Sodium Meta Silicate

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Sodium Meta Silicate

Sodium Meta Silicate WATER GLASS

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SKU: RXSOL-19-1521-025 Category:

Sodium metasilicate, anhydrous, tech grade manufacturer and supplier in India and Middle East.

 

Technical Bulletin

Sodium Metasilicate 

CAS No. : 6834-92-0
Linear Formula: Na2SiO3 
Empirical Formula: Na2O3Si
Form-18 Mesh Granular

Storage & Sensitivity: Ambient temperatures.

Physical State Solid granules or powder
Colour White
Odour Odourless
Odor Threshold Not Applicable
pH 12.7 (1% solution)
Melting Point/Freezing Point 1089°C
Initial Boiling Point and Boiling Range >1200°C
Flash Point Not Applicable
Evaporation Rate Not Applicable
Flammability Non-Flammable
Upper Flammable Limit Not Applicable
Lower Flammable Limit Not Applicable
Vapour Pressure (mm Hg, 20oC) Not Applicable
Vapour Density (Air=1) Not Applicable
Relative Density Not Applicable
Solubility(ies) Completely soluble in water. Decomposed by ethanol.
Partition Coefficient: noctanol/water Not Availble
Auto-ignition Temperature Not Availble
Decomposition Temperature Not Availble
Viscosity Not Availble
Explosive Properties Not Availble
Specific Gravity (Water=1)  2.61
% Volatiles by Volume Not Availble
Formula Na2SiO3
Molecular Weight 122.062 g/mol

Solubility: Soluble in cold water. Hydrolyzes in hot water. Insoluble in acids, alcohol and salt solutions.

Production

Sodium metasilicate is made by adding caustic soda to liquid sodium silicate to obtain an equal molar ratio of sodium oxide (Na2O) to silicon dioxide (SiO2).  The resulting metasilicate liquor is then cooled to crystallize the pentahydrate product or passed through a dryer to remove water and yield the anhydrous product. 

Chemical Identity

Name:  Sodium Metasilicate Chemical Abstracts Service (CAS) number:  6834-92-0.

Product Label

Sodium Meta Silicate

 

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