What is sodium metasilicate pentahydrate used for?
SODIUM METASILICATE PENTAHYDRATE APPLICATIONS A major use is as a builder (a material that enhances or maintains the cleaning efficiency of the surfactant, principally by inactivating water hardness) in soaps and detergents. Mainly used in making high efficiency detergents and metal cleaners.
What is the purpose of adding sodium metasilicate in the soap mixture?
The purpose of the sodium silicate to is prevent mineral deposits on surfaces after washing by removing water hardness. According to Laundry101.com it is especially effective on calcium ions creating an irreversible reaction. It is best to use sodium silicate with a surfactant that pulls dirt away from the material.
What are the properties of sodium silicate?
Sodium silicates are colorless glassy or crystalline solids, or white powders. Except for the most silicon-rich ones, they are readily soluble in water, producing alkaline solutions. Sodium silicates are stable in neutral and alkaline solutions.
What is disodium metasilicate pentahydrate?
Sodium Metasilicate Pentahydrate is a white granular powder, which is used in many cleaners, detergents, and soap formulations. It is an effective cement binding agent, coagulant in water treatment, dye fixative, binder, corrosion inhibitor, and penetrating sealant. Unit.
How do you make sodium metasilicate pentahydrate?
Sodium metasilicate pentahydrate is made commercially by reacting silica with a concentrated sodium hydroxide solution, which yields a sodium silicate solution having about 40 weight percent dissolved solids and an Na O:SiO molar ratio of about 1:1, concentrating the “ice sodium silicate solution by evaporation to …
What is difference between sodium silicate and sodium metasilicate?
Sodium metasilicate is a type of sodium silicate. The key difference between sodium silicate and sodium metasilicate is that sodium silicate refers to different ionic compounds which are silicate salts of sodium ions whereas sodium metasilicate is a type of sodium silicate having a sodium cation and SiO32- anion.
How does sodium metasilicate dissolve in water?
Bring purified water to a low simmer (approximately 175 degrees) on an electric stove. Stir sodium silicate powder into hot water with a long-handled metal spoon. Continue stirring until the powder is completely dissolved.
What is the pH of sodium silicate?
The molar ratio between silica and sodium oxide (n) plays an important role in the chemical behavior of Na-silicate [11]. It is delivered commercially as a solution with a pH in the range of 11–13 and with a decrease in alkalinity of n.