Hexane isomers (excluding n-Hexane)
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CAS
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C6H14
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RTECS
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Synonyms & Trade Names
Diethylmethylmethane; Diisopropyl; 2,2-Dimethylbutane; 2,3-Dimethylbutane; Isohexane; 2-Methylpentane; 3-Methylpentane [Note: Also see specific listing for n-Hexane.]
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DOT ID & Guide
1208 / 128
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Exposure
Limits
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NIOSH REL: TWA 100 ppm (350 mg/m3) C 510 ppm (1800 mg/m3) [15-minute]
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OSHA PEL†: none
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IDLH
N.D.
See: IDLH INDEX
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Conversion
1 ppm = 3.53 mg/m3
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Physical Description
Clear liquids with mild, gasoline-like odors. [Note: Includes all the isomers of hexane except n-hexane.]
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MW: 86.2
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BP: 122-145°F
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FRZ: -245 to -148°F
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Sol: Insoluble
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VP: ?
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IP: ?
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Sp.Gr: 0.65-0.66
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Fl.P: -54 to 19°F
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UEL: ?
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LEL: ?
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Class IB Flammable Liquids
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Incompatibilities & Reactivities
Strong oxidizers
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Measurement Methods
None available
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet (flammable)
Change: No recommendation
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
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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 canister/Any appropriate escape-type, self-contained breathing apparatus
Important additional information about respirator selection
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Exposure Routes
inhalation, ingestion, skin and/or eye contact
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Symptoms
Irritation eyes, skin, respiratory system; headache, dizziness; nausea; chemical pneumonitis (aspiration liquid); dermatitis
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Target Organs
Eyes, skin, respiratory system, central nervous system
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