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Chemical Sampling Information (CSI)
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General Description

Synonyms: 2-Pentanol acetate; 1-Methylbutyl acetate; Acetic acid, 2-pentyl ester

OSHA IMIS Code Number: 0191

Chemical Abstracts Service (CAS) Registry Number: 626-38-0

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: AJ2100000; 54750

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: UN1104 129 Flammable Liquid

Chemical Description and Physical Properties:

clear, colorless liquid with a fruity odor
molecular weight: 130
boiling point: 273F
vapor pressure: 7 mm
melting point: -148F

Incompatibilities: Nitrates; strong oxidizers, alkalies, and acids

Exposure Limits

OSHA Permissable Exposure Limit (PEL):

    General Industry: 125 ppm, 650 mg/m3

    Construction Industry: 125 ppm, 650 mg/m3 TWA

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 125 ppm, 665 mg/m3 TWA

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 125 ppm TWA

Health Factors

Potential Symptoms: Eye, nose irritation; narcosis; dermatitis

Health Effects: Irritation-Eye, Nose, Throat---Moderate (HE15) CNS Depression (HE7) LD50 (oral, rat) 3670 mg/kg

Affected Organs: Respiratory system, eyes, skin

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: Charcoal Tube (100/50 mg sections, 20/40 mesh)
    analytical solvent: Carbon Disulfide
    maximum volume: 10 Liters
    maximum flow rate: 0.2 L/min
    current analytical method: Gas Chromatography; GC/FID
    method reference: 1 (NIOSH 1450 [107 KB PDF, 6 pages])
    sampling analytical error: 0.12
    method classification: Partially Validated
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