International Chemical Safety Cards

DIAZINON ICSC: 0137
DIAZINON
O,O-Diethyl-O-(2-isopropyl-6-methylpyrimidin-4-yl)phosphorothioate
Phosphorothioic acid O,O-diethyl O-(6-methyl-2-(1-methylethyl)-4-pyrimidinyl) ester
C12H21N2O3PS/(CH3)2CHC4N2H(CH3)OPS(OC2H5)2
Molecular mass: 304.4
CAS # 333-41-5
RTECS # TF3325000
ICSC # 0137
UN # 3018
EC # 015-040-00-4
TYPES OF
HAZARD/
EXPOSURE 		ACUTE HAZARDS/
SYMPTOMS 		PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.

In case of fire in the surroundings: all extinguishing agents allowed.
EXPLOSION


 
EXPOSURE
PREVENT GENERATION OF MISTS! STRICT HYGIENE!
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! Redness. Pain. Pupillary constriction.
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
EYES Redness. Pain.
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.
Do not eat, drink, or smoke during work. Wash hands before eating.
Rinse mouth. Refer for medical attention.
SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
Collect leaking liquid in sealable containers. Absorb remaining liquid in dry sand or inert absorbent and remove to safe place. Do NOT wash away into sewer (extra personal protection: P3 filter respirator for toxic particles).
Provision to contain effluent from fire extinguishing. Separated from acids, alkalis, food and feedstuffs. Dry. Well closed. Keep in a well-ventilated room.
Do not transport with food and feedstuffs.
Xn symbol
N symbol
R: 22-50/53
S: (2-)24/25-60-61
UN Hazard Class: 6.1
UN Packing Group: III
Severe marine pollutant.
SEE IMPORTANT INFORMATION ON BACK
ICSC: 0137 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

DIAZINON ICSC: 0137

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PHYSICAL STATE; APPEARANCE:
OILY COLOURLESS LIQUID , WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:


CHEMICAL DANGERS:
The substance decomposes on heating above 120°C producing toxic fumes including nitrogen oxides, phosphorous oxides and sulfur oxides. Reacts with strong acids and alkalis with possible formation of highly toxic tetraethyl thiopyrophosphates.

OCCUPATIONAL EXPOSURE LIMITS (OELs):
TLV: ppm; 0.1 mg/m3 (as TWA) (skin) (ACGIH 1993-1994).


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

INHALATION RISK:
A harmful contamination of the air will not or will only very slowly be reached on evaporation of this substance at 20°C; on spraying or dispersing, however, much faster.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance irritates the eyes and the skin. The substance may cause effects on the nervous system , resulting in convulsions and respiratory failure. Cholinesterase inhibitor. 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
 Boiling point (decomposes): 120°C
Relative density (water = 1): 1.1
Solubility in water, g/100 ml at 20°C: none		 Vapour pressure, Pa at 20°C: very low
Octanol/water partition coefficient as log Pow: 3.11
ENVIRONMENTAL
DATA
 This substance may be hazardous to the environment; special attention should be given to water organisms and honey bees.
N O T E S
Depending on the degree of exposure, periodic medical examination is indicated. Carrier solvents used in commercial formulations may change physical and toxicological properties. Do NOT take working clothes home. Basudin, Diazitol, Neocidol and Nucidol are trade names.
Transport Emergency Card: TEC (R)-61G45b
ADDITIONAL INFORMATION


ICSC: 0137 DIAZINON
© IPCS, CEC, 1993
IMPORTANT LEGAL NOTICE: Neither the CEC or the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use.