| Agent Name |
n-Heptane |
|---|
| CAS Number |
142-82-5 |
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| Formula |
C7-H16 |
|---|
| Major Category |
Solvents |
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| Synonyms |
Dipropyl methane; Dipropylmethane; Eptani [Italian]; Gettysolve-C; Heptan [Polish]; Heptanen [Dutch]; Heptyl hydride; Skellysolve C; n-Heptane; [ChemIDplus] UN1206 |
|---|
| Category |
Aliphatics, Saturated |
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| Description |
Colorless liquid with a gasoline-like odor; [NIOSH] |
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| Sources/Uses |
"Standard for octane-rating determinations (pure normal heptane has zero octane number) anesthetic, solvent, organic synthesis, preparation of laboratory reagents." [HSDB] |
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| Exposure Assessment |
|---|
| Skin Designation (ACGIH) |
No |
|---|
| TLV (ACGIH) |
400 ppm |
|---|
| STEL (ACGIH) |
500 ppm |
|---|
| PEL (OSHA) |
500 ppm |
|---|
| MAK |
500 ppm |
|---|
| IDLH (NIOSH) |
750 ppm |
|---|
| Excerpts from Documentation for IDLHs |
Other human data: Inhalation of 1,000 ppm for 6 minutes was associated with slight dizziness [Patty and Yant 1929]. Exposure to 5,000 ppm for 4 minutes produced complaints of nausea, a loss of appetite, vertigo, and incoordination [Patty and Yant 1929]. A 15�minute exposure to 5,000 ppm produced a state of intoxication characterized by uncontrolled hilarity in some individuals and in others a stupor lasting for 30 minutes after the exposure [Patty and Yant 1929]. |
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| Vapor Pressure |
46 mm Hg |
|---|
| Odor Threshold Low |
40 ppm |
|---|
| Odor Threshold High |
547 ppm |
|---|
| Lethal Concentration |
LC50 (rats) = 103,000 mg/m3/4H |
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| Explanatory Notes |
Detection odor threshold from AIHA (mean = 230 ppm); Flash point = -4 deg C; |
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| Flammability (NFPA) |
3: may ignite at ambient temperature |
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| Adverse Effects |
|---|
| Neurotoxin |
CNS Solvent Syndrome |
|---|
| Links to Other NLM Databases |
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| Health Studies |
Human Health Effects from Hazardous Substances Data Bank: HEPTANE
|
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