respiratory system, liver, kidneys, cardiovascular system
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See also: INTRODUCTION
See ICSC CARD: 0457 See MEDICAL TESTS: 0091
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