Sodium Metasilicate

Alternate Text

Molecular formula: Na2SiO3; Na2SiO3·5H2O

Molecular weight: 122.1; 189.1504

CAS No.: 6834-92-0; 10213-79-3

Property:Anhydrous Property: White powder or uniform beaded, melting point 1089℃, non-toxic, odorless, harmless, strong alkaline, good determing ability, large buffer capacity, soluble in water, have good dispersion and emulsification, insoluble in ethanol, can absorb moisture and carbon dioxide in the air. Can neutralize acidic dirt, make adipose and oil emulsification, have anti-flocculating action to the inorganic matter, have anti-corrosive effect to metal. Pentahydrate Property: White powder or uniform beaded, melting point 72.2℃, easily dissolve in water and dilute lye, cannot dissolve in alcohol and acid, water solution is alkalinity.

Usage:

Anhydrous Usage: Instead of sodium tripolyphosphate to use in synthetic detergent, metal cleaning, clean tableware, public health and food cleaning, industrial cleaning agents, such as meat, dairy processing equipment washing auxiliaries, clay dispersion deflocculation agent, oil emulsifier, paper deinking agent. It is widely used in ceramics, detergents, textiles, printing and dyeing, papermaking, electroplating, coal slurry, concrete, petroleum and other industries.

Pentahydrate Usage: It is mainly used in washing powder, metal cleaning agent, tableware washing and high efficiency auxiliaries. Used for cotton cooking. Used for old paper to remove ink, printing decontamination, vegetable oil recovery. It can also be used as a stabilizer for peroxide bleaching.

Sodium metasilicate can also be added to aluminum alloys and the weak alkaline chemical oxidation liquid, in order to improve the quality of the oxide film layer. Used in Zinc plating electrolyte, in the application, should pay attention to the iron content, otherwise will make the iron impurity in the galvanizing electrolyte be too much, and affect the coating quality.

Packing:Net in 25 KG plastic woven bag.

Specification:

Item

Anhydrous

Pentahydrate

Granular

Powder

Granular

Powder

Sodium Oxide (Na2O)

49.5-52.0%

49.5-51.5%

27.8-30.0%

27.8-30.0%

Silica (SiO2)

45% Min

45% Min

27.3-30.0%

27.8-30.0%

Whiteness

80% Min

80% Min

75% Min

80% Min

Fe

200 ppm Max

200 ppm Max

120 ppm Max

120 ppm Max

Bulk Density

1.05-1.35g/cm3

1.05-1.35g/cm3

0.8-1.10g/cc

0.8-1.35g/cc

Particle Size

18-60mesh: 93% Min

60-120mesh: 93% Min

16-30mesh: 90% Min

40-100mesh: 90% Min

SHANGHAI VERDI CHEMICAL CO

Is a specialized manufacturing and operating chemical enterprise Our company own variety of export products which are widely used in chemical, pharmaceuticals, textile printing & dyeing, leather processing, fertilizer, water treatment, construction industry, food &feed additives and other areas. Oxalic acid, formic acid, sodium formate, calcium formate, sodium sulphide, series of humic acid, sodium hydrosulphide, ammonium chloride, sodium thiosulfate, and calcium nitrite are partial strong products. Among them, STPP occupy largest export volume and export to more than 20 countries and regions in America , Asia, Africa and other continents, winning customers praise with its superior quality , favorable price and excellent service. For over 10 years, stick to business philosophy of" you should give your customer what they really need not what you think they need ", Verdi has built long term & stable trade relationship with more than 45 countries and regions in the world. sincerely hope to cooperate with more clients in the world and seek common developments.