Sodium Metasilicate Nonahydrate
- CAS Number
- 13517-24-3
- HSN Code
- 28391100
- Molecular Formula
- Na2O3Si·9H2O
- Catalogue Number
- AL01395
- Purity
- ≥ 98%
- Molecular Weight
- 284.20 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Sodium metasilicate nonahydrate powder (practical) is a widely used alkaline sodium silicate salt essential in detergent and cleaning-product formulation. It is characterized by its high purity of 98% and is commonly utilized in various industrial applications due to its excellent alkalinity and ability to enhance cleaning efficiency. This compound is particularly notable for its role as a builder in detergents, where it helps to soften water and improve the effectiveness of surfactants. With a molecular formula of Na2O3Si·9H2O, it is a versatile ingredient in both household and industrial cleaning products.
Also known as Sodium Silicate, Metasilicate Sodium, Silicic Acid Sodium Salt.
- Catalogue No.
- AL01395
- CAS Number
- 13517-24-3
- Molecular Formula
- Na2O3Si·9H2O
- Molecular Weight
- 284.20 g/mol
- HSN Code
- 28391100
- Grade
- 98% Practical
- Product Form
- Substance
Sodium metasilicate nonahydrate appears as a white crystalline powder. It is highly soluble in water, forming an alkaline solution that can have a pH of around 12-13 when dissolved. The melting point of this compound is approximately 1000 °C, and it has a density of about 1.6 g/cm³. The compound is hygroscopic, meaning it can absorb moisture from the air, which is an important consideration for storage and handling. Its solubility in water makes it effective in various cleaning applications, allowing for easy incorporation into formulations.
- Appearance
- White crystalline powder
- Shelf Life
- -
- Packaging
- -
- Storage
- Store in a cool, dry place away from moisture and incompatible materials.
1.1 — Product identifier
- Chemical Name
- Sodium Metasilicate Nonahydrate
- Catalogue No.
- AL01395
- Product form
- Substance
- CAS Number
- 13517-24-3
- EC Number
- 236-675-0
- Grade
- 98% Practical
- EC Index Number
- -
- Chemical Formula
- Na2O3Si·9H2O
- HSN Code
- 28391100
- Synonyms
- Sodium Silicate, Metasilicate Sodium, Silicic Acid Sodium Salt
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Used in detergents and cleaning products as a builder and alkalinity source.
- Uses advised against
- Not specified
1.3 — Details of the supplier of the safety data sheet
- Company identification
- Address:- 102, B wing, Savgan Heights, RTO Lane,Andheri (W), Mumbai-400 053Maharashtra, India.
1.4 — Emergency Contact Details
- Phone / e-Mail
- Phone : +91 22 26317055 Mobile : +91 9820385757 e-mail : info@alphachemika.co.in
2.3 — Other hazards
- Other hazards
- Corrosive to metals; may cause skin and eye irritation.
3.1 — Substance
- Name
- Sodium Metasilicate Nonahydrate
- CAS No.
- 13517-24-3
4.1 — Description of first aid measures
- First-aid measures after inhalation
- Move to fresh air. If symptoms persist, seek medical attention.
- First-aid measures after skin contact
- Wash with soap and water. If irritation occurs, seek medical attention.
- First-aid measures after eye contact
- Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing. Seek medical attention if irritation persists.
- First-aid measures after ingestion
- Rinse mouth. Do not induce vomiting. Seek medical attention immediately.
4.2 — Most important symptoms and effects, both acute and delayed
- Symptoms relating to use
- Irritation of skin, eyes, and respiratory tract; may cause burns.
4.3 — Indication of any immediate medical attention and special treatment needed
- General information
- Treat symptomatically. Show this safety data sheet to the treating physician.
5.1 — Extinguishing media
- Suitable extinguishing media
- Water spray, carbon dioxide, dry chemical powder, foam.
- Unsuitable extinguishing media
- Not specified
5.2 — Special hazards arising from the substance or mixture
- Special procedures
- Non-flammable, but may react with acids to release heat.
5.3 — Advice for firefighters
- Protection during firefighting
- Do not enter fire area without proper protective equipment, including respiratory protection.
6.1.1 — For non-emergency personnel
- Emergency procedures
- Contain spill and prevent entry into waterways. Use appropriate protective equipment.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Collect and dispose of in accordance with local regulations.
6.4 — Reference to other sections
- Reference
- Not specified
7.1 — Precautions for safe handling
- Precautions for safe handling
- Use gloves and eye protection. Avoid contact with skin and eyes.
- Hygiene measures
- Wash hands and other exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.
