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[Chemical Knowledge]:What are the upstream raw materials for calcium hydroxide? What do the downstream products contain?

Calcium hydroxide has a wide range of applications in the field of chemical production raw materials, and its upstream and downstream related products are numerous. The following are some of the main upstream and downstream related products:

upstream products:

1. Limestone: The production of calcium hydroxide is mainly made of limestone as raw material through calcination, digestion and other processes.

2. Coal: In the production process of calcium hydroxide, coal needs to be used as fuel to provide heat for calcining limestone.

downstream products:

1. calcium carbonate: calcium hydroxide and carbon dioxide reaction can generate calcium carbonate, calcium carbonate is an important inorganic chemical raw materials, widely used in plastics, rubber, paper, paint, ink and other industries.

2. Food additives: Calcium hydroxide can be used as a food additive to adjust the pH of food and as a nutritional fortifier.

3. Building materials: Calcium hydroxide can be mixed with sand, gypsum and other materials to make building materials, such as gypsum board, bricks, etc.

4. Environmental protection field: Calcium hydroxide has the function of alkaline absorbent and can be used in environmental protection fields such as flue gas desulfurization and wastewater treatment.

5. pharmaceutical raw materials: calcium hydroxide can be used as pharmaceutical raw materials, for the preparation of some drugs, such as calcium, vitamin D and so on.

In short, calcium hydroxide has a wide range of applications in the field of chemical production raw materials, and its upstream and downstream related products are numerous, which play an important role in promoting economic development and improving people's lives.
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