Methanearsonic acid, zinc salt(CAS#20324-26-9)
Methanearsonic acid, zinc salt(CAS#20324-26-9)
Physicochemical properties
Appearance: Pure products are white and shiny crystals, and industrial products are earthy yellow powders.
Solubility: insoluble in water, most organic solvents, soluble in aqueous solution of sodium hydroxide.
Uses: Mainly used as pesticides, insect repellents, 20% wettable powder.
Toxicity: LD₅₀ is 349.7-446.9mg/kg (oral in mice). The toxicity mechanism and poisoning manifestations are basically similar to those of arsenic inorganic compounds, and those who are exposed to this product in rice areas suffer from neurasthenic syndrome, and the amount of urinary arsenic and arsenic is significantly increased.
Hazardous characteristics
Flammability: Flammable.
Harmful combustion products: carbon monoxide, carbon dioxide, arsenic oxide, zinc oxide.
First aid measures
Skin-to-skin contact: Remove contaminated clothing and rinse skin thoroughly with soapy and water.
Eye contact: Lift the eyelids, rinse with running water or saline, and seek medical attention.
Inhalation: Quickly remove from the scene to fresh air to keep the airway open. If it is difficult to breathe, oxygen is given; If breathing stops, immediately give artificial respiration and seek medical attention.
Ingestion: Drink plenty of warm water, induce vomiting, and seek medical attention.
Leak disposal
Isolate leakage contaminated areas and restrict access. It is recommended that emergency responders wear dust masks (full face masks), wear gas suits, and do not come into direct contact with leaks.
Small leaks: Avoid dust and collect in a dry, clean, covered container with a clean shovel.
Massive leakage: Cover with plastic sheeting, canvas, and then collect and recycle or transport to a waste disposal site for disposal.
Precautions for storage and transportation
Precautions for operation: Closed operation, providing sufficient local exhaust. Operators must be specially trained and strictly follow the operating procedures. It is recommended that operators wear self-priming filtering dust masks, chemical safety glasses, one-piece tape gas jackets, and neoprene gloves. Keep away from fire and heat sources, and smoking is strictly prohibited in the workplace. Use explosion-proof ventilation systems and equipment to avoid dust generation and contact with oxidants. When handling, it is necessary to load and unload lightly to prevent damage to the packaging and containers. Equipped with corresponding varieties and quantities of fire-fighting equipment and leakage emergency treatment equipment.
Storage precautions: Store in a cool, ventilated warehouse, away from fire and heat sources, and package and seal. It should be stored separately from oxidants and edible chemicals, and should not be mixed. Equipped with the corresponding variety and quantity of fire-fighting equipment. The storage area should be equipped with suitable materials to contain the spill.
Transportation precautions: Before transportation, check whether the packaging container is complete and sealed, and ensure that the container does not leak, collapse, fall or damage during transportation. It is strictly forbidden to mix with acids, oxidants, food and food additives. During transportation, it should be protected from exposure to sun, rain and high temperature.
