|Solubility||1.65 g/L (20℃)|
|Physical and Chemical Properties|
fine white powder.
relative density 2.24
soluble in acid, ammonium salt, glycerol, insoluble in water, insoluble in alcohol.
|Use||Used in the preparation of bleaching powder, hard water softener and tap water Disinfection clarifier and construction industry|
|Hazard Symbols||Xi - Irritant|
|Risk Codes||R41 - Risk of serious damage to eyes|
|Safety Description||S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.|
S39 - Wear eye / face protection.
|UN IDs||UN 1759|
|Downstream Products||Lithium hydroxide|
Calcium nitrate anhydrous
Calcium bromide anhydrous
calcium peroxide hydrate
Calcium 2-ethylcaproate;Calcium 2-ethylhexanoate
white crystalline powder. Tasteless. Usually contains trace amounts of water. d 2. 08~2. 34. Soluble in acid, glycerol, sucrose, ammonium chloride solution, water-soluble, insoluble in ethanol. The pH of the saturated aqueous solution at 25 °c was 12.4. In air, carbon dioxide is readily absorbed into calcium carbonate.
The limestone is calcined into calcium oxide, mixed with water and digested in a certain proportion to obtain calcium hydroxide solution, which is purified and separated to remove impurities and then dehydrated, then, it may be dried at 150 to 300 °c.
Analytical reagents. It is used as an absorbent for acid gases such as carbon dioxide, hard water softener, disinfectant, antacid, buffer, neutralizer, curing agent, etc., and can also be used as an additive for rubber, medicine, and petrochemical products.
rat oral LD50:7340mg/kg. It is a strong alkaline substance with stimulating and corrosive effects. Inhalation of dust, the respiratory tract is strongly irritating, and may cause Pneumonia. Eye contact also has a strong irritation, can cause burns. The maximum allowable concentration is 5mg/m3. Staff should be well protected, if accidentally enter the eyes, should immediately rinse with water. Store in a cool, dry, well-ventilated warehouse.