How much is Zhoushan sodium carbonate per ton

Source: Wuhai Jinhao Trading Co., Ltd Time: 2024-06-26 05:42:03 [Report]

Hydrolysis reaction
As sodium carbonate is hydrolyzed in aqueous solution, the ionized carbonate ion combines with the hydrogen ion in water to form bicarbonate ion, resulting in the reduction of hydrogen ion in the solution, leaving ionized hydroxide ion, so the solution pH is alkaline.

React with acid
Take hydrochloric acid as an example. When hydrochloric acid is sufficient, sodium chloride and carbonic acid are generated, and unstable carbonic acid is immediately separated
It is decomposed into carbon dioxide and water. This reaction can be used to produce carbon dioxide.

Reaction with alkali
Sodium carbonate can react with calcium hydroxide, barium hydroxide and other alkalis to form precipitation and sodium hydroxide. This reaction is commonly used in industry to prepare caustic soda (commonly known as caustic method).

Industrial sodium carbonate is industrial soda ash.
Sodium carbonate is one of the important chemical raw materials, which is widely used in light industry, daily chemical industry, building materials, chemical industry, food industry, metallurgy, textile, petroleum, medicine and other fields. Among industrial soda ash, light industry, building materials and chemical industry account for about 2/3, followed by metallurgy, textile, petroleum, medicine and other industries.
1. The glass industry is a major consumer of soda ash, with 0.2t of soda ash consumed per ton of glass.
Mainly used for float glass, picture tube glass shell, optical glass, etc. Soda ash can provide Na ion in the glass batch as a clarifying agent to eliminate bubbles in the glass liquid, and it can also be decomposed in the furnace to release CO2 gas to stir the glass melt.
2. It can also be used in chemical industry, metallurgy and other departments.
Industrial sodium carbonate will volatilize and produce gas when encountering high temperature. It can be used to stir liquid metal and effectively remove sulfur when used with metallurgical calcium oxide. The use of heavy soda ash can reduce the flying of alkali dust, reduce the consumption of raw materials, improve the working conditions, improve the product quality, reduce the erosion of alkali powder on refractory materials, and extend the service life of the furnace.
3. It can be used as buffer, neutralizer and dough improver, and can be used for pastry and flour food in appropriate amount according to production needs.
In the process of making noodles, microorganisms will generate acid, which will turn sour after the dough is launched. Add alkali to neutralize it, and then you can make delicious pasta
4. As a detergent, it is used for wool rinsing, bath salt, medicine, and alkaline agent in tanning.
Soda ash solution is alkaline due to hydrolysis, and can saponify with oil stain to produce water soluble fatty acid sodium

3 Determination method
3.1 Preparation of sample solution
Use a weighing bottle of known quality to quickly weigh 35 ± 1g of solid sodium hydroxide or 50g of liquid sodium hydroxide (accurate to 0.01g), put them into a 1000mL volumetric flask, add secondary reagent water to dissolve them, cool them to room temperature, dilute them to the scale, and shake them up.

Weigh about 1.7g of sample, place it in a weighing bottle or porcelain bottle with constant weight, transfer it to an oven or high temperature furnace, dry it at 250-270 ℃ to constant weight, and pour the test material to 0.0002g into a conical bottle, and then accurately weigh the weight of the weighing bottle or porcelain bottle. The difference between the two weights is the quality of the test portion. Dissolve the test sample with 50mL water, add 10 drops of mixed indicator solution of cresol green and methyl red, titrate with hydrochloric acid standard titration solution until the test solution turns from green to dark red. Boil for 2min, continue titration until dark red after cooling.

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