Hazard search

Butanethiol

CAS number
109-79-5
Also known as
1-Butanethiol · 1-Butanethiol (butyl mercaptan) · 1-Mercaptobutane · n-Butyl mercaptan · n-Butyl mercaptan (mercaptans)

UK workplace exposure limits

Our data hold no UK limit for this substance.

Sampling methods

MethodSamplingMedium AnalysisPart numbers
NIOSH 2525
n-Butyl mercaptan by GC-FPD
Method document (opens in a new tab)
Active (pump) Chromosorb 104 tube (150/75mg) GC-FPD
NIOSH 2542
Mercaptans by GC-FPD
Method document (opens in a new tab)
Active (pump) Coated glass fibre filter in preloaded cassette GC-FPD 225-9007
225-1
Non-agency
Mercaptans by Colorimetric analysis
Direct-reading Gastec detector tube 810-70L

Methods and limits as published by their agencies and summarised by SKC; check the current method and the limit that applies to you before sampling.

Source: SKC Ltd (UK), Hazard Search, used with SKC's permission (opens in a new tab); SKC Inc. (USA), Sampling Guides, used with SKC's permission (opens in a new tab)