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DIAZINONICSC: 0137
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
O,O-diethyl O-[6-methyl-2-(propan-2-yl)pyrimidin-4-yl]phosphorothioate
November 2019
CAS #: 333-41-5
UN #: 3018
EC Number: 206-373-8

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible. Gives off irritating or toxic fumes (or gases) in a fire.  Risk of fire and explosion if formulations contain flammable/explosive solvents.  NO open flames.    Use water spray, powder, foam, carbon dioxide.   

 AVOID ALL CONTACT! FIRST AID: USE PERSONAL PROTECTION. 
  SYMPTOMS PREVENTION FIRST AID
Inhalation Muscle twitching. Pupillary constriction, muscle cramp, excessive salivation. Sweating. Nausea. Dizziness. Convulsions. Unconsciousness. Laboured breathing.  Use ventilation, local exhaust or breathing protection. Avoid inhalation of mist.  Fresh air, rest. Artificial respiration may be needed. Refer immediately for medical attention. See Notes. 
Skin MAY BE ABSORBED! Redness. Pain. Further see Inhalation.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer immediately for medical attention . See Notes. 
Eyes Redness. Pain.  Wear 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 refer for medical attention. 
Ingestion Abdominal cramps. Diarrhoea. Further see Inhalation.  Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. Refer immediately for medical attention. See Notes. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: chemical protection suit including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in dry sand or inert absorbent. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

skull;toxiccancer;health hazenviro;aqua
DANGER
Toxic if swallowed
Harmful if inhaled
May cause cancer
Causes damage to nervous system
Causes damage to the nervous system through prolonged or repeated exposure
Very toxic to aquatic life with long lasting effects 

Transportation
UN Classification
UN Hazard Class: 6.1; UN Pack Group: III 

STORAGE
Provision to contain effluent from fire extinguishing. Separated from strong oxidants, strong acids, bases and food and feedstuffs. Keep in a well-ventilated room. Store in an area without drain or sewer access. 
PACKAGING
Do not transport with food and feedstuffs.
Severe marine pollutant. 
DIAZINON ICSC: 0137
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
OILY COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. TECHNICAL-GRADE PRODUCT: PALE YELLOW-TO-DARK BROWN. 

Physical dangers
 

Chemical dangers
Decomposes above 120°C . This produces toxic fumes including nitrogen oxides, phosphorus oxides and sulfur oxides. Reacts with strong acids and strong bases. This produces toxic fumes and gases. Reacts with strong oxidants. This generates fire and explosion hazard. 

Formula: C12H21N2O3PS / (CH3)2CHC4N2H(CH3)OPS(OC2H5)2
Molecular mass: 304.4
Decomposes at 120°C
Relative density (water = 1): 1.1
Solubility in water, mg/l at 20°C: 60 (practically insoluble)
Vapour pressure at 20°C: negligible
Flash point: 104.4°C c.c.
Octanol/water partition coefficient as log Pow: 3.11  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion. 

Effects of short-term exposure
The substance is mildly irritating to the eyes and skin. The substance may cause effects on the nervous system. Cholinesterase inhibition. This may result in convulsions and respiratory depression. The effects may be delayed. Medical observation is indicated. 

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 long-term or repeated exposure
Cholinesterase inhibition. Cumulative effects are possible. See Acute Hazards/Symptoms. This substance is probably carcinogenic to humans. 


OCCUPATIONAL EXPOSURE LIMITS
TLV: 0.01 mg/m3, as TWA; (skin); A4 (not classifiable as a human carcinogen); BEI issued.
MAK: (inhalable fraction): 0.1 mg/m3; peak limitation category: II(2); skin absorption (H); pregnancy risk group: C 

ENVIRONMENT
The substance is very toxic to aquatic organisms. The substance may cause long-term effects in the aquatic environment. This substance may be hazardous to the environment. Special attention should be given to birds and bees. This substance does enter the environment under normal use. Great care, however, should be taken to avoid any additional release, for example through inappropriate disposal. 

NOTES
Depending on the degree of exposure, periodic medical examination is suggested.
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
Carrier solvents used in commercial formulations may change physical and toxicological properties.
Do NOT take working clothes home. 

ADDITIONAL INFORMATION
  EC Classification
 

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