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n-Butyl lactate																				Related Pages
Synonyms & Trade Names
			Butyl ester of 2-hydroxypropanoic acid, Butyl ester of lactic acid, Butyl lactate
CAS No.
			138-22-7
	RTECS No.
			OD4025000
	DOT ID & Guide
			1993 128(combustible liquid, n.o.s.)

FormulaCH3CH(OH)COOC4H9
	Conversion
			1 ppm = 5.98 mg/m3
	IDLH
			N.D.See: IDLH INDEX

Exposure Limits
			NIOSH RELTWA 5 ppm (25 mg/m3)
					OSHA PEL none See Appendix G
	Measurement Methods
			None available 
					
					See: NMAM or OSHA Methods
										
Physical Description
			Clear, colorless to white liquid with a mild, transient odor.													
										
Molecular Weight146.2	
	Boiling Point370°F
	Freezing Point-45°F
	SolubilitySlight
	Vapor Pressure0.4 mmHg
	Ionization Potential?											
Specific Gravity0.98	
	Flash Point160°F
	Upper Explosive Limit?
	Lower Explosive Limit1.15%
Class IIIA Combustible Liquid: Fl.P. at or above 140°F and below 200°F.
Incompatibilities & Reactivities
			Strong acids & bases, strong oxidizers, heat, sparks, open flames
Exposure Routes
			inhalation, ingestion, skin and/or eye contact
Symptoms
			irritation eyes, skin, nose, throat; drowsiness, headache, central nervous system depression; nausea, vomiting
Target Organs
			Eyes, skin, respiratory system, 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:**Eyewash, Quick drench
	First Aid
			(See procedures)**Eye:**Irrigate immediately
							**Skin:**Soap wash immediately
							**Breathing:**Respiratory support
							**Swallow:**Medical attention immediately
Respirator Recommendations
			Not available.
				Important additional information about respirator selection
See also
			INTRODUCTION

			
							

			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
RTECS Numbers
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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