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What is Calcium Hydride?
CaH2 is a substance inorganic with a chemical composition of CaH2 having a molecular number of 42.10. These crystals are grayish-white and easily deliquescent. They can be used as reducing agent, desiccant, chemical analysis reagents etc. Also known as a colorless orthorhombic crystal, industrial products can be gray, powdered or orthorhombic. It is sensitive to moisture. At room temperatures, it will not react with nitrogen or chlorine, but high temperatures can cause the reaction to produce calcium oxide, calciumnitride and calcium chloride. When it is in contact with water, it releases hydrogen and decomposes. It can also produce hydrogen and calcium oxide 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?
Calcium hydride is irritating to the mucous tissues, upper respiratory system, skin and eyes. It can cause death after inhalation due to spasms and inflammation. Contact with it can cause burning, 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 respirator with an electric air filter. Wearing a self contained breathing apparatus is recommended when needed.
Eye protection: Protected with 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 thoroughly rinse for at least 15 min. Seek medical attention.
Eye contact: Remove the eyelid as soon as possible and thoroughly rinse with running water 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.
Ingestion: Rinse your mouth out with water if you accidentally consume milk or egg yolk. Seek medical attention.
What to do in the event of a calcium hydride spill?
Access to the area that is contaminated and leaking should be restricted. Remove the source of ignition. Emergency personnel are advised to wear acid-alkali proof overalls and self-contained breathing equipment. Do not touch the leakage. 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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