Calcium hydride and its precautions

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What is Calcium Hydride? Calcium Hydride CaH2 is an inorganic compound with a molecular formula of 42.10. These crystals are grayish-white and easily deliquescent. They can be used as reducing agent, desiccants or chemical analysis reagents. Also known as a colorless orthorhombic crystal, industrial products can be gray, powdered or orthorhombic. It is sensitive to moisture. It doesn’t react with nitrogen or chlorine in the air at room temperatures. However, at high temperature, it can generate calcium chloride, calcium nitride and calcium oxide. It releases hydrogen when it reacts with water. It can also produce calcium ethoxide when it reacts with ethanol. The reduction effect of metal oxides on sodium hydride and lithium hydride is much stronger.
What is the danger of calcium hydride to human health?
The skin, mucous tissues, and upper respiratory tract are all highly sensitive to calcium hydride. It can cause death after inhalation due to spasms and inflammation. Contact with it can cause burning sensations, wheezing or laryngitis.
Protective measures against calcium hydride
Respiratory Protection: If you think you might be exposed to poisons or dust, wear a dust-proof, electric air-supply-filter hood. Wearing a self contained breathing apparatus is recommended when needed.
Eye protection: Protected by respiratory protection.
Wear protective clothing to protect your body from chemicals.
Hand protection: Wear rubber gloves
Other: Smoking at work is strictly forbidden. Attention to personal hygiene.
What should I be doing if I accidentally get in contact with calcium hydroide?
Skin contact: Remove all contaminated clothing as soon as possible and rinse thoroughly with running water for atleast 15 minutes. Seek medical attention.
Eye contact: Remove the eyelid as soon as possible and thoroughly rinse with lots of water or saline solution for at least 15 min. Seek medical attention.
Inhalation – leave the scene immediately to get fresh air. Airways should be kept clear. Oxygen is recommended if breathing becomes difficult. If breathing stops, you should immediately start artificial respiration. Seek medical attention.
If accidentally ingested, rinse mouth with milk or eggwhite and do not drink it. Seek medical attention.
What to do in the event of a calcium hydride spill?
Access to the contaminated area should be restricted. Remove the fire source. It is advised that emergency personnel wear self contained breathing apparatus as well as acid-alkali proof overalls. Avoid touching the spillage. Use non-sparking, dust-free tools to collect the small amount. Place the container in a safe location. Leakage in large quantities: Cover the leakage with canvas and plastic sheet to reduce dispersion. Contact the relevant technical departments to determine the removal technique.

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