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Chemical Sampling Information (CSI)
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General Description

Synonyms: alpha-Chlorotoluene; Benzylchloride anhydrous; Benzylchloride, stabilized.

OSHA IMIS Code Number: 0340

Chemical Abstracts Service (CAS) Registry Number: 100-44-7

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: XS8925000; 82982

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: UN1738 156 Poison, Corrosive

Chemical Description and Physical Properties:

Colorless to slightly yellow liquid with a pungent, aromatic, irritating odor.
molecular weight: 127
boiling point: 354°F
vapor pressure: 0.9 mm
melting point: -39°F

Incompatibilities: Active metals: copper, aluminum, magnesium, iron, zinc, tin, strong oxidizers

Exposure Limits

OSHA Permissable Exposure Limit (PEL):

    General Industry: 1 ppm, 5 mg/m3

    Construction Industry: 1 ppm, 5 mg/m3 TWA

American Conference of Governmental Industrial Hygenists (ACGIH) Threshold Limit Value (TLV): 1 ppm, 5.2 mg/m3 TWA; Appendix A3 (Confirmed Animal Carcinogen with Unknown Relevance to Humans)

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 1 ppm Ceiling (15 min)

Health Factors

Carcinogenic Classification:

International Agency for Research on Cancer (IARC): alpha-Chlorinated Toluenes - Group 2B, possibly carcinogenic to humans

Potential Symptoms: Eye, nose irritation; weakness; irritability; headaches; skin eruption; pulmonary edema

Health Effects: Suspect Carcinogen (HE2); Acute lung edema (HE11); Irritation-Eyes, Nose, Throat, Skin---Marked (HE14)

Affected Organs: Eyes, respiratory system, 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 1003 [113 KB PDF, 7 pages])
    sampling and analytical error: 0.16
    method classification: Partially Validated

Secondary Laboratory Sampling/Analytical Method (SAM2):

  • device: Detector Tube
    company: Gastec
    part #: 132L
    range: 0.5-25 ppm
    method classification: Mfg

  • device: Instrumentation
    company: Infrared Spectrophotometer
    part #: MIRAN 1A & 1B
    range: 2.5 ppm @ 9.4 um
    method classification: Mfg
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