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Chemical Sampling Information (CSI)
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General Description

Synonyms: Imidan; Prolate; R-1504; Phosphorodithioic acid s-((1,3- dihydro-1.3-dioxo-2H-isondol-2-yl) methyl)-o-o-dimethylester

OSHA IMIS Code Number: 2075

Chemical Abstracts Service (CAS) Registry Number: 732-11-6

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: TE2275000; 59180

Chemical Description and Physical Properties:

off-white, crystalline solid
melting point: 66.5-69.5°C VP(50°C): 0.001 mm

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: Glass Fiber Filter (37 mm)
    analytical solvent: 120 Liters
    maximum volume: 1.0 L/min
    current analytical method: High Performance Liquid Chromatography; HPLC/U
    method reference: 2 (OSHA In-House File)
    method classification: Not Validated

Conditions: Methanol extraction; Nucleosil C18; 75% Methanol 25% water 0.1% H3PO4; 1 mL/min; UV Det: 254, 280; Retention time, 8 min; DL 62 ng/inj; C/P DL 2/83

Bulk Method:

  • Limit the amount of bulk submitted to one gram or one mL

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