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Chemical Sampling Information (CSI)
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General Description

Synonyms: Octyl Mercaptan; 1-Mercaptooctane; Octyl Thiol; n-Octanethiol; Octanethiol

OSHA IMIS Code Number: O107

Chemical Abstracts Service (CAS) Registry Number: 111-88-6

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: 1228 131

NIOSH Pocket Guide to Chemical Hazards, 1-Octanethiol: Chemical description, physical properties, potentially hazardous incompatibilities, and more

Chemical Description and Physical Properties:
molecular weight: 146.30
boiling point:
199.1°C
molecular formula:
C8H18S
Exposure Limits

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 0.5 ppm ceiling

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • sampling media: Tenax-GC (100/50 mg sections, 60/80 mesh)
    analytical solvent: Acetone
    maximum volume: 15 Liters  
    maximum flow rate:
    0.05 L/min
    current analytical method: Gas Chromatography; GC/FPD
    method reference: 1 (NIOSH 2510) [20 KB PDF, 3 pages]
    sampling and analytical error: 0.14
    method classification: Partially Validated
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Page last updated: 07/07/1992

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