PARATHION 0006
April 2004
O,O-Diethyl-O-(4-nitrophenyl)phosphorothioate
CAS No: 56-38-2
Phosphorothioic acid O,O-diethyl O-(4-nitrophenyl) ester
RTECS No: TF4550000
Ethyl parathion
UN No: 3018
(C2H5O)2PSOC6H4NO2
EC No: 015-034-00-1
Molecular mass: 291.3
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
Combustible. Gives off irritating or NO open flames. Water spray, dry powder, carbon
FIRE
toxic fumes (or gases) in a fire. dioxide.
Liquid formulations containing
organic solvents may be
flammable.
In case of fire: keep drums, etc.,
EXPLOSION
cool by spraying with water.
EXPOSURE PREVENT GENERATION OF IN ALL CASES CONSULT A
MISTS! STRICT HYGIENE! AVOID DOCTOR!
EXPOSURE OF ADOLESCENTS
AND CHILDREN!
Pupillary constriction, muscle Ventilation, local exhaust, or Fresh air, rest. Artificial respiration
Inhalation
cramp, excessive salivation. breathing protection. may be needed. Refer for medical
Sweating. Nausea. Vomiting. attention.
Dizziness. Headache. Convulsions.
Diarrhoea. Weakness. Laboured
breathing. Wheezing.
Unconsciousness.
MAY BE ABSORBED! (Further see Protective gloves. Protective Remove contaminated clothes.
Skin
Inhalation). clothing. Rinse and then wash skin with water
and soap. Refer for medical
attention.
MAY BE ABSORBED! Redness. Face shield, or eye protection in First rinse with plenty of water for
Eyes
Pain. Blurred vision. combination with breathing several minutes (remove contact
protection. lenses if easily possible), then take
to a doctor.
Abdominal cramps. Diarrhoea. Do not eat, drink, or smoke during Give a slurry of activated charcoal in
Ingestion
Vomiting. (Further see Inhalation). work. Wash hands before eating. water to drink. Refer for medical
attention. See Notes.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Collect T+ Symbol Do not transport with food and
leaking and spilled liquid in sealable containers as N Symbol feedstuffs. Severe marine pollutant.
far as possible. Treat remaining liquid with an R: 24-26/28-48/25-50/53
alkaline substance. Absorb remaining liquid in sand S: (1/2-)28-36/37-45-60-61
or inert absorbent and remove to safe place. Do UN Hazard Class: 6.1
NOT let this chemical enter the environment. UN Pack Group: I
Personal protection: chemical protection suit
including self-contained breathing apparatus.
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-61GT6-I Provision to contain effluent from fire extinguishing. Separated from strong
oxidants, food and feedstuffs. Well closed. Keep in a well-ventilated room.
IPCS Prepared in the context of cooperation between the International
Programme on Chemical Safety and the European Commission 漏
International IPCS 2004
Programme on
Chemical Safety SEE IMPORTANT INFORMATION ON THE BACK.
0006 PARATHION
IMPORTANT DATA
Physical State; Appearance Routes of exposure
PALE YELLOW TO BROWN (TECHNICAL PRODUCT) LIQUID, The substance can be absorbed into the body by inhalation of
WITH CHARACTERISTIC ODOUR. its aerosol, through the skin, by ingestion and through the eyes.
Chemical dangers Inhalation risk
The substance decomposes on heating above 200/C, producing Evaporation at 20/C is negligible; a harmful concentration of
toxic gases including carbon monoxide, nitrogen oxides, airborne particles can, however, be reached quickly on spraying.
phosphorous oxides and sulfur oxides. Reacts with strong
oxidants. Attacks some forms of plastics, rubber and coatings. Effects of short-term exposure
The substance may cause effects on the nervous system,
Occupational exposure limits resulting in convulsions, respiratory failure, muscle weakness.
TLV: (I,V) 0.05 mg/m3; A4; BEI issued; (skin); (ACGIH 2004). Cholinesterase inhibition. Exposure may result in death. The
MAK: (I) 0.1 mg/m3; H; Peak limitation category: II (8); effects may be delayed. Medical observation is indicated.
Pregnancy risk group: D; (DFG 2003).
Effects of long-term or repeated exposure
Cholinesterase inhibitor; cumulative effect is possible: see acute
hazards/symptoms.
PHYSICAL PROPERTIES
Boiling point: 375/C Solubility in water, g/100 ml at 25/C: 0.002
Melting point: 6/C Flash point: 120/C
Relative density (water = 1): 1.26 Octanol/water partition coefficient as log Pow: 3.8
ENVIRONMENTAL DATA
The substance is very toxic to aquatic organisms. This substance may be hazardous in the environment; special attention should be
given to birds. The substance may cause long-term effects in the aquatic environment. This substance does enter the environment
under normal use. Great care, however, should be given to avoid any additional release, e.g. through inappropriate disposal.
NOTES
Depending on the degree of exposure, periodic medical examination is indicated.
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
If the substance is formulated with solvents also consult the ICSCs of these materials.
Carrier solvents used in commercial formulations may change physical and toxicological properties.
The odour warning when the exposure limit value is exceeded is insufficient.
Do NOT take working clothes home.
ADDITIONAL INFORMATION
Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible
LEGAL NOTICE
漏IPCS 2004
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