Potassium Silicofluoride
- CAS Number
- 16871-90-2
- HSN Code
- 28269000
- Molecular Formula
- K2SiF6
- Catalogue Number
- AL1262C
- Purity
- ≥ 98%
- Molecular Weight
- 220.25 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Potassium silicofluoride (extra pure) is a soluble fluorosilicate salt that serves as a reference compound in various chemical applications. It is particularly notable for its use as an opacifying agent in glass and ceramic materials, enhancing their aesthetic and functional properties. This compound is characterized by its high purity level of 98%, making it suitable for sensitive applications in research and industry. With a CAS number of 16871-90-2, potassium silicofluoride is recognized for its unique chemical properties and versatility in fluoride chemistry.
Also known as Fluorosilicic acid, potassium salt.
- Catalogue No.
- AL1262C
- CAS Number
- 16871-90-2
- Molecular Formula
- K2SiF6
- Molecular Weight
- 220.25 g/mol
- HSN Code
- 28269000
- Grade
- 98% Extra Pure
- Product Form
- Substance
Potassium silicofluoride appears as a white crystalline powder, which is slightly soluble in water. It has a melting point of approximately 600 °C and a boiling point that is not well-defined due to its decomposition at high temperatures. The density of potassium silicofluoride is around 2.2 g/cm³. It has a low solubility in water, approximately 0.1 g/100 mL at 25 °C, and is known to have a faint odor. The compound is stable under normal conditions but should be stored in a cool, dry place away from incompatible materials.
- Appearance
- White crystalline powder
- Shelf Life
- -
- Packaging
- Available in 500 g and 1 kg containers
- Storage
- Store in a cool, dry place, away from moisture and incompatible materials.
1.1 — Product identifier
- Chemical Name
- Potassium Silicofluoride
- Catalogue No.
- AL1262C
- Product form
- Substance
- CAS Number
- 16871-90-2
- EC Number
- 240-295-0
- Grade
- 98% Extra Pure
- EC Index Number
- 009-007-00-4
- Chemical Formula
- K2SiF6
- HSN Code
- 28269000
- Synonyms
- Fluorosilicic acid, potassium salt
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Used as an opacifying agent and reference compound in glass and ceramic applications.
- 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
- Toxic if ingested or inhaled; may cause irritation to skin and eyes.
3.1 — Substance
- Name
- Potassium Silicofluoride
- CAS No.
- 16871-90-2
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. If irritation persists, seek medical attention.
- First-aid measures after ingestion
- Do not induce vomiting. Rinse mouth and seek medical attention immediately.
4.2 — Most important symptoms and effects, both acute and delayed
- Symptoms relating to use
- Symptoms of exposure may include respiratory irritation, skin irritation, and gastrointestinal distress.
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 emit toxic fumes in a fire.
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
- Evacuate area and ventilate. Wear appropriate protective equipment.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Collect spillage with suitable absorbent material 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
- Handle with gloves and avoid inhalation of dust. Use in a well-ventilated area.
- 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 strong acids and bases.
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
- Faint
- Odour threshold
- Not specified
- pH value
- Not applicable
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 600 °C
- Freezing point
- Not applicable
- Boiling point
- Decomposes
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- Not specified
- Flammability (solid, gas)
- