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[Chemical Knowledge]：Properties and uses of light soda ash

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Light soda ash is an important inorganic chemical raw material, which is widely used in glass, soap, textile, food, medicine and other fields. This article will detail the properties and uses of light soda ash.

1. properties

light soda ash chemical name is sodium carbonate, molecular formula Na2CO3, is a white powder or granular material. It has the following properties:

1. Alkalinity: Light soda ash is a strong alkali and weak acid salt, which is alkaline after being dissolved in water.

2. Hygroscopicity: Light soda ash has strong hygroscopicity and can absorb moisture in the air.

3. Thermal stability: Light soda ash is not easy to decompose at high temperature and has good thermal stability.

4. Solubility: Light soda ash is easily soluble in water, and the solubility increases with the increase of temperature.

2. uses

1. glass industry

light soda ash in the glass industry as one of the main raw materials, used in the production of flat glass, bottle glass, optical glass and so on. In glass production, light soda ash is melted with quartz sand, limestone and other raw materials to form glass liquid, and then made into glass products through molding, annealing and other processes.

2. Soap Industry

Light soda ash is used as a saponifying agent in the soap industry, reacting with grease to produce soap and glycerin. At the same time, light soda ash can also adjust the pH value of soap, so that it has better decontamination ability.

3. Textile Industry

In the textile industry, light soda ash is used for printing, dyeing and finishing of silk and wool fabrics, which can soften water quality and improve dyeing fastness. In addition, light soda ash can also be used to remove grease and dirt from textiles.

4.

in the food industry In the food industry, light soda ash, as a food additive, can be used to produce pasta, biscuits and other foods, which can adjust the pH of food and improve the taste and color of food.

5.

of the pharmaceutical industry In the pharmaceutical industry, light soda ash can be used as raw materials or excipients for the production of stomach drugs, hemostatic drugs, antipyretic drugs and other drugs.

In short, as an important inorganic chemical raw material, light soda ash is widely used in various fields.

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