Hydrofluoric acid harm to human body and emergency treatment measures

The emergency treatment method of hydrofluoric acid is: Rapidly evacuating personnel in the leaked area to a safe area, and isolation and strict restrictions on access. It is recommended that emergency personnel wear self-contained positive pressure breathing apparatus and wear anti-acid and alkaline work clothes. Do not touch the spill directly. Cut off the leak as much as possible. Small leak: mixed with sand, dry lime or soda ash. It can also be washed with plenty of water, diluted with water, and put into the waste water system. A lot of leaks: constructing embankments or digging pits for containment. The pump is transferred to a tanker or a dedicated collector for recovery or transport to a waste disposal site for disposal.

Hydrofluoric Acid Handling Precautions: Closed operation, pay attention to ventilation. The operation is as mechanized and automated as possible. Operators must be specially trained to strictly observe the operating procedures. It is recommended that the operator wear a self-priming filter gas mask (full face mask), wear rubber acid and alkali resistant clothing, and wear rubber and acid resistant gloves. Prevent vapors from leaking into the workplace air. Avoid contact with alkalis, active metal powders, and glass products. It should be lightly loaded and unloaded during handling to prevent damage to the packaging and containers. Equipped with leakage emergency treatment equipment. Empty containers may be harmful residues.

Hydrofluoric acid storage precautions: Store in a cool, ventilated warehouse. Keep away from fire and heat sources. Storage temperature does not exceed 30°C and relative humidity does not exceed 85%. Keep the container sealed. Should be stored separately from alkalis, active metal powders, and glass products. Avoid mixing. Storage areas should be equipped with spill emergency treatment equipment and suitable containment materials. Monitoring method: Ion selective electrode method; Fluorine reagent-strontium salt colorimetric method

Hydrofluoric acid protection measures:

Engineering control: Closed operation, pay attention to ventilation. Mechanize and automate as much as possible. Provides safety showers and eyewash equipment.

Respiratory protection: Wear self-priming filter gas mask (full face mask) or air respirator when you may be exposed to smoke. It is advisable to wear an oxygen breathing apparatus when emergency emergencies or evacuation.

Eye protection: Protection from respiratory protection.

Physical protection: Wear rubber acid and alkali resistant clothing.

Hand protection: Wear rubber acid and alkali resistant gloves.

Other protections: Smoking, eating and drinking are prohibited at the job site. After work, take a shower. Separately store clothes that have been contaminated with poison and wash them for later use. Maintain good hygiene habits.

Main uses: Used as analytical reagents, preparation of high-purity fluoride, glass etching and plating surface treatment.

Incompatible materials: Strong alkalis, active metal powders, glass products.

Waste Disposal Method: Use excess lime water to neutralize and precipitate the deposited landfill for disposal or recycling. The supernatant is diluted and discharged into the wastewater system.

Packing method: Put into lead bucket or special plastic container, and then into the wooden box. The voids are filled with non-combustible materials; they are filled in plastic bottles, special bakelite, rubber or lead containers, and then sealed in strong wooden boxes. Wooden box with non-combustible material liner, net weight per box does not exceed 20 kg, 3 to 5 kg per box packaging limited to 4 bottles.

Explosion hazard: This product is non-flammable, highly toxic, highly corrosive, strong irritant, can cause human burns.

Skin contact: Immediately remove contaminated clothing and flush with plenty of running water for at least 15 minutes. Get medical attention.

Eye contact: Immediately lift the lid and rinse thoroughly with plenty of running water or saline for at least 15 minutes. Get medical attention.

Inhalation of hydrofluoric acid: Quickly leave the site to fresh air. Keep the airway open. If breathing is difficult, give oxygen. If breathing stops, give artificial respiration immediately. Get medical attention. Ingestion: Rinse mouth with water and drink milk or egg white. Get medical attention.

Hydrofluoric Acid Hazardous Properties: This product is non-flammable but reacts with most metals and generates hydrogen which can cause explosions. In case of H foaming agent burns immediately. Extremely corrosive.

Hazardous combustion products: Hydrogen fluoride.

Extinguishing method: Extinguishing agent: water spray, foam.

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