Simazine (chemical formula: C7H12ClN5), appears as colourless crystals with a faint odour. It is soluble in water and slightly soluble in organic solvents.
Simazine is a herbicide used to control broadleaf weeds and grasses, working by inhibiting photosynthesis. Simzine is administered on lawns as well as orange, apple, pear, almond, grape, asparagus, corn and berry crops.
Simazine use in the European Union is now banned.
The routes of exposure for simazine include inhalation, ingestion and skin and eye contact.
Whilst not normally a hazard due to the non-volatile nature of simazine, it may still cause damage to the central nervous system, liver and kidneys following inhalation. Symptoms may include nausea, dizziness and extreme fatigue. Individuals with existing respiratory conditions such as emphysema or chronic bronchitis may incur further disability. Those with prior kidney damage should also take the proper precautions as further damage can occur if the chemical is not handled properly.
Ingestion of simazine is likely to be harmful, with animal experiments suggesting less than 150 grams being lethal for humans.
Direct skin contact with simazine may cause inflammation. Dermatitis is possible if exposure is repeated, with symptoms including redness, swelling and blistering. Further harm can occur following absorption and open cuts and wounds should not be exposed to the substance.
Eye contact with simazine may produce irritation, inflammation and redness. Conjunctivitis may also occur with prolonged exposure.
If dust is inhaled, remove the patient from the contaminated area to the nearest fresh air source. The patient should blow their nose to clear their breathing passages of contaminants. Seek medical attention if irritation or discomfort persists.
If swallowed, urgent hospital treatment is likely to be required. If medical attention is over 15 minutes away, then inducing vomiting with fingers down the back of the throat may be advised. The patient should be accompanied with a copy of the SDS when placed in the care of medical professionals.
If skin exposure occurs, immediately remove all contaminated clothing, footwear and accessories and cleanse the affected area with plenty of water and soap. Seek medical attention in the event of irritation.
If the chemical is exposed to the eyes, flush the eyes out immediately with fresh running water, remembering to wash under the eyelids. Removal of contact lenses should only be done by a skilled individual. Seek medical attention without delay.
Eyewash fountains should be accessible near the area of the potential exposure to the chemical and adequate ventilation should be available to remove/dilute the contaminant (local exhaust should be installed if necessary).
The PPE recommended when handling simazine includes safety glasses with side shields, chemical goggles, chemical protective gloves (e.g. PVC), overalls, PVC aprons and safety footwear. Skin cleansing and barrier creams are also recommended in instances of skin exposure.
For more information about the proper handling procedures of simazine, refer to a copy of your SDS. Click here for a trial of our SDS Management Software or contact us at sales@chemwatch.net for more information about our chemicals management solutions.
