Industrial-grade foaming alkali liquid sodium silicate grouting grouting water glass building special foaming alkali

Commonly known as Sophosine, it is a water-soluble silicate, and its aqueous solution is commonly known as water glass, which is a mineral binder. Its chemical formula is R2O·nSiO2, where R2O is an alkali metal oxide, and n is the ratio of the number of moles of silica to the number of alkali metal oxides, which is called the number of moles of water glass. The commonly used water glass in construction is an aqueous solution of sodium silicate.

Also called Sodium Hydrochloride, Water Glass

Sodium silicate chemical formula: Na2SiO3·9H2O

Sodium silicate molecular mass: 284.20

CAS NO.:1344-09-8

EINECS 215-687-4

Melting point 1089℃

Relative density 2.614

Refractive index 1.520

Chinese National Standard: GB/T 4209-2008

Physical and chemical properties of sodium silicate

Strong adhesion, high strength, good acid resistance, heat resistance, poor alkali resistance and water resistance.

Sodium silicate properties

Colorless orthogonal biconical crystal or white to off-white lump or powder. Can be weathered. Lose 6 molecules of crystal water at 100°C. Easily soluble in water, soluble in dilute sodium hydroxide solution, insoluble in ethanol and acid. The melting point is 1088°C. Low toxicity, 50% lethal dose (rat, oral) 1280mg/kg (no crystal water)

Sodium silicate use

Analytical reagents, fire retardants, adhesives.

The use of water glass is very extensive, almost in all sectors of the national economy. In the chemical system, it is used to produce various silicate products such as silica gel, white carbon black, zeolite molecular sieve, sodium metasilicate pentahydrate, silica sol, layered silicon and instant powdered sodium silicate, potassium sodium silicate, etc. The basic raw material of silicon compounds. In economically developed countries, more than 50 types of deep-processed products using sodium silicate as raw materials have been developed, some of which have been used in high, precise, and cutting-edge technology fields; in light industry, they are indispensable raw materials for detergents such as washing powder and soap. , It is also a water softener and sedimentation aid; used in dyeing, bleaching and sizing in the textile industry; widely used in casting, grinding wheel manufacturing and metal preservatives in the machinery industry; used in the construction industry to manufacture quick-drying Cement, acid-resistant cement, waterproof oil, soil curing agent, refractory materials, etc.; in agriculture, it can be used to make silicon fertilizer; in addition, it can be used as a silica-aluminum catalyst for petroleum catalytic cracking, soap filler, corrugated paper adhesive, laboratory crucible and other high-temperature materials, Metal preservatives, water softeners, detergent additives, refractory materials and ceramic raw materials, textile bleaching, dyeing and sizing, mine beneficiation, waterproofing, leak-stopping, wood fireproofing, food preservatives and adhesives, etc.

Instant powder

Instant powdered sodium silicate is also known as instant foaming alkali and hydrated sodium silicate. The product has a white appearance, powdery appearance and good uniformity. It is very convenient to transport, store and use, especially suitable for mechanized and automated operation. It is widely used in metallurgy, electric power, petrochemical and building materials industries. It is used as a binder, industrial cleaning agent and preservative in unshaped refractory materials, as a quick-drying agent and reinforcing agent in soap making and acid-resistant cement, fine ceramic industry and precision casting industry. The instant powdered sodium silicate product also has all the properties and applications of the liquid sodium sulfate. The molecular formula of instant powdered sodium silicate is Na2O·mSiO2·nH2O, and the formula weight is generally between 280 and 350. Compared with the anhydrous powdered sodium silicate that is mechanically pulverized, the former has many valuable properties, such as water solubility and purity. The instant powdered sodium silicate is a fine chemical product, which is produced by the dry process (glauber's salt process, soda ash process) of soda ash through the process of materialization, filtration, mold adjustment, and spray drying.