Product Introduction

CAS 497-19-8 NA2CO3 import industrial soda ash.

Sodium carbonate [497-19-8] (Na2CO3), molecular weight 105.99. The purity of the chemical is more than 99.5% (mass fraction), also known as soda ash, but the classification belongs to salt and does not belong to alkali. Also known in international trade as soda or soda ash. It is an important organic chemical raw material, mainly used in the production of flat glass, glass products and ceramic glaze. It is also widely used in domestic washing, acid neutralization, and food processing.

Traits
Sodium carbonate is a white odorless powder or granule at room temperature. Absorbent, gradually absorb 1mol / L of water (about = 15%) in the exposed air. Its hydrates are Na2CO3·H2O, Na2CO3·7H2O and Na2CO3·10H2O.

Solubility

Sodium carbonate is easily soluble in water and glycerin. At 20 ° C, each 100 grams of water can dissolve 20 grams of sodium carbonate, the highest solubility at 35.4 ° C, 49.7 grams of sodium carbonate can be dissolved in 100 grams of water, slightly soluble in anhydrous ethanol, difficult to dissolve in propanol.

The solution is alkaline and can turn phenolphthalein into red.

Parameters

Sodium carbonate.

The aqueous solution of sodium carbonate is strongly alkaline (pH=11.6) and has certain corrosive properties. It can undergo metathesis reaction with acid, and can also undergo metathesis reaction with some calcium salts and strontium salts. There are three kinds of sodium carbonate containing crystal water: Na2CO3·H2O, Na2CO3·7H2O and Na2CO3·10H2O.

Product Details

Function and use.

Sodium carbonate is one of the important chemical raw materials. It is widely used in the fields of light industry, building materials, chemical industry, food industry, metallurgy, textile, petroleum, national defense, medicine, etc. It is used as raw material and cleaning agent for other chemicals. Detergents are also used in the field of photography and analysis. Followed by metallurgy, textiles, petroleum, national defense, medicine and other industries. The glass industry is the largest consumer of soda ash, which consumes 0.2 tons of soda ash per ton of glass. In industrial soda ash, it is mainly light industry, building materials, chemical industry, accounting for about 2/3: followed by metallurgy, textile, petroleum, national defense, medicine and other industries.

1/The glass industry is a large consumption department of soda ash, which consumes 0.2t of soda ash per ton of glass. Mainly used for float glass, tube glass bulbs, optical glass, etc.

2/Can also be used in chemical, metallurgical and other departments. 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 quality of products, reduce the erosive effect of alkali powder on refractory materials, and prolong the service life of kiln.

3/As a buffer, neutralizer and dough improver, it can be used in pastry and pasta, and can be used in an appropriate amount according to production needs.

4/Used as a detergent for wool rinsing, bath salts and pharmaceuticals, alkaline agents in tanning.

5/Used in the food industry as a neutralizing agent, a leavening agent, such as the manufacture of amino acids, soy sauce and pasta such as taro, bread and the like. It can also be added to the pasta with alkaline water to increase elasticity and ductility. Sodium carbonate can also be used to produce MSG

6/Color TV special reagent

7/Used in the pharmaceutical industry as an antacid and osmotic laxative.

8/Anhydrous sodium carbonate is used for chemical and electrochemical degreasing, electroless copper plating, aluminum etching, electrolytic polishing of aluminum and alloys, chemical oxidation of aluminum, sealing after phosphating, rust prevention between processes, and electrolytic chromium removal. Coating and chromium-removing oxide film, etc., also used in pre-plated copper, plated steel, and plated steel alloy electrolyte

9/The metallurgical industry is used as a smelting flux, flotation agent for ore dressing, steelmaking and smelting as a desulfurizer.

10/The printing and dyeing industry is used as a water softener.

11/The tanning industry is used for degreasing raw materials, neutralizing chrome tanned leather and increasing the alkalinity of chrome tantalum.

12/Benchmark for calibrating acid in quantitative analysis. Determination of aluminum, sulfur, copper, lead and zinc. Check urine and whole blood glucose. A cosolvent for the analysis of silica in cement. Metallographic analysis of metals, etc.