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Substance Name: Acetylene
RN: 74-86-2
UNII: OC7TV75O83
InChIKey: HSFWRNGVRCDJHI-UHFFFAOYSA-N
Note
- The simplest two carbon alkyne with the formula HCCH.
Molecular Formula
- C2-H2
Molecular Weight
- 26.0378
- All
- Classifications
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- Names & Synonyms
- Registry Numbers
- Structure Descriptors
- Toxicity
- Physical Properties
Classification Codes
Classification Code
- Human Data
Superlist Classification Code
- Simple Asphyxiant
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Links to Resources
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Names and Synonyms
Name of Substance
- Acetylene
MeSH Heading
- Acetylene
Synonyms
- Acetylen
- Acetylene
- EC 200-816-9
- EINECS 200-816-9
- Ethine
- Ethyne
- HSDB 166
- Narcylen
- UNII-OC7TV75O83
Systematic Names
- Acetylene
- Ethyne
Superlist Names
- Acetylene
- Acetylene, dissolved
- Acetylene, dissolved [UN1001] [Flammable gas]
- Ethyne
- UN1001
Registry Numbers
CAS Registry Number
- 74-86-2
FDA UNII
- OC7TV75O83
Other Registry Number
- 57113-74-3
System Generated Number
- 0000074862
Structure Descriptors
InChI
1S/C2H2/c1-2/h1-2HInChIKey
HSFWRNGVRCDJHI-UHFFFAOYSA-NSmiles
C#CToxicity
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| human | LCLo | inhalation | 50pph/5M (500000ppm) | Tabulae Biologicae. Vol. 3, Pg. 231, 1933. | |
| human | TCLo | inhalation | 20pph (200000ppm) | BEHAVIORAL: HEADACHE LUNGS, THORAX, OR RESPIRATION: DYSPNEA | "Toxicology of Drugs and Chemicals," Deichmann, W.B., New York, Academic Press, Inc., 1969Vol. -, Pg. 67, 1969. |
| mammal (species unspecified) | LCLo | inhalation | 50pph/5M (500000ppm) | Naunyn-Schmiedeberg's Archiv fuer Experimentelle Pathologie und Pharmakologie. Vol. 138, Pg. 65, 1928. |
Physical Properties
| Physical Property | Value | Units | Temp (deg C) | Source |
|---|---|---|---|---|
| Melting Point | -8.07E+01 | deg C | EXP | |
| Boiling Point | -8.47E+01 | deg C | EXP | |
| log P (octanol-water) | 0.37 | (none) | EXP | |
| Water Solubility | 1200 | mg/L | 20 | EXP |
| Vapor Pressure | 5240 | mm Hg | 25 | EXP |
| Henry's Law Constant | 0.022 | atm-m3/mole | 25 | EST |
| Atmospheric OH Rate Constant | 8.15E-13 | cm3/molecule-sec | 25 | EXP |
Physical property data is provided to ChemIDplus by SRC, Inc.