Calcium hydroxide is an inorganic compound with the formula Ca(OH)2 and molecular weight 74.10. It is commonly known as slaked lime or hydrate lime. It is a white hexagonal powder crystal. Density 2.243g/cm3. At 580℃, water loss becomes CaO.
When calcium hydroxide is added to water, it is divided into two layers, the upper solution is called clarified lime water, and the lower suspension is called lime milk or lime slurry. The upper clear lime water can test carbon dioxide, and the lower turbid liquid lime milk is a building material. Calcium hydroxide is a strong alkali, with bactericidal and antiseptic ability, on the skin, fabric corrosion. Calcium hydroxide is used in the manufacture of bleaching powder, hard water softener, disinfection insecticide, hair removal agent for leather, sugar refining and building materials.
Industry grade calcium hydroxide
Calcium hydroxide, also known as hydrated lime, is a chemical widely used in industrial and agricultural production. It is a white powder with a strong alkalinity that reacts with acids to produce heat and water. Calcium hydroxide is widely used in industrial production, such as in the manufacture of bleaching powder, disinfection insecticides, hair removal agents for leather, cement, glass, ceramics, paper and other products, and can also be used to purify wastewater, purify flue gas and other environmental protection fields.
| Index name |
Unit |
Data |
| Ca(OH)2 content |
% |
≥ 96 |
| Moisture content |
% |
≤ 1 |
| Fe content |
ppm |
≤ 300 |
| Residue content insoluble in acid |
% |
≤ 0,3 |
| Whiteness |
% |
91-92 |
| Particle size (0.053mm sieve) |
% |
325 order- 97% |
Food grade calcium hydroxide
Food grade calcium hydroxide has high activity, loose structure, high purity (can reach analytical purity), good whiteness, fine fineness, and less impurity content. It can be widely used in medicine, the synthesis of food additives, the synthesis of high-tech biological material HA, the synthesis of VC phosphate of feed additives, food konjac, calcium synthesis and calcium naphthoate, calcium lactate, calcium citrate, sugar industry additives and water treatment and other high-grade organic chemical synthesis.
| Item |
Unit |
Data |
| Ca(OH)2 content |
W/% |
≥ 96.0-100.0 |
| Moisture content |
W/% |
≤ 1 |
| 镁及碱金属 |
W/% |
≤ 2.0 |
| 氟化物（以F计) |
mg/kg |
≤ 40 |
| Residue content insoluble in acid |
W/% |
≤ 0.1 |
| 砷（AS） |
mg/kg |
≤ 1 |
| 铅（Pb) |
mg/kg |
≤ 1 |
| Screenings (0.045mm sieve) |
W/% |
≤ 0.4 |
