N=SiO2/Na2O is the molar ratio. It is the module of sodium silicate. Modulus is an important parameter for sodium silicate. It is typically between 1.5 to 3.5. Modulus determines how difficult sodium silicate is to dissolve in water. Warm water can dissolve n if it is constant. Hot water will dissolve n if it increases. If n exceeds 3, steam at greater than 4 atmosphere pressure is required for dissolution.
The greater the modulus of sodium sililicate, the higher the Si content. In turn, sodium silicate viscosity increases. It is easier to decompose, harden, and increase the bonding strength. Additionally, sodium silicates of different moduli have different degrees of polymerization, which results in significant differences in the silicic acids components in their hydrolysate. These differences can have an impact on production and use.
The sodium silicate can be broken down into two types: solid sodium silicate (liquid sodium silicate)
Liquid sodium silicate
Liquid Na2O*nSiO2 can be distinguished by the difference in the ratio of quartz and alkali. The appearance of liquid Na2O*nSiO2 will also vary depending on the type of alkali. There are many colors available, including black, gray and colorless. There are three types of neutral Na2O*nSiO2, Alkaline Na2O*nSiO2, and weakly simple Na2O*nSiO2.
Solid sodium silicate
Solid-state Ni2O*nSiO22 is a intermediate product that has a pale blue appearance. Dry casting forms Na2O*nSiO2 in bulk and transparent. However, wet water quenching produces Na2O*nSiO2 which is granular. These can only be used for liquid Na2O*nSiO2. There are several common types of Na2O*nSiO2 product options: powder solid, block solid, instant sodium Silicate, zero sodium metasilicate pentahydrate sodium Metasilicate and sodium orthosilicate.
For what purpose is sodium silicate used?
Sodium silicate, the most valuable soap filler, is a good choice. The alkalinity of laundry detergent can be lowered by adding sodium silicate. This will reduce soap loss and improve washing performance.
Sodium silicate helps to wash, stabilize and prevent corrosion in synthetic detergents.
Useful for papermaking filler.
It is used for the manufacture of silica gel.
This is used to bond clay and sand in the foundry, and create all sorts of cores and molds.
What are the other names for sodium silicate,
Sodium silicate can be described as an inorganic salt that has silicate counterion. It is also known to be sodium metasilicate, or water glass.
How does sodium silicate affect concrete?
Alkali activator for alkali active cement can be made from sodium silicate. Concrete uses it as a setting agent and silicate mineral coating to increase durability and waterproofing.
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