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Chemical Sampling Information (CSI)
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General Description

Synonyms: 2,4-Bis(tert-butyl)phenol

OSHA IMIS Code Number: B750

Chemical Abstracts Service (CAS) Registry Number: 96-76-4

Chemical Description and Physical Properties:

off-white/yellow crystalline solid; does not mix with water
molecular weight: 206.33
vapor pressure: 0.133 KPa @84.5°C
molecular formula: [(CH3)3 C]2 C6H3 OH
boiling point: 265°C
melting point: 55°C
flash point: 115°C

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: OSHA Versatile Sampler (OVS-7) - 13 mm XAD-7 tube (270/140 mg sections, 20/60 mesh) with Glass Fiber Filter enclosed
    analytical solvent: Methanol
    maximum volume: 100 Liters
    maximum flow rate: 1.0 L/min
    current analytical method: Gas Chromatography; GC/FID
    method reference: (OSHA In-house File)
    method classification: Not Validated

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