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Acetaldehyde																				Related Pages
Synonyms & Trade Names
			Acetic aldehyde, Ethanal, Ethyl aldehyde
CAS No.
			75-07-0
	RTECS No.
			AB1925000
	DOT ID & Guide
			1089 129

FormulaCH3CHO
	Conversion
			1 ppm = 1.80 mg/m3
	IDLH
			Ca [2000 ppm]See: 75070

Exposure Limits
			NIOSH RELCa See Appendix A See Appendix C (Aldehydes)
					OSHA PEL TWA 200 ppm (360 mg/m3) See Appendix G
	Measurement Methods
			**NIOSH** 2018 , 2538 , 3507;**OSHA** 68
					
					See: NMAM or OSHA Methods
										
Physical Description
			Colorless liquid or gas (above 69°F) with a pungent, fruity odor.													
										
Molecular Weight44.1	
	Boiling Point69°F
	Freezing Point-190°F
	SolubilityMiscible
	Vapor Pressure740 mmHg
	Ionization Potential10.22 eV											
Specific Gravity0.79	
	Flash Point-36°F
	Upper Explosive Limit60%
	Lower Explosive Limit4.0%
Class IA Flammable Liquid: Fl.P. below 73°F and BP below 100°F.
Incompatibilities & Reactivities
			Strong oxidizers, acids, bases, alcohols, ammonia & amines, phenols, ketones, HCN, H2S
					[Note: Prolonged contact with air may cause formation of peroxides that may explode and burst containers; easily undergoes polymerization.]
Exposure Routes
			inhalation, ingestion, skin and/or eye contact
Symptoms
			irritation eyes, nose, throat; eye, skin burns; dermatitis; conjunctivitis; cough; central nervous system depression; delayed pulmonary edema; In Animals: kidney, reproductive, teratogenic effects; [potential occupational carcinogen]
Target Organs
			Eyes, skin, respiratory system, kidneys, central nervous system, reproductive system
Cancer Site[in animals: nasal cancer]										
Personal Protection/Sanitation
			(See protection codes) **Skin:**Prevent skin contact
							**Eyes:**Prevent eye contact
							**Wash skin:**When contaminated
							**Remove:**When wet (flammable)
							**Change:**No recommendation
							**Provide:**Eyewash, Quick drench
	First Aid
			(See procedures)**Eye:**Irrigate immediately
							**Skin:**Water flush promptly
							**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 canisterAny appropriate escape-type, self-contained breathing apparatus
				Important additional information about respirator selection
See also
			INTRODUCTION
					  ICSC CARD: 0009
					  MEDICAL TESTS: 0001

			
							

			Page last reviewed:  October 30, 2019						Content
							source: 	National Institute for Occupational Safety and Health NIOSH Pocket Guide to Chemical Hazards
Introduction
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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
First Aid Procedures Follow NIOSH Facebook
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