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Ethion

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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 REL
TWA 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 Weight
384.5
Boiling Point
>302°F (Decomposes)
Freezing Point
10°F
Solubility
0.0001%
Vapor Pressure
0.0000015 mmHg
Ionization Potential
?
Specific Gravity
1.22
Flash Point
349°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