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Chemical Sampling Information (CSI)
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General Description

Synonyms: Delnav, Delnatex, Kavadel, Navadel, AC 528, Deltic, ENT 22879, Hercules AC528, Ruphos

OSHA IMIS Code Number: 2740

Chemical Abstracts Service (CAS) Registry Number: 78-34-2

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: TE3350000; 59191

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: NA2783

NIOSH Pocket Guide to Chemical Hazards, Dioxathion: chemical description, physical properties, potentially hazardous incompatibilities, and more

Chemical Description and Physical Properties:

tan liquid
molecular weight: 457
melting point: -20°C

Exposure Limits

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 0.1 mg/m3 TWA (Inhalable Fraction) (Vapor and Aerosol) (Skin); Appendix A4 (Not Classifiable as a Human Carcinogen); BEI

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 0.2 mg/m3 TWA (Skin)

Health Factors

Health Effects: Cholinesterase inhibition (HE6) LD50 (oral, rat) 20 mg/kg

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: OSHA Versatile Sampler (OVS-2) - 13 mm XAD-2 tube (270/140 mg sections, 20/60 mesh) with Glass Fiber filter enclosed
    analytical solvent: Toluene
    maximum volume: 480 Liters
    maximum flow rate: 1.0 L/min
    current analytical method: Gas Chromatography; GC/FPD
    method reference: 2 (OSHA In-House File)
    method classification: Partially Validated

Conditions: Toluene desorption; (45 meter x 0.2 mm i.d.) SE-54, 0.25 um thick + film; Inlet 250 deg oven 220-260 deg, FPD 250 deg; RT 2.96, 5.52,. & 7.18 min; DL 0.9 ng/injection, C/P YC

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