DODECYLMERCAPTAN
CAS # | 112-55-0 |
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Formula |
C₁₂H₂₆S |
Synonyms |
1-dodecyl mercaptan; n-dodecyl mercaptan; lauryl mercaptan; n-lauryl mercaptan; 1-mercaptododecane |
Physical description | Colorless, water-white, or pale-yellow, oily liquid with a mild, skunk-like odor. | ||
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Boiling point | 441-478°F | Molecular weight | 202.4 |
Freezing point/melting point | 19°F | Vapor pressure | 3 mmHg |
Flash point | 190°F (open cup) | Vapor density | >1 |
Specific gravity | 0.85 | Ionization potential | |
Lower explosive limit (LEL) | Upper explosive limit (UEL) | ||
NFPA health rating | 2 | NFPA fire rating | 1 |
NFPA reactivity rating | 0 | NFPA special instruction | |
Vapor hazard ratio (VHR) | |||
Historical exceedance percentage | |||
Target organs |
Analyte code (IMIS no.) | |||
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Sampling group | |||
Sampler/Sampling media | |||
Sampling time* | |||
Sampling volume (TWA)* | |||
Sampling flow rate (TWA)* | |||
Sampling volume (STEL/Peak/C)* | |||
Sampling flow rate (STEL/Peak/C)* | |||
Analytical method instruments | |||
Method reference | |||
Notes | |||
Special requirements |
* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.
Wipe Sampler/Sampling media | |
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Bulk Method |
Device | |||||
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Model/Type | |||||
Sampling information (see manufacturer instructions) |
OSHA PEL
8-hour TWA (ST) STEL (C) Ceiling Peak |
NIOSH REL
Up to 10-hour TWA (ST) STEL (C) Ceiling |
ACGIH TLV©
8-hour TWA (ST) STEL (C) Ceiling |
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PEL-TWA | REL-TWA | TLV-TWA |
0.1 ppm [2001] |
PEL-TWA | |||
PEL-STEL | REL-STEL | TLV-STEL | PEL-STEL | ||||
PEL-C | REL-C |
0.5 ppm (4.1 mg/m³) [15 minutes] |
TLV-C | PEL-C | |||
Skin notation |
NA |
Skin notation |
N |
Skin notation |
N |
Skin notation |
NA |
Notes:
Not established |
Notes: |
Notes:
dermal sensitization (DSEN) |
Notes:
Not established |
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Health factors: See NIH-NLM PubChem. | IDLH | ||||||
Carcinogenic classifications: Not listed | Notes: | ||||||
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: |
Additional Resources and Literature References
NOAA: CAMEO Chemicals - Lauryl mercaptan NIOSH: Pocket Guide to Chemical Hazards - 1-Dodecanethiol Literature References
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Last Updated Date : 12/28/2020