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Chemical Sampling Information (CSI)
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General Description

Synonyms: 2,4,6-Trihydroxy-1,3,5-triazine; Isocyanuric Acid; 1,3,5-Triazine-2,4,6(1H,3H,5H)-trione

OSHA IMIS Code Number: R216

Chemical Abstracts Service (CAS) Registry Number: 108-80-5

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: DO4562000; 19713

molecular weight: 129.08
molecular formula: C3H3N3O3
melting point: >330°C

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: Polyvinyl Chloride (PVC) Filter 5 micron
    analytical solvent: 5:95 Methanol:Water (10 minutes in sonic bath)
    maximum volume: 1000 L
    maximum flow rate: 3 L/min
    current analytical method: High Performance Liquid Chromatography; HPLC/UV
    method reference: 1 (NIOSH 5030 [26 KB PDF, 4 pages])
    method classification: Partially Validated
    note: Trichloroisocyanuric acid will interfere because it reacts with water to form cyanuric acid.

Conditions: Column: C18 Mobile Phase: 0.005 M Na2HPO4 5:95 Methanol:Water Detector: 225 nm

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