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Dimethylformamide

Synonyms & Trade Names
Dimethyl formamide; N,N-Dimethylformamide; DMF
CAS No.
68-12-2
RTECS No.
LQ2100000
DOT ID & Guide
2265 129
Formula
HCON(CH3)2
Conversion
1 ppm = 2.99 mg/m3
IDLH
500 ppm
See: 68122
Exposure Limits
NIOSH REL
: TWA 10 ppm (30 mg/m3) [skin]
OSHA PEL
: TWA 10 ppm (30 mg/m3) [skin]
Measurement Methods

NIOSH 2004;
OSHA 66
See: NMAM or OSHA Methods
Physical Description
Colorless to pale-yellow liquid with a faint, amine-like odor.
MW:
73.1
BP:
307°F
FRZ:
-78°F
Sol:
Miscible
VP:
3 mmHg
IP:
9.12 eV
Sp.Gr:
0.95
Fl.P:
136°F
UEL:
15.2%		 LEL(212°F): 2.2%
Class II Combustible Liquid: Fl.P. at or above 100°F and below 140°F.
Incompatibilities & Reactivities
Carbon tetrachloride; other halogenated compounds when in contact with iron; strong oxidizers; alkyl aluminums; inorganic nitrates
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, respiratory system; nausea, vomiting, colic; liver damage, enlarged liver; high blood pressure; face flush; dermatitis; in animals: kidney, heart damage
Target Organs
Eyes, skin, respiratory system, liver, kidneys, cardiovascular system
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
First Aid
(See procedures)
Eye: Irrigate immediately
Skin: Water flush promptly
Breathing: Respiratory support
Swallow: Medical attention immediately
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

See also: INTRODUCTION   See ICSC CARD: 0457   See MEDICAL TESTS: 0091
 

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