7.2 — Conditions for safe storage, including any incompatibilities
- Storage conditions
- Store in a cool, dry place, away from incompatible materials such as acids.
8.2 — Exposure controls
- Hand protection
- Protective gloves (e.g. nitrile rubber)
- Eye protection
- Chemical safety goggles or safety glasses
- Skin and body protection
- Wear suitable protective clothing
- Respiratory protection
- Use appropriate respiratory protection if dust is generated.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- White
- Odour
- Odourless
- Odour threshold
- Not applicable
- pH value
- 12-13 (1% solution)
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 1000 °C
- Freezing point
- Not applicable
- Boiling point
- Not applicable
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- Not applicable
- Flammability (solid, gas)
- Not flammable
- Vapour pressure
- Not applicable
- Relative vapour density at 20°C
- Not applicable
- Density
- 1.6 g/cm³
- Solubility
- Soluble in water
- Log Pow
- Not applicable
- Viscosity, kinematic
- Not applicable
- Viscosity, dynamic
- Not applicable
- Explosive properties
- Not explosive
- Oxidising properties
- Not oxidizing
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Stable under normal conditions; reacts with acids to release heat.
10.2 — Chemical stability
- Chemical stability
- Stable under recommended storage conditions.
10.3 — Possibility of hazardous reactions
- Possibility of hazardous reactions
- No dangerous reactions known under normal conditions of use.
10.4 — Conditions to avoid
- Conditions to avoid
- Avoid contact with incompatible materials and excessive heat.
10.5 — Incompatible materials
- Incompatible materials
- Acids, strong oxidizers.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- Low toxicity; may cause irritation.
- Skin corrosion/irritation
- Causes skin irritation.
- Serious eye damage/irritation
- Causes serious eye irritation.
- Respiratory or skin sensitisation
- Not a sensitizer.
- Germ cell mutagenicity
- Not classified
- Carcinogenicity
- Not classified
- Specific target organ toxicity (single exposure)
- Not classified as a specific target organ toxicant.
- Specific target organ toxicity (repeated exposure)
- Not classified
12.1 — Toxicity
- Toxicity information
- Not specified
12.2 — Persistence - degradability
- Persistence - degradability
- Not specified
12.3 — Bioaccumulative potential
- Bioaccumulative potential
- Not specified
12.4 — Mobility in soil
- Mobility in soil
- Not specified
12.6 — Other adverse effects
- Environmental precautions
- Not specified
13.1 — Waste treatment methods
- Additional Info
- Dispose of contents/container in accordance with local, regional, national and international regulations.
14.1 — UN number
- UN-No. (ADR)
- UN 3253
- UN-No. (IMDG)
- UN 3253
- UN-No. (IATA)
- UN 3253
- UN-No. (ADN)
- UN 3253
- UN-No. (RID)
- UN 3253
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Sodium Metasilicate
- Proper Shipping Name (IMDG)
- Sodium Metasilicate
- Proper Shipping Name (IATA)
- Sodium Metasilicate
- Proper Shipping Name (ADN)
- Sodium Metasilicate
- Proper Shipping Name (RID)
- Sodium Metasilicate
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 8
14.4 — Packing group
- Packing group (ADR)
- III
- Packing group (IMDG)
- III
- Packing group (IATA)
- III
- Packing group (ADN)
- III
- Packing group (RID)
- III
14.5 — Environmental hazards
- Dangerous for the environment
- Not specified
- Marine pollutant
- Not specified
- Other information
- No supplementary information available
15.1 — Safety, health and environmental regulations/legislation specific for the substance or mixture
- 15.1.1 EU-Regulations
- Not specified
Sodium metasilicate nonahydrate is primarily used as a builder and alkalinity source in the formulation of detergents and industrial cleaning products. It enhances the cleaning power of surfactants by softening water and improving the removal of dirt and grease. Additionally, it is utilized in the manufacturing of soaps, as well as in the textile and paper industries for its adhesive properties. Its alkaline nature also makes it suitable for use in various chemical processes, including the production of silica and as a pH regulator in different applications.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL01395
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 284.20 g/mol
| Test | Standard | Observed |
|---|---|---|
| Description | Off white crystalline powder | Off white crystalline powder |
| Chloride (Cl) | <0.05% | 0.04% |
| Sulphate (SO4) | <0.05% | <0.05% |
| Iron (Fe) | <0.005% | 0.0028% |
| Heavy metal (as Pb) | <0.001% | 0.000057% |
| Loss on ignition (at 700°C) | 35 - 50% | 37.89% |
The above product complies with EP grade
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| 98% Practical | ≥ 98% | 1000 °C | ≤ 1% | ≤ 5% | None detected | Soluble in water |
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