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By Lzh | 02 February 2023 | 0 Comments

Why sodium silicate can be bleached

What is sodium silicate?
There are two kinds of sodium silicate, sodium metasilicate, chemical formula Na2SiO3, with formula weight 122.00. Sodium metasilicate is also known as "disodium trisilicate," CAS No. 6834-92-0. The other is sodium orthosilicate (sodium orthosilicate), the chemical formula Na4SiO4, with a relative molecular weight of 184.04. Sodium orthosilicate is a colorless crystal with a melting point of 1361K (1088 ), rare. Water glass solution is alkaline (slightly stronger than soda ash) due to hydrolysis. Because it is a weak acid salt, silicic acid can be separated when encountering hydrochloric acid, sulfuric acid, nitric acid, and carbon dioxide. During storage, carbon dioxide should be closely prevented from entering, and a rubber plug should be used to prevent sticking to the ground glass plug. In industry, soda ash is commonly used to co-melt with quartz to produce Na2CO3+SiO2 Na2SiO3+CO2 , and products often have a light blue-green color due to the presence of ferrous salts. It is used as an inorganic bonding agent (can be mixed with talcum powder), a soap filler, and an acid-resistant concrete. After adding pigments, it can be used as a coating for exterior walls. It can be poured into the foundation soil of ancient buildings to make the soil firm and prevent collapse.
Use of sodium silicate
Used in the textile industry for dyeing, bleaching, and sizing; In the machinery industry, it is widely used in casting, grinding wheel manufacturing, metal preservatives, etc.; In the construction industry, it is used to manufacture quick-drying cement, acid-resistant cement waterproof oil, soil curing agent, refractory materials, etc.; In agriculture, it can produce silicon fertilizer; In addition, it can be used as a silicon aluminum catalyst for catalytic oil cracking, filler for soap, adhesive for corrugated paper, laboratory crucible and other high-temperature resistant materials, metal preservatives, water softeners, detergent additives, refractory materials and ceramic raw materials, bleaching, dyeing and sizing materials for textiles, mineral processing, waterproof, leak stoppage, wood fire prevention, food anti-corrosion, and adhesive making.
Sodium silicate related knowledge Basic knowledge of water glass
Common water glasses are divided into sodium and potassium water glasses, commonly known as Paohua Alkali. Sodium water glass is a sodium silicate aqueous solution with the molecular formula of Na2O · nSiO2. Potassium water glass is a potassium silicate aqueous solution with the molecular formula of K2O · nSiO2. Sodium water glass is mainly used in civil engineering. Potassium water glass can also be used when engineering technology requires high standards. High-quality and pure water glass is a colorless and transparent viscous liquid, Soluble in water. It is pale yellow or bluish-gray when containing impurities. The m in the molecular formula of sodium silicate is called the modulus of sodium silicate, representing the molar ratio of Na2O and SiO2. It is a very important parameter. The higher the n value, the higher the viscosity of sodium silicate, but the solubility in water decreases. When n is greater than 3.0, it can only dissolve in hot water, causing trouble for users. The smaller the n value, the lower the viscosity of sodium silicate and the more easily soluble in water. The modulus n commonly used in civil engineering is 2.6~2.8. It is soluble in water and has high strength.
Price of sodium silicate
Sodium silicate particle size and purity will affect the product's price, and the purchase volume can also affect the cost of sodium silicate. A large amount of large amount will be lower. The price of sodium silicate can be found on our company's official website.
Sodium silicate supplier
Luoyang Tongrun Nano Technology Co. Ltd.  (TRUNNANO) Luoyang City, Henan Province, China, is a reliable and high-quality global chemical material supplier and manufacturer. It has more than 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including sodium silicate, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective sodium silicate, you are welcome to contact us or inquire any time.

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