Applications of Caustic Soda in Industrial Fields

Sodium hydroxide, inorganic compound, chemical formula NaOH, is a highly corrosive strong base, generally in the shape of flakes or blocks, easily soluble in water and forms an alkaline solution. Additionally, it's deliquescent, and it is simple to absorb water vapor and carbon dioxide in the air. You can add hydrochloric acid to check on if it has deteriorated.

Caustic soda may be divided in to liquid caustic soda and solid caustic soda. Liquid caustic soda is known as liquid caustic soda, that is, sodium hydroxide solution, which is really a colorless and transparent liquid. Based on the mass fraction of sodium hydroxide, it can be divided in to 30%, 32%, 42%, 45%, 50% liquid caustic soda, etc., With regards to the usage of the production process, the general concentration of market production is 30-32% or 40-42%.

Main appearances of solid alkali are flake or pearl. Solid alkali is colorless and transparent crystal, and may be divided in to 73%, 95%, 96%, 99%, 99.5% solid alkali based on the mass fraction of sodium hydroxide. Solid alkali has a higher alkali content than liquid alkali. The caustic soda market in my own country is dominated by caustic soda, primarily because caustic soda gets the benefits of simple production process, low production cost, multiple application scenarios and large market demand.

Applications

As a fundamental chemical raw material for the national economy, Sodium hydroxide NaOH has a wide variety of uses. It is mainly employed for the production of pulp, alumina, soap, dyes, water treatment, rayon, metal smelting, petroleum refining, cotton fabric finishing, and the purification of coal tar products. Food processing, wood processing and machinery industry, chemical industry (preparation of borax, chromium salt, manganate, phosphate, production of polycarbonate, superabsorbent polymer, zeolite, epoxy resin, sodium phosphate, sodium sulfite and large levels of sodium Salt, pharmaceuticals and organic intermediates, regeneration of old rubber), etc.

Solid Caustic Soda

Mainly used in textile printing and dyeing clothing, dye chemical industry, coating ink, surface treatment, water quality analysis, environmental protection, food cleaning, toy safety, electronic appliances, printing paper packaging, scientific research institutions and other fields.

Chemical industry, desulfurization, production of detergents, soap, papermaking, oil cleaning agents, man-made fibers and textiles, petroleum refining, food industry, water treatment, metallurgy, disinfection, soil improvement, soap making, metallurgical industry, aluminum hydroxide production, manufacturing ceramics.

Liquid Caustic Soda

Because of different production processes in existing chlor-alkali plants, the concentration of liquid caustic soda is generally 30-32% or 40-42%. Liquid caustic soda is an essential basic chemical raw material with a wide variety of uses.

In the chemical industry, it's used to manufacture formic acid, oxalic acid, borax, phenol, sodium cyanide, soap, synthetic fatty acid, synthetic detergent, etc.

In the textile printing and dyeing industry, it's used as a solvent for cotton desizing agent, scouring agent, mercerizing agent, vat dye and Haichang blue dye.

Found in the smelting industry to manufacture aluminum hydroxide, alumina and metal surface treatment agents.

In the instrument industry, it's used being an acid neutralizer, decolorizer, and deodorizer. Adhesive industry is used as starch gelatinizer and neutralizer.

Additionally, it's widely used in enamel, medicine, cosmetics, leather, paint, pesticides, glass and other industries.