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Chemical Sampling Information (CSI)
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General Description

Synonyms: phthalic acid, dihexyl ester branched and linear

OSHA IMIS Code Number: D940

Chemical Abstracts Service (CAS) Registry Number: 68515-50-4

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: T11100000

Chemical Description and Physical Properties:

molecular weight: 334
specific gravity: 1.005
molecular formula: C20H30O4
flash point: 380°F (CC) (193°C)
melting point: -33°C

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: OSHA Versatile Sampler-Tenax tubes (13 mm Tenax tube (140/70 mg sections) with a glass fiber filter enclosed)
    analytical solvent: Toluene
    maximum volume: 240 Liters
    maximum flow rate: 1 L/min
    current analytical method: Gas Chromatography; GC/FID
    method reference: 2 (OSHA PV2076)
    method classification: Partially Validated

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