Why sodium silicate powder can be used as rubber waterproof agent?
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Author : Lzh
Update time : 2023-02-16 15:38:21
What is sodium silicate powder? Sodium silicate powder has strong adhesion, high strength, good acid resistance, good heat resistance, poor alkali resistance and good water resistance. Na2SiO3 9H2O, molecular weight 284.20, colorless orthogonal bipyramidal crystals or white to off-white mass or powder. It loses six molecules of crystalline water during weathering. Soluble in water, dilute sodium hydroxide solution, insoluble in alcohol and acid. Its melting point is 1088. Low toxicity, LD50(oral to rats)1280mg/kg(without crystalline water). Store in a cool, dry place. It's an acid oxide; Silicic anhydride has stable chemical properties. Insoluble in water, does not react with water, does not react with ordinary acids. It can react with hydrogen fluoride gas or hydrofluoric acid to form silicon tetrafluoride gas. At room temperature, the strong alkali solution reacts slowly with sio2 to form the corresponding silicates. Strong alkali solutions will eat glass, so glass bottles containing strong alkali solutions should not use frosted glass stoppers. If a glass stopper is used (glass contains sio2), sticky sodium silicate is produced to bond the glass stopper to the mouth of the bottle.
Use of sodium silicate powder Sodium silicate aqueous solution can also bind solids to form a heat-resistant insulation board. This property is particularly suitable for refracting materials that continuously withstand high temperatures. Because of this, it can be used for lining furnaces and glass manufacturing equipment. If it is impermeable, it can be used for passive fire protection, such as incorporating a plastic pipe structure to form a fire-retardant device.
Characteristics of sodium silicate powder As a salt, it will first have the properties of salt. As for its characteristics, it is not special. Silica is a weak acid, making the external H2CO3 acid stronger than silicic acid. Therefore, there will be silicic acid precipitation when CO2 passes into the sodium silicate solution. However, at high temperatures, Na2CO3+SiO2=Na2CO3+CO2 ↑ sodium silicate is in the liquid state of sodium silicate, commonly known as sodium silicate in the south and sodium silicate in the north. Sodium silicate is commonly known as sodium silicate, and liquid sodium silicate is colorless, Slightly colored transparent, or translucent viscous liquid. Solid sodium silicate is a colorless, slightly colored transparent, or translucent glass block. The form is divided into liquid, solid, and water quenched. Theoretically, this kind of material is called "colloid." Common sodium silicate is a light blue block or granular solid, slightly colored transparent or translucent viscous liquid after high temperature and high-pressure dissolution.
Price of sodium silicate powder Molybdenum Silicide particle size and purity will affect the product's Price, and the purchase volume can also affect the cost of molybdenum Silicide. A large amount of large amount will be lower. The Price of molybdenum Silicide can be found on our company's official website.
Sodium silicate powder 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 molybdenum Silicide, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective molybdenum Silicide, you are welcome tocontact us or inquire any time.
