Agent Name

n-Butyl alcohol

Alternative Name

n-Butanol

CAS Number

71-36-3

Formula

C4-H10-O

Major Category

Solvents

Synonyms

n-Butanol; 1-Butanol; 1-Butyl alcohol; 1-Hydroxybutane; Alcool butylique [French]; Butanol; Butanol [French]; Butanolen [Dutch]; Butanolo [Italian]; Butyl alcohol; Butyl alcohol (natural); Butyl hydroxide; Butylowy alkohol [Polish]; Butyric alcohol; Butyric or normal primary butyl alcohol; CCS 203; Hemostyp; Methylolpropane; Normal primary butyl alcohol; Propylcarbinol; Propylmethanol; n-Butan-1-ol; n-Butanol; [ChemIDplus]

Category

Alcohols (<C12)

Description

Colorless liquid with a strong, characteristic, mildly alcoholic odor; [NIOSH]

Sources/Uses

Used as a solvent and chemical intermediate; [ACGIH]

Comments

A skin, eye, and respiratory tract irritant; Inhalation of high concentrations can cause CNS depression; [ICSC]

Reference Link

NIOSH Occupational Health Guidelines for Chemical Hazards: n-Butyl alcohol

Exposure Assessment
Skin Designation (ACGIH)

No

TLV (ACGIH)

20 ppm

PEL (OSHA)

100 ppm

MAK

100 ppm

IDLH (NIOSH)

1400 ppm

Excerpts from Documentation for IDLHs

Basis for original (SCP) IDLH: The chosen IDLH is conservative, but the only data available on which to base the IDLH is the statement by Patty [1963] that Smyth [1956] found rats survived when exposed for 4 hours to 8,000 ppm. The IDLH for isobutyl alcohol is also 8,000 ppm. . . . Human data: It has been reported that corneal irritation was occasionally observed in workers exposed to 200 ppm [Sterner et al. 1949].

Vapor Pressure

6 mm Hg

Odor Threshold Low

0.12 ppm

Odor Threshold High

11 ppm

RD50

4784 ppm

Lethal Concentration

LC50 (rat) = 8,000 ppm/4H

Explanatory Notes

IDLH is 10% LEL (lower explosive limit); Detection odor threshold from AIHA (mean = 1.2 ppm); Flash point = 37 deg C;

Adverse Effects
Neurotoxin

CNS Solvent Syndrome

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

Search ChemIDplus

Biomedical References

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: