Precautions for polyphosphoric acid2020-08-24 13:49
1. Leakage emergency treatment
Evacuate personnel from the leaked contaminated area to a safe area, and prohibit irrelevant personnel from entering the contaminated area. It is recommended that emergency treatment personnel wear gas masks and chemical protective clothing. Do not directly touch the leakage, and stop the leakage while ensuring safety. Use sand, vermiculite or other inert materials to absorb, then collect and transport to waste disposal sites for disposal. If there is a large amount of leakage, use the embankment to contain it, then collect, transfer, recycle or dispose of it after harmless treatment.
2. Protective measures
Respiratory protection: You must wear a gas mask or air-supplied helmet when you may be exposed to its vapor. It is recommended to wear self-contained breathing apparatus during emergency rescue or escape.
Eye protection: wear chemical safety glasses.
Protective clothing: wear work clothes (made of anti-corrosion materials).
Hand protection: wear rubber gloves.
Others: After work, take a shower and change clothes. Store clothes contaminated by poisons separately and wash them before use. Maintain good hygiene.
3. First aid measures
Skin contact: Rinse immediately with water for at least 15 minutes. If burns occur, seek medical attention.
Eye contact: Lift the eyelid immediately and rinse with running water or saline for at least 15 minutes.
Inhalation: Leave the scene to fresh air. Give artificial respiration if necessary. Seek medical attention.
Ingestion: If you take it by mistake, rinse your mouth immediately and drink milk or egg white. Seek medical attention.
Extinguishing methods: foam, carbon dioxide, sandy soil.
Uses: 105% and 115% industrial polyphosphoric acid raw materials are all produced from yellow phosphorus made from own phosphate rock, and then the genuine phosphoric acid produced by thermal industry has less impurities, high content and stable quality. Mainly used in organic synthesis as dehydrating agent, cyclizing agent, acylating agent, as a catalyst or solvent for condensation, cyclization, rearrangement, substitution, etc., a new type of asphalt, used in the production of polyphosphoric acid in the inorganic industry The raw materials of salt products are also used as substitutes for orthophosphoric acid and analytical reagents.