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Dimethyl acetamide																				Related Pages
Synonyms & Trade Names
			N,N-Dimethyl acetamide, DMAC
CAS No.
			127-19-5
	RTECS No.
			AB7700000
	DOT ID & Guide

FormulaCH3CON(CH3)2
	Conversion
			1 ppm = 3.56 mg/m3
	IDLH
			300 ppmSee: 127195

Exposure Limits
			NIOSH RELTWA 10 ppm (35 mg/m3) [skin]
					OSHA PEL TWA 10 ppm (35 mg/m3) [skin]
	Measurement Methods
			**NIOSH** 2004
					
					See: NMAM or OSHA Methods
										
Physical Description
			Colorless liquid with a weak, ammonia- or fish-like odor.													
										
Molecular Weight87.1	
	Boiling Point329°F
	Freezing Point-4°F
	SolubilityMiscible
	Vapor Pressure2 mmHg
	Ionization Potential8.81 eV											
Specific Gravity0.94	
	Flash Point(oc) 158°F
	Upper Explosive Limit(320°F): 11.5%
	Lower Explosive Limit(212°F): 1.8%
Class IIIA Combustible Liquid: Fl.P. at or above 140°F and below 200°F.
Incompatibilities & Reactivities
			Carbon tetrachloride, other halogenated compounds when in contact with iron, oxidizers
Exposure Routes
			inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
			irritation skin; jaundice, liver damage; depression, drowsiness, hallucinations, delusions
Target Organs
			Skin, liver, central nervous 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
							**Provide:**Quick drench
	First Aid
			(See procedures)**Eye:**Irrigate immediately
							**Skin:**Water flush immediately
							**Breathing:**Respiratory support
							**Swallow:**Medical attention immediately
Respirator Recommendations
			**NIOSH/OSHA****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 300 ppm**: (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 canisterAny appropriate escape-type, self-contained breathing apparatus
				Important additional information about respirator selection
See also
			INTRODUCTION
					  ICSC CARD: 0259
					  MEDICAL TESTS: 0080

			
							

			Page last reviewed:  October 30, 2019						Content
							source: 	National Institute for Occupational Safety and Health NIOSH Pocket Guide to Chemical Hazards
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Appendices
A – NIOSH Potential Occupational Carcinogens
B – Thirteen OSHA-Regulated Carcinogens
C – Supplementary Exposure Limits
D – Substances with No Established RELs
E – OSHA Respirator Requirements for Selected Chemicals
F – Miscellaneous Notes
G – 1989 Air Contaminants Update Project: Exposure Limits NOT in Effect
Type C & CE – Definitions for Type C and Type CE Respirators
Personal Protection and Sanitation Codes
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