ETHION

International Chemical Safety Cards

ETHION

ICSC: 0888

ETHION
Diethion
O,O,O',O'-Tetraethyl S,S'-methylene bis (phosphorodithioate)
C₉H₂₂O₄P₂S₄
Molecular mass: 384.5
CAS # 563-12-2
RTECS # TE4550000
ICSC # 0888
UN # 3018
EC # 015-047-00-2

TYPES OF HAZARD/ EXPOSURE	ACUTE HAZARDS/ SYMPTOMS	PREVENTION	FIRST AID/ FIRE FIGHTING
FIRE	Combustible. Liquid formulations containing organic solvents may be flammable. Gives off irritating or toxic fumes (or gases) in a fire.	NO open flames.	Foam, powder, carbon dioxide.
EXPLOSION	The explosion hazard will depend on the solvent used in the formulation or on the characteristics of the dust.

EXPOSURE		STRICT HYGIENE! AVOID EXPOSURE OF ADOLESCENTS AND CHILDREN!	IN ALL CASES CONSULT A DOCTOR!
INHALATION	Convulsions. Dizziness. Laboured breathing. Nausea. Unconsciousness. Vomiting. Pupillary constriction, muscle cramp, excessive salivation.	Ventilation, local exhaust, or breathing protection.	Fresh air, rest. Refer for medical attention.
SKIN	MAY BE ABSORBED! (Further see Inhalation).	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
EYES		Face shield, or eye protection in combination with breathing protection.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
INGESTION	Abdominal cramps. Diarrhoea. Laboured breathing. Nausea. Unconsciousness. Vomiting. Pupillary constriction, muscle cramps, excessive salivation.	Do not eat, drink, or smoke during work.	Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Rest. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT wash away into sewer. (extra personal protection: complete protective clothing including self-contained breathing apparatus).

Separated from food and feedstuffs, strong bases, strong acids. Well closed.

Do not transport with food and feedstuffs.
T symbol
R: 23/24/25
S: 2-13-44
UN Hazard Class: 6.1
UN Packing Group: II
Severe marine pollutant.

SEE IMPORTANT INFORMATION ON BACK

ICSC: 0888

Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993

International Chemical Safety Cards

ETHION

ICSC: 0888

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PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID

PHYSICAL DANGERS:

CHEMICAL DANGERS:
The substance decomposes on heating or on burning producing toxic and corrosive fumes including phosphorous oxides and sulfur oxides. The substance slowly oxidizes in air and is hydrolyzed by acids and alkalies.

OCCUPATIONAL EXPOSURE LIMITS (OELs):
TLV: ppm; 0.4 mg/m³ (skin) (ACGIH 1991-1992).

ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol, through the skin, by ingestion.

INHALATION RISK:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly on spraying.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance may cause effects on the nervous system , resulting in convulsions, respiratory failure. Cholinesterase inhibitor. Exposure at high level may result in death. The effects may be delayed. Medical observation is indicated.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Cholinesterase inhibitor; cumulative effect is possible: see acute hazards/symptoms.

PHYSICAL
PROPERTIES

Melting point: -15/-12°C
Relative density (water = 1): 1.22
Solubility in water: poor

Vapour pressure, Pa at 25°C: 2 x 10-4
Octanol/water partition coefficient as log Pow: 5.073