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Propylene glycol monomethyl ether																				Related Pages
Synonyms & Trade Names
			Dowtherm® 209, 1-Methoxy-2-hydroxypropane, 2-Methoxy-1-methylethanol, 1-Methoxy-2-propanol, Propylene glycol methyl ether
CAS No.
			107-98-2
	RTECS No.
			UB7700000
	DOT ID & Guide

FormulaCH3OCH2CHOHCH3
	Conversion
			1 ppm = 3.69 mg/m3
	IDLH
			N.D.See: IDLH INDEX

Exposure Limits
			NIOSH RELTWA 100 ppm (360 mg/m3) ST 150 ppm (540 mg/m3)
					OSHA PEL none See Appendix G
	Measurement Methods
			**NIOSH** 2554;**OSHA** 99
					
					See: NMAM or OSHA Methods
										
Physical Description
			Clear, colorless liquid with a mild, ethereal odor.													
										
Molecular Weight90.1	
	Boiling Point248°F
	Freezing Point-139°F (Sets to glass)
	SolubilityMiscible
	Vapor Pressure(77°F): 12 mmHg
	Ionization Potential?											
Specific Gravity0.96	
	Flash Point97°F
	Upper Explosive Limit(calc): 13.8%
	Lower Explosive Limit(calc.): 1.6%
Class IC Flammable Liquid: Fl.P. at or above 73°F and below 100°F.
Incompatibilities & Reactivities
			Oxidizers, strong acids
					[Note: Hygroscopic (i.e., absorbs moisture from the air). May slowly form reactive peroxides during prolonged storage.]
Exposure Routes
			inhalation, ingestion, skin and/or eye contact
Symptoms
			irritation eyes, skin, nose, throat; headache, nausea, dizziness, drowsiness, incoordination; vomiting, diarrhea
Target Organs
			Eyes, skin, respiratory system, central nervous system
										
Personal Protection/Sanitation
			(See protection codes) **Skin:**No recommendation
							**Eyes:**Prevent eye contact
							**Wash skin:**No recommendation
							**Remove:**When wet (flammable)
							**Change:**No recommendation
	First Aid
			(See procedures)**Eye:**Irrigate immediately
							**Skin:**Water wash
							**Breathing:**Respiratory support
							**Swallow:**Medical attention immediately
Respirator Recommendations
			Not available.
				Important additional information about respirator selection
See also
			INTRODUCTION
					  ICSC CARD: 0551

			
							

			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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Chemical Names, Synonyms and Trade Names
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CAS Numbers
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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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