Product name :【 Calcium Hydride】

Calcium hydride molecular formula: CaH2 molecular weight: 42

Technical indicators: off-white particles; the finest particle size can reach 50 meshes (≥0.3mm), which can be determined according to customer requirements; purity ≥95%;

Properties of calcium hydride: Specific gravity 1.9; decomposes at 1000°C; insoluble in all common organic or inorganic solvents; slowly hydrolyzes in moist air, reacts gently with water, and releases hydrogen.

Uses of calcium hydride: Used as a reducing agent and condensing agent in organic synthesis, as a desiccant and hydrogen production material.

Physical and chemical constants of substances:

National standard number 43020 calcium hydride

CAS No. 7789-78-8 　　 Chinese name Calcium hydride English name calcium hydride 　　 Alias ​​molecular formula CaH2 Appearance and properties Gray-white crystal or lump, very deliquescent molecular weight 42.10 boiling point decomposition melting point 675 ℃ (decomposition) solubility insoluble in carbon disulfide, slightly soluble in concentrated Acid density relative density (water = 1) 1.7 Stability and unstable hazard mark 10 (flammable items when wet) Main purpose: Used as a reducing agent, desiccant, chemical analysis reagent and other emergency treatment methods:

1. Leakage emergency treatment

Isolate the leaked contaminated area and restrict access. Cut off the fire source. It is recommended that emergency personnel wear self-contained breathing apparatus and wear anti-acid and alkali overalls. Do not directly touch the leakage. A small amount of leakage: avoid dust, use non-sparking tools to collect in a dry, clean, covered container. Move to a safe place. A large amount of leakage: Cover with plastic sheet and canvas to reduce scattering. Contact the relevant technical department to determine the removal method.

2. Protective measures

Respiratory system protection: When you may be exposed to poisons, you should wear a hood-type electric air filter dust respirator. When necessary, self-contained breathing apparatus is recommended.Eye protection: protection has been used in respiratory protection.Body protection: Wear chemical protective clothing.Hand protection: Wear rubber gloves.Other: Smoking is strictly prohibited at the work site. Pay attention to personal hygiene.

3. First aid measures

Skin contact: Take off contaminated clothing immediately and rinse with plenty of running water for at least 15 minutes. Seek medical attention.Eye contact: Immediately lift the eyelids, rinse thoroughly with plenty of running water or saline for at least 15 minutes. Seek medical attention.Inhalation: Leave the scene quickly to a place with fresh air. Keep the airway open. If breathing is difficult, give oxygen. If breathing stops, give artificial respiration immediately. Seek medical attention.Ingestion: Rinse mouth with water and drink milk or egg white by mistake. Seek medical attention.Extinguishing methods: Do not use water, foam, carbon dioxide, halogenated hydrocarbons (such as 1211 fire extinguishing agent) to extinguish fires. Only use a metal cover or dry graphite or dry dolomite powder to extinguish the fire.