Friday, April 21, 2017

The purpose of the calcium oxide

Calcium oxide,  is a kind of inorganic compounds, its chemical formula is CaO, the common name for quick lime. Physical properties is the surface of white powder, no pure as the gray, containing impurities with pale yellow or gray, with moisture absorption.
use
1, as a filling agent, such as: used as filling agent of epoxy adhesives;
2, used as analytical reagent, absorbent when used as the carbon dioxide gas analysis, spectral analysis reagents, high purity reagents used in the semiconductor epitaxy in production, diffusion process, laboratory dry ammonia and alcohol dehydration, etc.
3, used as raw materials, can produce calcium carbide, soda, bleaching powder, etc., also used in leather making, waste water purification, calcium hydroxide and calcium compounds;
4, can be used as a building material, metallurgy, fluxing agent, cement accelerator, phosphor powder flux;
5, used as a vegetable oil decoloring agent, drug carrier, soil conditioner and calcium fertilizer;
6, can also be used for refractory material, desiccant;
7, agricultural machinery can be produced 1, 2, and underwater epoxy adhesives are used as the reaction agent and its resin 2402;
8, used for acid waste water treatment and sludge conditioning;
9, also can be used as boiler stop using protective agent, and using lime moisture absorption ability, make the boiler steam system of metal surface dry, prevent corrosion, suitable for low pressure, medium pressure, small capacity steam drum boiler of long-term outage protection;
Preparation of calcium hydroxide, 10, can and water reaction equation: CaO + H ₂ O = Ca (OH) ₂, belongs to the chemical reaction.

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