Caustic soda is mainly used in textile in the form of caustic soda flakes or pearls. It is also known as sodium hydroxide, has a white solid appearance and a formula of NaOH. It is an inorganic alkali salt, hygroscopic in nature and is soluble in water and polar solvents. It has a slippery feel and also absorbs carbon dioxide in the atmosphere to from sodium carbonate.
Being a base, it will undergo neutralization reaction with acid and form relevant salt and water. It will also corrode metals such as aluminum, generating hydrogen gas that has potential to behave as an explosive gas. Caustic soda also has decomposing effects on proteins and may penetrate deep tissues.
By reacting sodium carbonate with calcium hydroxide, the reaction yields sodium hydroxide and calcium carbonate. Since sodium hydroxide is soluble while calcium carbonate is not, by doing filtration, calcium carbonate can be easily removed to obtain a crude solution of sodium hydroxide. This solution is then purified, processed and standardized for industrial consumption.
With the electrolysis of sodium chloride solution, solid sodium hydroxide is manufactured and obtained with the evaporation of water. Chlorine gas is also produced as a main by-product. Electrolysis occurs through three main types of cells, mainly mercury cell, diaphragm cell and membrane cell.
Caustic soda is used in the manufacturing of textile. Caustic soda is used in the scouring process, mercerization process, as well as dyeing process. During the process of scouring, it aids in the removal of natural oil, wax and fat. During the process of mercerization, it aids in improving the tensile strength, smoothness and dye substantively of the cellulosic. Caustic soda also serves as a pH regulator and controls the pH of dyeing bath, which is required to be precise and constantly maintained throughout the process.
Caustic soda is also used in pulp and paper industry during the cooking process and oxygen delignification process. Both sulfate and sulfite pulps are purified by removing lignin compounds in the caustic extraction stages of multistage bleach plants. In some kraft mills, caustic soda is also used as a makeup chemical. It is also used as the initial treatment in deinking secondary fibers.
It is also used to manufacture soap and detergents, applied during the saponification process in soap industry and neutralization process in detergent industry. Caustic soda saponifies fats into water soluble sodium-based soaps.
In addition, caustic soda helps to extract alumina from bauxite ore via Bayer process and is employed to produce an array of organic and inorganic chemicals.
Tradeasia is fulfilling the needs of many international and national companies by offering premium quality of the raw compounds, which is prepared by professionals. We are a leading Caustic Soda Suppliers that serve the purpose of many of our clients, at budget-friendly rates. Paired up with our comprehensive supply capability, We are one of the best Caustic Soda Suppliers based in South East Asia. Tradeasia International tends to make sure that the desired product is delivered within the given time frame without compromising on the quality at all.
Driven by the idea of providing top-quality Caustic Soda for our customers, we at Tradeasia International aim to organize and offer top-not Caustic Soda that widely used in several industries such as:
In the textile industry, It is used as an agent for manufacturing such as scouring ( to remove the natural oil, and wax) and dyeing ( to improve the smoothness and strength of tensile).
It is widely used in the detergent industry because of its quality to dissolve in grease, oil, fat, etc.
In water treatment, as it plays an important role in water purification as a pH enhancer that reduces the toxic metals.
Industrial cleaning agent, to clean the equipment and storage tanks.
Domestic cleaning agent, to clean the waste discharge pipes, sinks and drain
As a decomposer, as it has the quality of tissue digestion that used to decomposed roadkills animals.