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Benzophenonetetracarboxylic Acid Dianhydride

General Description

  • Synonyms: 5,5'-Carbonylbis-1,3-Isobenzofurandione; BTDA; Benzophenonetetracarboxylic Dianhydride
  • OSHA IMIS Code Number: B727
  • Chemical Abstracts Service (CAS) Registry Number: 2421-28-5
  • Chemical Description and Physical Properties:
    • molecular formula: C17H6O7

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • Midget Impinger Containing 15 mL of 0.1 N NaOH
  • maximum volume: 60 Liters
  • maximum flow rate: 1.0 L/min
  • current analytical method: High Performance Liquid Chromatography; HPLC
  • method reference: PV2159 (Call SLTC for more information)
  • method classification: Partially Validated

column: C18 mobile phase: 24:76:0.15 Acetonitrile:Water:H3PO4 detector wavelength: 225 or 265nm detection limit: 0.027 mg/m3

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