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Chemical Sampling Information (CSI)
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General Description

Synonyms: 2-Aminoaniline; o-Benzenediamine; 1,2-Benzenediamine; Orthamine; o-Diaminobenzene; 1,2-Diaminobenzene; 1,2-Phenylenediamine

OSHA IMIS Code Number: P245

Chemical Abstracts Service (CAS) Registry Number: 95-54-5

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: SS7875000; 57570

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: UN1673 Poison Keep Away From Food

Chemical Description and Physical Properties:

moleecular weight: 108.16
molecular formula: C6H8N2

Exposure Limits

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 0.1 mg/m3 TWA; Appendix A3 (Confirmed Animal Carcinogen with Unknown Relevance to Humans)

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: Coated Glass Fiber Filters (37 mm) in 3 piece cassette. Coating is Sulfuric Acid.
    analytical solvent: EDTA Solution
    maximum volume: 100 Liters  
    maximum flow rate:
    1.0 L/min
    current analytical method: High Performance Liquid Chromatography; HPLC/UV
    method reference: 2 (OSHA 87)
    sampling and analytical error: 0.13
    method classification: Fully Validated
    note: Filters may be obtained by OSHA personnel from the Salt Lake Technical Center.

Conditions: Column: C18 Mobile Phase: 95/5 H2O/ACN 0.05 M Sodium Phosphate @ pH 7 Detector Wavelength: 240 nm Detection Limit: 0.3 ug

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