CAS NO. 7783-35-9 High purity China manufacturer with competitive price in available stock

Properties

White granular or crystalline powder. Relative density 6.47. Melting point (decomposition). When heated, it decomposes and turns yellow, then turns brownish, but recovers to white upon cooling. It decomposes under strong heat. In a small amount of water, it becomes anhydrous sulfate, but in a large amount of water, especially when heated, it decomposes into sulfuric acid and basic salt. It dissolves in hydrochloric acid, hot dilute acid and concentrated sodium chloride solution. It is insoluble in acetone and ammonia water.

Method
It is prepared by the reaction of mercuric oxide yellow with sulfuric acid solution. After evaporation, concentration, cooling and filtration, .

Purpose
Used for extracting gold and silver from chalcopyrite. As a catalyst for the production of acetaldehyde from acetylene. As a battery electrolyte. As a general reagent for the determination of barbiturates and cysteine. Also used in the pharmaceutical industry.

Safety Information:
It is toxic and harmful to the central nervous system and digestive system. Avoid contact with skin, eyes and respiratory tract. During use, appropriate protective gloves, glasses and masks should be worn. The operation should be carried out in a well-ventilated area and stored properly to prevent leakage. Store separately from other chemical substances to avoid dangerous chemical reactions. When disposed of, it should be handled in accordance with local regulations to ensure environmental safety.

Storage Method: Store in a cool and ventilated warehouse. Keep away from fire sources and heat sources. Avoid direct sunlight. The packaging must be sealed and must not be damp. It should be stored separately from oxidants, edible chemicals, etc., and must not be mixed. Appropriate materials should be available to contain the leakage.

Transportation Method: Before transportation, check whether the packaging container is complete and sealed. During transportation, ensure that the container does not leak, collapse, fall, or damage. Strictly prohibit mixed transportation with acids, oxidants, food, and food additives. The transportation vehicle should be equipped with emergency handling equipment for leakage. During transportation, prevent exposure to sunlight, rain, and high temperatures. When transporting by road, follow the prescribed route and do not stop in residential areas or densely populated areas.

Engineering control: Enclosed operation, local exhaust ventilation.
Respiratory protection: When the dust concentration in the air exceeds the standard, it is recommended to wear self-priming filtering dust masks. In case of emergency rescue or evacuation, air respirators should be worn.
Eye protection: Wear chemical safety goggles.
Body protection: Wear work clothes that are resistant to toxic substances penetration.
Hand protection: Wear latex gloves.
Other protection: Smoking, eating and drinking are prohibited in the workplace. Wash hands before meals. After work, take a shower and change clothes. Maintain good hygiene habits.