Molekula
Sodium silicate FS-IV
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Sodium silicate FS-IV is a water-soluble inorganic compound, primarily used as a binder, adhesive, and corrosion inhibitor in industrial applications, including detergents, refractories, and textile processing. It is also employed in water treatment and as a food additive (E550) in some regions. This chemical has a CAS number of 1344-09-8, with the molecular formula Na₂O₃Si and a molecular weight of 122.06 g/mol. It is stored at ambient conditions, requires careful handling due to its Danger classification, and must be used in compliance with safety protocols. Molekula supplies Sodium silicate FS-IV from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
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Specifications
| Property | Value |
|---|---|
| Appearance | White powder |
| Na2O | 18.0-21.0% |
| Apparent Density | 0.50-0.80 g/ml |
| Modulus (M) | 3.10-3.40 |
| Dissolved speed, S | <240 |
| Fineness (Residue on screen) | <5 |
| Silicon Dioxide (SiO2) | 59.0-63.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 8 |
| Packing Group | II |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Colorless monoclinic crystals |
| Melting Point | 1089 °C |
| Boiling Point | 102 °C at 760 mmHg |
| Density | 1.4 (relative, water = 1) |
| Solubility (other solvents) | Very sol in cold & hot water; soluble in dilute sodium hydroxide; insoluble in alcohol, acids (nonahydrate) |
| Vapour Pressure | 18 mmHg |
| Refractive Index | 1.520 |
Source: PubChem CID 23266 (HSDB, PAC Chemical Database, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 90031758 |
| CAS Number | 1344-09-8 |
| IUPAC Name | disodium;dioxido(oxo)silane |
| EC Number | 229-912-9 |
| Molecular Formula | Na2O3Si |
| Molecular Weight | 122.06 |
| Exact Mass | 121.9412 |
| SMILES | [O-][Si](=O)[O-].[Na+].[Na+] |
| InChIKey | NTHWMYGWWRZVTN-UHFFFAOYSA-N |
| InChI | InChI=1S/2Na.O3Si/c;;1-4(2)3/q2*+1;-2 |
| PubChem CID | 23266 |
| UN Number | UN3266 |
| REACH Code | Y110 |
| HTS Code | 2839190000 |
| Tariff Code | 2839190000 |
Safety & GHS
-
Corrosive
GHS05
-
Health Hazard
GHS07
-
Serious Health Hazard
GHS08
Hazard statements
- H290 May be corrosive to metals
- H302 Harmful if swallowed
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H335 May cause respiratory irritation
- H372 Causes damage to organs through prolonged or repeated exposure
Precautionary statements
- P234 Keep only in original container
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Russian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Britesil
- Carsil
- Dryseq
- Sikalon
- Sodium sesquisilicate
- SODIUM SILICATE
- Sodium silicate glass
- Sodium siliconate
- Sodium water glass
- Waterglass
Frequently asked questions
What is sodium silicate FS-IV commonly used for?
Sodium silicate FS-IV is primarily an industrial chemical, used in detergents, as an adhesive and binder, in cements and refractories, in water treatment, and as a corrosion inhibitor.
What is the chemical formula and molecular weight of sodium silicate FS-IV?
The chemical formula is Na₂O₃Si (simplified as Na₂SiO₃), and the molecular weight is 122.06 g/mol.
How should sodium silicate FS-IV be stored?
Store in a cool, dry place at ambient temperature, ensuring the container is tightly sealed to prevent moisture absorption.
Can Molekula supply sodium silicate FS-IV in bulk quantities?
Yes, Molekula can supply sodium silicate FS-IV in bulk, with quantities tailored to meet your production needs.
What documentation comes with an order of sodium silicate FS-IV?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.