# NIOSH Pocket Guide to Chemical Hazards
Dimethyl carbamoyl chloride | CAS 79-44-7
(CH3)2NCOCl | RTECS FD4200000
Synonyms & Trade Names Chloroformic acid dimethylamide; Dimethylcarbamic chloride; N,N-Dimethylcarbamoyl chloride; DMCC | DOT ID & Guide 2262 156
Exposure Limits | NIOSH REL: Ca See Appendix A
OSHA PEL: none
IDLH Ca [N.D.] | Conversion
Physical Description Clear, colorless liquid.
MW: 107.6 | BP: 329°F | FRZ: -27°F | Sol: Reacts
VP: ? | IP: ? |  | Sp.Gr: 1.17
Fl.P: 155°F | UEL: ? | LEL: ? |
Class IIIA Combustible Liquid: Fl.P. at or above 140°F and below 200°F.
Incompatibilities & Reactivities Acids, water [Note: Rapidly hydrolyzes in water to dimethylamine, carbon dioxide, and hydrogen chloride.]
Measurement Methods None available
Personal Protection & Sanitation 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 At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration: (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
Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms Irritation eyes, skin, nose, throat, respiratory system; eye, skin burns; cough, wheezing, larnygitis, dyspnea (breathing difficulty); headache, nausea, vomiting; liver injury; [potential occupational carcinogen]
Target Organs Eyes, skin, respiratory system, liver Cancer Site [in animals: nasal cancer]
See also: INTRODUCTION