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Cas Database

Name	Ethion	EINECS	N/A
CAS No.	563-12-2	Density	1.22
PSA	171.32000	LogP	6.30650
Solubility	2 mg l-1 (25 °C)	Melting Point	3oC
Formula	C9H22 O4 P2 S4	Boiling Point	125(0.0013kPa)
Molecular Weight	384.483	Flash Point	196.5oC
Transport Information	N/A	Appearance	yellow to beige crystalline powder
Safety	Poison by ingestion, skin contact, and intraperitoneal routes. Human systemic effects by ingestion: flaccid paralysis without anesthesia, motor activity changes, fever, and inhibition of cholinesterase. When heated to decomposition it emits highly toxic fumes of SO_x and PO_x. See also PARATHION.	Risk Codes	21-25-50/53
Molecular Structure		Hazard Symbols	Cholinesterase inhibitor, use may be restricted. TLV: 0.4 mg/m³.
Synonyms	Phosphorodithioicacid, S,S'-methylene O,O,O',O'-tetraethyl ester (8CI,9CI); Diethion; ENT24,105; Ethiol 100; Ethion; Ethopaz; Ethyl methylene phosphorodithioate([(EtO)2P(S)S]2CH2); Fosfatox E; Hylemax; Hylemox; Match; Niagara 1240;Nialate; O,O,O',O'-Tetraethyl S,S'-methylene bis(phosphorodithioate);Phosphotox E; RP 8167; Rhodocide; Rodocid; Rodocide; Tetraethyl S,S'-methylenebis(phosphorothiolothionate); Tomahawk	Article Data	13

Ethion Chemical Properties

Chemical Name: Ethion
IUPAC NAME: Diethoxyphosphinothioylsulfanylmethylsulfanyl-diethoxy-
sulfanylidene-$l^{5}-phosphane
CAS No.: 563-12-2
EINECS: 209-242-3
RTECS: TE4550000
Molecular Formula: C₉H₂₂O₄P₂S₄
Molecular Weight: 384.48 g/mol
Density: 1.305 g/cm³
Flash Point: 196.5 °C
Boiling Point: 401.2 °C at 760 mmHg
Storage temp.: 0-6°C
Ethion (563-12-2) is a colorless or amber colored liquid with a disagreeable odor.It is a wettable emulsifiable liquid.and it is toxic by inhalation, skin absorption, and/or ingestion.It burns, but is not easily ignited.Following is the structure:

Product Categories about Ethion (563-12-2) are Insedticide ; AcaricidesPesticides&Metabolites ; Alpha sort ; E ; E-GAlphabetic ; EQ - EZPesticides ; Insecticides ; Organophorous ; Pesticides ; Pesticides&Metabolites ; AcaricidesAlphabetic
The chemical synonymous of Ethion (563-12-2) are Bis(S-(Diethoxyphosphinothioyl)mercapto)methane ; Diethion ; Embathion ; Ent 24,105 ; Ent24,105 ; Ethanox ; Ethiol100 ; Ethion mixture

Ethion Uses

Hazard Codes:
T: Toxic
N: Dangerous for the environment
Risk Statements about Ethion (563-12-2):
R21 Harmful in contact with skin.
R25 Toxic if swallowed.
R50/53: Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements about Ethion (563-12-2):
S23 Do not breathe vapour.
S25 Avoid contact with eyes.
S45 In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S60 This material and its container must be disposed of as hazardous waste.
S61 Avoid release to the environment. Refer to special instructions / safety data sheets.
S36/37: Wear suitable protective clothing and gloves.

Ethion Toxicity Data With Reference

1.	orl-inf TDLo:15,700 µg/kg:CNS,PNS,MET	TXMDAX Texas Medicine. 63 (1967),71.
2.	orl-hmn TDLo:100 µg/kg:BIO	TXAPA9 Toxicology and Applied Pharmacology. 22 (1972),286.
3.	orl-rat LD50:13 mg/kg	PHJOAV Pharmaceutical Journal. 185 (1960),361.
4.	ihl-rat LC50:864 mg/m³	FMCHA2 Farm Chemicals Handbook .(Meister Publishing,Willoughy, OH.: )1991,C128.
5.	skn-rat LD50:62 mg/kg	TXAPA9 Toxicology and Applied Pharmacology. 14 (1969),515.
6.	ipr-rat LD50:26 mg/kg	PSEBAA Proceedings of the Society for Experimental Biology and Medicine. 129 (1968),699.
7.	orl-mus LD50:40 mg/kg	85DPAN Wirksubstanzen der Pflanzenschutz und Schadlingsbekampfungsmittel Werner Perkow,Berlin, Germany.: Verlag Paul Parey,1971/76.
8.	ipr-mus LD50:35 mg/kg	PSEBAA Proceedings of the Society for Experimental Biology and Medicine. 129 (1968),699.
9.	skn-rbt LD50:890 mg/kg	TobJS# Personal Communication to the Editor, Toxic Substances List from Dr. J.S. Tobin, Director, Health and Safety, FMC Corporation, New York, NY 14103, November 9, 1973 9NOV73 .

Ethion Consensus Reports

EPA: Farm Worker Field Reentry FEREAC Federal Register. 39 (1974),16888. . EPA Genetic Toxicology Program. EPA Extremely Hazardous Substances List.

Ethion Safety Profile

Poison by ingestion, skin contact, and intraperitoneal routes. Human systemic effects by ingestion: flaccid paralysis without anesthesia, motor activity changes, fever, and inhibition of cholinesterase. When heated to decomposition it emits highly toxic fumes of SO_x and PO_x. See also PARATHION.

Ethion Standards and Recommendations

OSHA PEL: TWA 0.4 mg/m³ (skin)
ACGIH TLV: TWA 0.05 mg/m³ (skin); Not Classifiable as a Human Carcinogen

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