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Chemical Sampling Information |
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| Crag® Herbicide (Total Dust) |
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General Description
Synonyms: Sesone; Sodium 2,4-dichlorophenoxyethyl sulphate; 2-(2,4-Dichlorophenoxy)ethyl sodium sulfate; Disul-sodium; Sodium 2,4-Dichlorophenyl Cellosolve Sulfate; Ethanol, 2-(2,4-dichlorophenoxy) - , hydrogen sulfate, sodium salt
OSHA IMIS Code Number: 0737
Chemical Abstracts Service (CAS) Registry Number: 136-78-7
NIOSH, Registry of Toxic Effects (RTECS) Identification Number: KK4900000
Department of Transportation Regulation Number (49 CFR 172.101) and Guide:
NIOSH Pocket Guide to Chemical Hazards, Crag® Herbicide: chemical description, physical properties, potentially hazardous incompatibilities, and more
Exposure Limits
OSHA Permissible Exposure Limit (PEL) for General Industry: 29 CFR 1910.1000 Z-1 Table -- 15 mg/m3 TWA
OSHA Permissible Exposure Limit (PEL) for Maritime: 29 CFR 1915.1000 Table Z-Shipyards -- 15 mg/m3 TWA
American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 10 mg/m3 TWA; Appendix A4 - Not Classifiable as a Human Carcinogen (TLV listed under Sesone)
National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 10 mg/m3 TWA
Health Factors
NIOSH Immediately Dangerous To Life or Health Concentration (IDLH): 500 mg/m3
Potential symptoms: Irritation of eyes, skin, respiratory tract; cough, sore throat; liver, kidney damage; in animals: CNS effects, convulsions; INGES. ACUTE: Burning sensation.
Health Effects: Cumulative liver damage (HE3); LD50 (oral, rat) 480-730 mg/kg
Affected organs: Eyes, skin, CNS, liver, kidneys.
Note: Crag herbicide is metabolized in the body to 2,4-dichlorophenoxyacetic acid (2,4-D), a member of the chlorophenoxy herbicide group.
Date Last Revised: 09/19/2005
Literature Basis:
- NIOSH Pocket Guide to Chemical Hazards: Crag® Herbicide.
- International Chemical Safety Cards (WHO/IPCS/ILO): Disul-sodium.
- Bradberry, S.M., Proudfoot, A.T. and Vale, J.A.: Poisoning due to chlorophenoxy herbicides. Toxicol. Rev. 23(2): 65-73, 2004.
- Pohanish, R.P. (editor): 2,4-DES-Sodium. In, Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 1. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 756-758.
Monitoring Methods used by OSHA
Laboratory Sampling/Analytical Method:
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sampling media: Mixed Cellulose Ester Filter (MCEF) 0.8 microns
maximum volume: 90 Liters maximum flow rate: 1.5 L/min
current analytical method: Colorimetric
method reference: NIOSH Analytical Method (NIOSH S-356)
method classification: Fully Validated
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Page last updated: 04/06/2006
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