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Ethion																				Related Pages
Synonyms & Trade Names
			O,O,O',O'-Tetraethyl S,S'-methylene di(phosphorodithioate)
CAS No.
			563-12-2
	RTECS No.
			TE4550000
	DOT ID & Guide

Formula[(C2H5O)2P(S)S]2CH2
	Conversion
	IDLH
			N.D.See: IDLH INDEX

Exposure Limits
			NIOSH RELTWA 0.4 mg/m3 [skin]
					OSHA PEL none See Appendix G
	Measurement Methods
			**NIOSH** 5600
					
					See: NMAM or OSHA Methods
										
Physical Description
			Colorless to amber-colored, odorless liquid.
					[insecticide] [Note: A solid below 10°F. The technical product has a very disagreeable odor.]													
										
Molecular Weight384.5	
	Boiling Point>302°F (Decomposes)
	Freezing Point10°F
	Solubility0.0001%
	Vapor Pressure0.0000015 mmHg
	Ionization Potential?											
Specific Gravity1.22	
	Flash Point349°F
	Upper Explosive Limit?
	Lower Explosive Limit?
Class IIIB Combustible Liquid: Fl.P. at or above 200°F.
Incompatibilities & Reactivities
			Acids, alkalis
Exposure Routes
			inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
			irritation eyes, skin; nausea, vomiting, abdominal cramps, diarrhea, salivation; headache, dizziness, lassitude (weakness, exhaustion); rhinorrhea (discharge of thin nasal mucus), chest tightness; blurred vision, miosis; cardiac irreg; muscle fasciculation; dyspnea (breathing difficulty)
Target Organs
			Eyes, skin, respiratory system, central nervous system, cardiovascular system, blood cholinesterase
										
Personal Protection/Sanitation
			(See protection codes) **Skin:**Prevent skin contact
							**Eyes:**Prevent eye contact
							**Wash skin:**When contaminated
							**Remove:**When wet or contaminated
							**Change:**Daily
							**Provide:**Eyewash, Quick drench
	First Aid
			(See procedures)**Eye:**Irrigate immediately
							**Skin:**Soap wash immediately
							**Breathing:**Respiratory support
							**Swallow:**Medical attention immediately
Respirator Recommendations
			Not available.
				Important additional information about respirator selection
See also
			INTRODUCTION
					  ICSC CARD: 0888

			
							

			Page last reviewed:  October 30, 2019						Content
							source: 	National Institute for Occupational Safety and Health NIOSH Pocket Guide to Chemical Hazards
Introduction
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Chemical Names, Synonyms and Trade Names
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E
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G
H
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M
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CAS Numbers
RTECS Numbers
Appendices
A – NIOSH Potential Occupational Carcinogens
B – Thirteen OSHA-Regulated Carcinogens
C – Supplementary Exposure Limits
D – Substances with No Established RELs
E – OSHA Respirator Requirements for Selected Chemicals
F – Miscellaneous Notes
G – 1989 Air Contaminants Update Project: Exposure Limits NOT in Effect
Type C & CE – Definitions for Type C and Type CE Respirators
Personal Protection and Sanitation Codes
First Aid Procedures Follow NIOSH Facebook
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