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Chemical Sampling Information (CSI)
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General Description

Synonyms: 2-Chloroethanal

OSHA IMIS Code Number: 0617

Chemical Abstracts Service (CAS) Registry Number: 107-20-0

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: AB2450000; 103

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: UN2232 Poison

Chemical Description and Physical Properties:

colorless liquid with a very sharp, irritating odor
molecular weight: 79
vapor pressure: 100 mm

Incompatibilities: oxidizers, acids, water

Exposure Limits

OSHA Permissible Exposure Limit (PEL):

General Industry: 1 ppm, 3 mg/m3 Ceiling

Construction Industry: 1 ppm, 3 mg/m3 Ceiling

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 1 ppm, 3.2 mg/m3 Ceiling

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 1 ppm Ceiling

Health Factors

Potential Symptoms: Skin, eye, mucous membrane irritation; skin burns; eye damage; pulmonary edema; skin, respiratory sensitization; narcosis, coma

Health Effects: Irritation-Eye, Nose, Throat, Skin---Marked (HE14) Lung edema (HE11)

Affected Organs: Eyes, skin, respiratory system

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: Silica Gel Tube (520/260 mg sections, 20/40 mesh)
    analytical solvent: Acetonitrile
    minimum time: 15 Minutes
    maximum flow rate: 0.5 L/min (Ceiling)
    current analytical method: Gas Chromatography; GC/ECD
    method reference: 2 (OSHA 76)
    sampling and analytical error: 0.13
    method classification: Fully Validated
    note: After receipt by laboratory, store samples in freezer until analysis.

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