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Hexane isomers (excluding n-Hexane)																				Related Pages
Synonyms & Trade Names
			Diethylmethylmethane, Diisopropyl, 2,2-Dimethylbutane, 2,3-Dimethylbutane, Isohexane, 2-Methylpentane, 3-Methylpentane
					[Note: Also see specific listing for n-Hexane.]
CAS No.
	RTECS No.
	DOT ID & Guide
			1208 128

FormulaC6H14
	Conversion
			1 ppm = 3.53 mg/m3
	IDLH
			N.D.See: IDLH INDEX

Exposure Limits
			NIOSH RELTWA 100 ppm (350 mg/m3) C 510 ppm (1800 mg/m3) [15-minute]
					OSHA PEL none See Appendix G
	Measurement Methods
			None available 
					
					See: NMAM or OSHA Methods
										
Physical Description
			Clear liquids with mild, gasoline-like odors.
					[Note: Includes all the isomers of hexane except n-hexane.]													
										
Molecular Weight86.2	
	Boiling Point122-145°F
	Freezing Point-245 to -148°F
	SolubilityInsoluble
	Vapor Pressure?
	Ionization Potential?											
Specific Gravity0.65-0.66	
	Flash Point-54 to 19°F
	Upper Explosive Limit?
	Lower Explosive Limit?
Class IB Flammable Liquids
Incompatibilities & Reactivities
			Strong oxidizers
Exposure Routes
			inhalation, ingestion, skin and/or eye contact
Symptoms
			irritation eyes, skin, respiratory system; headache, dizziness; nausea; chemical pneumonitis (aspiration liquid); dermatitis
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 (flammable)
							**Change:**No recommendation
	First Aid
			(See procedures)**Eye:**Irrigate immediately
							**Skin:**Soap wash immediately
							**Breathing:**Respiratory support
							**Swallow:**Medical attention immediately
Respirator Recommendations
			**NIOSH****Up to 1000 ppm**: (APF = 10) Any supplied-air respirator***Up to 2500 ppm**: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode***Up to 5000 ppm**: (APF = 50) Any supplied-air respirator that has a tight-fitting facepiece and is operated in a continuous-flow mode*(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

			
							

			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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