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n-Heptane |
CAS 142-82-5 | ||
CH3[CH2]5CH3 |
RTECS MI7700000 | ||
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Synonyms & Trade Names Heptane, normal-Heptane |
DOT ID & Guide 1206 128 |
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Exposure
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NIOSH REL: TWA 85 ppm (350 mg/m3) C 440 ppm (1800 mg/m3) [15-minute] | ||
| OSHA PEL†: TWA 500 ppm (2000 mg/m3) | |||
| IDLH 750 ppm See: 142825 | Conversion 1 ppm = 4.10 mg/m3 | ||
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Physical Description Colorless liquid with a gasoline-like odor. |
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MW: 100.2 |
BP: 209°F |
FRZ: -131°F |
Sol: 0.0003% |
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VP(72°F): 40 mmHg |
IP: 9.90 eV |
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Sp.Gr: 0.68 |
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Fl.P: 25°F |
UEL: 6.7% |
LEL: 1.05% |
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| Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F. | |||
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Incompatibilities & Reactivities Strong oxidizers |
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Measurement Methods NIOSH 1500; OSHA 7 See: NMAM or OSHA Methods |
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Personal Protection & Sanitation (See protection) 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 promptly Breathing: Respiratory support Swallow: Medical attention immediately |
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Important additional information about respirator selection Respirator Recommendations NIOSH Up to 750 ppm: (APF = 10) Any chemical cartridge respirator with organic vapor cartridge(s) (APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister (APF = 25) Any powered, air-purifying respirator with organic vapor cartridge(s) (APF = 10) Any supplied-air respirator (APF = 50) Any self-contained breathing apparatus 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 |
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| Exposure Routes inhalation, ingestion, skin and/or eye contact | |
| Symptoms Dizziness, stupor, incoordination; loss of appetite, nausea; dermatitis; chemical pneumonitis (aspiration liquid); unconsciousness | |
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Target Organs
Skin, respiratory system, central nervous system |
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| See also: INTRODUCTION See ICSC CARD: 0657 |