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Beryllium Fluoride The Water Can Cause Pollution

Beryllium fluoride is a chemical substance, white powder or crystal, melting point 552 ℃, boiling point 1175 ℃, relative density (water = 1): 1.9860. It is harmful to the environment, the water can cause pollution. This product is noncombustible, toxic, for carcinogens, with strong irritation.

Role and use

Is used as a component of molten salt fuel and secondary heat carrier in the molten salt reactor of the atomic industry.

Precautions for use

Summary of hazards

Health hazards: the eyes, skin, mucous membranes and upper respiratory tract have a strong irritant, inhalation can cause rhinitis, bronchitis, pneumonia and so on. Individuals can occur with hepatomegaly. There may be contact dermatitis and allergic dermatitis. Can cause skin ulcers.

Environmental hazards: harmful to the environment, the water can cause pollution.

Explosion hazard: the goods non-flammable, toxic, carcinogenic, with strong irritation.

first-aid

Skin contact: Remove contaminated clothing and rinse with plenty of water.

Eye contact: lift the eyelid, rinse with running water or saline. Medical treatment.

Inhalation: quickly from the scene to the fresh air. Keep the airway open. If breathing is difficult, give oxygen. Such as breathing to stop, immediately artificial respiration. Medical treatment

Ingestion: drink plenty of warm water, vomiting. Medical treatment.

Fire-fighting measures

Hazardous characteristics: Highly hot or contact with acid or acid mist to release highly toxic smoke.

Hazardous combustion products: hydrogen fluoride, beryllium oxide.

Fire fighting methods: firefighters must wear a body fire protective clothing, in the wind to the fire. When the fire is extinguished, the container is moved from the fire to the open. And then according to the reasons for the fire to choose the appropriate fire extinguishing agent fire.

Leakage emergency treatment

Emergency treatment: isolation of contaminated areas, restricted access. Recommended emergency personnel wearing dust masks, wearing protective clothing. Do not touch the spill directly.

Small amount of leakage: carefully swept away, collected in a closed container.

A large number of leaks: collected or transported to the disposal of waste disposal sites.

Handling and storage

Handling Precautions: Closed operation, providing adequate local exhaust. To prevent dust from being released into the air in the shop floor. Operators must be specially trained to strictly observe the operating procedures. It is advisable for the operator to wear a dust mask (full cover), wear a rubber stopper, and wear rubber gloves. Avoid dust. Avoid contact with acids. Equipped with a leak emergency treatment equipment. Empty containers may be harmful residues.

Storage Precautions: Store in a cool, ventilated warehouse. Away from fire, heat. To prevent direct sunlight. Packaging sealed. Should be stored separately with acids, edible chemicals, avoid mixed storage. The storage area should be equipped with suitable materials to contain spills.

Preparation

Beryllium or beryllium hydroxide dissolved in 25% NH4HF2, in platinum or lead containers can be concentrated in the ammonium tetrafluoroborate (NH4) 2BeF4 crystal, and then heated to 450 ℃ in the carbon dioxide stream can be pure BeF2 , Can also be used beryllium carbonate and hydrogen fluoride gas reaction in the presence of water will only be able to get the basic salt 5BeF2·2BeO.