Calcium hydroxide overview
Calcium hydroxide: molecular formula Ca (OH) 2, relative molecular weight 74, MP 580 ° C, pH 212, strongly basic, white powder, can dissolve in water, can dissolve in acid, glycerin, sugar, ammonium chloride, can dissolve in acid to release a large amount of heat, relative density 2.45, its clear aqueous solution is a colorless, odorless, alkaline clear liquid, Placed in air to gradually absorb carbon dioxide to become calcium carbonate.
The application of Calcium hydroxide
Calcium hydroxide is mainly applied in environmental-friendly wastewater treatment, sludge conditioning, flue gas desulfurization, tannery leaching, materials raw materials, paint making, non-metallic smelt, word material addition, calcium based lipids, dyes, freezers and so on.
This product is referred to executive standard: Q / 320682nbh03-2009
Special industrial calcium hydroxide
1. It is mainly used in citric acid, dyes, materials for heat preservation, pharmaceutical acid preparations, astringents, calcium based lipids, cryoprotectants, etc.
2. Indicators:
Project | Indicators |
Ca (OH) 2 main content | ≥90% |
Free H2O | ≤ 1.0% |
325 mesh sieve pass rate | ≥90% |
Specific surface area | ≥15㎡/g |
appearance | White powder |
Environmental protection special calcium hydroxide
1. It is mainly used in waste incineration, flue desulfurization, industrial wastewater treatment and other industries.
2. Indicators:
Project | Refined grade | Industrial superior |
Ca (0h) 2 main content | ≥95% | ≥94% |
Free H2O | ≤1.0% | ≤1.0% |
325 mesh sieve pass rate | ≥90% | ≥90% |
Hydrochloric acid insoluble material | ≤0.20% | ≤0.30% |
appearance | White powder | White powder |
Leather special calcium hydroxide
1. It is mainly used for depilation and delipidation during leather processing.
2. Indicators:
Project | Indicators |
Ca (0h) 2 main content | ≥92% |
Free H2O | ≤1.0% |
325 mesh sieve pass rate | ≥90% |
appearance | White powder |
Calcium hydroxide, the chemical formula Ca (OH) 2, commonly known as slaked lime, lime water, slaked lime or burnt lime, is a white solid slightly soluble in water, the aqueous solution of which is often known as lime water (in large amounts, lime milk or lime slurry may be formed), which is alkaline and absorbs carbon dioxide and water and so forth in the air to become metamorphic and is generally known to be water-absorbing and is generally used in the modification of construction or in acidic lands.
SMILES
[OH-].[OH-].[Ca+2]