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Chemical Sampling Information (CSI)
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General Description

Synonyms: Benzene-1,2-Dicarboxylic Acid; 1,2-Benzenecarboxylic Acid; o-Phthalic Acid; o-Dicarboxybenzene

OSHA IMIS Code Number: P198

Chemical Abstracts Service (CAS) Registry Number: 88-99-3

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: TH9625000; 59763

Chemical Description and Physical Properties:

molecular weight: 166.14
molecular formula: C8H6O4
melting point: approx 230°C

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: Charcoal Tube (100 mg/50 mg; 20/40 mesh)
    analytical solvent: Ethanol: Water (50:50)
    maximum volume: 10 Liters
    maximum flow rate: 0.2 L/min
    current analytical method: High Performance Liquid Chromatography; HPLC
    method reference: 2 (OSHA In-House File)
    method classification: Not Validated

Conditions: Column: CN Mobile Phase: 50:50:0.1 Acetonitrile: Water: H3PO4 Detector: 254 or 280 nm

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