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.

Molecular Weight

73.1

Boiling Point

307°F

Freezing Point

-78°F

Solubility

Miscible

Vapor Pressure

3 mmHg

Ionization Potential

9.12 eV

Specific Gravity

0.95

Flash Point

136°F

Upper Explosive Limit

15.2%

Lower Explosive Limit

(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

Dimethylformamide

NIOSH REL

OSHA PEL

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