Sodium silicate, commonly known as paohuajian, it is a kind of water soluble silicate and its aqueous solution, commonly known as sodium silicate, is a kind of mineral binder. Its chemical formula is R2O nSiO2, type of R2O for alkali metal oxide, n for silica and the ratio of the number of moles, alkali metal oxide called the number of sodium silicate. Architecture is the commonly used sodium silicate aqueous solution of sodium silicate.

The upstream raw materials: 1, 4 - naphthoquinone, soda ash, silica, silica gel, silica sand, sulfuric acid, sodium sulfate, caustic soda, soda ash, coal, heavy oil

Downstream products: paste air knife coating kaolin, filler kaolin and instant powdered sodium silicate, modified sodium silicate, lithium silicate, sodium metasilicate, sodium metasilicate, (5) water, sodium silicate, silica, polyvinyl alcohol interior wall paint, external coatings, lead chromate, sodium silicate, soap, synthetic detergent, laundry paste

The physical and chemical properties

Strong cohesive force, high strength, acid resistance, good heat resistance, alkali resistance and water resistance is poor.

Chemical formula

Na2SiO3 · 9 h2o

Molecular mass

284.20

character

Colorless crystallization of orthogonal double cone or white to pale block or powder. Can the weathering. At 100 ℃ lost 6 crystallization water molecules. Soluble in water, soluble in dilute sodium hydroxide solution, insoluble in ethanol and acid. Melting point is 1088 ℃. Low toxicity, median lethal dose (rats, through the mouth) 1280 mg/kg (no crystallization water)

storage

Seal a cool and dry preservation.

use

Analytical reagent, fire prevention agent, adhesive.

The purpose of the sodium silicate

A, coating material surface, improve its resistance to weathering ability In density is 1.35 g/cm after waterglass dipping or brushing of clay bricks, cement concrete, silicate concrete, stone and other porous materials, and can improve the compactness of material, strength and permeability resistance, frost resistance and water resistance, etc.

B, the succession of the reinforced soil solutions of sodium silicate and calcium chloride injection into the soil, resulting in damp environment, silica gel expansion due to absorb the moisture from the soil, the soil consolidation.

C, make quick-setting waterproofing agent.

D, repair brick walls Sodium silicate, graining blast furnace slag powder, sand and sodium fluosilicate by appropriate mixing ratio, pressure directly into the brick wall cracks, binding and reinforcing effect.

E, and sodium silicate aqueous solution can be used as the outer surface of the fire door.

F, can be used to make acid-proof daub, used in the kiln lining of a class. Physical and chemical properties

G, the preparation of silica gel