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Sodium Meta Silicate
Sodium Meta Silicate WATER GLASS
25.00Kg.(PWD)
Product Description
Sodium metasilicate, anhydrous, tech grade manufacturer and supplier in India and Middle East.
Product Technical bulletin
Sodium Metasilicate
CAS No. : 6834-92-0
Linear Formula: Na2SiO3
Empirical Formula: Na2O3Si
Form-18 Mesh Granular
| 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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