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n-Butyl Alcohol

General Description

Synonyms: n-Butanol; Butyl alcohol; 1-Butanol; Propylcarbinol; BA

OSHA IMIS code: 0460

CAS number: 71-36-3

Exposure Limits and Health Effects (Updated September 6, 2012)

Standard Set By Exposure Limit Health Effect Codes -- Health Effects and Target Organs
OSHA PEL - General Industry
See 29 CFR 1910.1000 Table Z-1
100 ppm (300 mg/m3) TWA
HE15 -- eye, skin, nose, and upper respiratory irritation
OSHA PEL - Construction Industry
See 29 CFR 1926.55 Appendix A
100 ppm (300 mg/m3) TWA
HE15 -- eye, skin, nose, and upper respiratory irritation
OSHA PEL - Shipyard Employment
See 29 CFR 1915.1000 Table Z - Shipyards
100 ppm (300 mg/m3) TWA
HE15 -- eye, skin, nose, and upper respiratory irritation
NIOSH REL 50 ppm (150 mg/m3) Ceiling
Skin
HE4 -- corneal inflammation, blurred vision
HE7 -- headache, dizziness, drowsiness
target organs: brain, CNS
HE15 -- eye, nose, and throat irritation; dermatitis
ACGIH TLV® (1998) 20 ppm (61 mg/m3) TWA HE15 -- eye, skin, nose, and upper respiratory irritation
CAL/OSHA PELs 50 ppm (150 mg/m3) Ceiling
Skin
 

Carcinogenic classification:

EPA Inhalation Reference Concentration (RfC): Not established

ATSDR Inhalation Minimal Risk Levels (MRLs): Not established

NIOSH IDLH concentration: 1,400 ppm (10% LEL)

Notes on other potential health effects and hazards:

  1. At temperatures above 29°C, explosive vapor/air mixtures may be formed (NIOSH/IPCS 2005).
  2. While the systemic toxicity of n-butyl alcohol itself is low, it may potentiate the toxicity of other compounds, such as carbon tetrachloride, to become a hepatotoxin (ACGIH 2002).

Partial reference list:

  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - n-Butanol. 2016.
  • NIOSH: Occupational Safety and Health Guideline for n-Butyl Alcohol. 1992.
  • NIOSH/CEC/IPCS: International Chemical Safety Cards - 1-Butanol. April 19, 2005.

Chemical Sampling Information

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