Sodium Metasilicate Pentahydrate(granular) 
1.Cas no:6834-92-0 
2.Sodium oxide(Na2O)% 28.00-30.00 
3. Silica(SiO2)% 27.00-29.0

 Checking Item Test Standard

(HG/T2568-94)

Sodium oxide(Na2O)% 28.00-30.00

Silica(SiO2)% 27.00-29.00

Water insoluble% ≤0.2

Fe(ppm) ≤200ppm

Whiteness% ≥80

Bulk Density 0.80-0.97g/cc

PH of 1.0% Solution 12-13

Melting Point 72.2°C

ParticularSize % (16-30mesh) ≥90

Sodium Metasilicate Pentahydrate 
main uses: 
   1.In the construction industry, it is used for modulation acid mortar cement and concrete,

acid of coagulant agent.
   2.In ceramic industry,can improve efficiency and product quality.
   3.In the washing industry,After all the soluble anti-rust agent, scale can do metal cleaning

agents, electric parts of cleaning agents, and can be used in food industry detergent.
   4.In the paper industry can be used as binder, waste paper strip printing ink agent, paper

surface treated.
   5.In the textile industry as a printing fertilizer, fabric treatment before.