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Chemical Sampling Information (CSI)
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General Description

Synonyms: Sesone; Sodium 2,4-dichlorophenoxyethyl sulphate; Disul-sodium; Sodium 2,4-Dichlorophenyl Cellosolve Sulfate

OSHA IMIS Code Number: C149

Chemical Abstracts Service (CAS) Registry Number: 136-78-7

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: KK4900000

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

Chemical Description and Physical Properties:

Colorless, odorless solid
molecular weight: 309
vapor pressure: approx. 0 mm

Incompatibilities: Strong oxidizers


Exposure Limits

OSHA Permissible Exposure Limit (PEL):

General Industry: 15.0 mg/m3

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 5 mg/m3 TWA


Health Factors

Health Effects: Cumulative liver damage (HE3); LD50 (oral, rat) 730 mg/kg


Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: Mixed Cellulose Ester Filter (MCEF) 0.8 microns preceded by 10 mm Nylon Cyclone
    maximum volume: 153 Liters
    maximum flow rate: 1.7 L/min
    analytical 1: Colorimetric
    method reference: 1 (NIOSH S-356)
    sampling and analytical error: 0.09
    method classification: Fully Validated

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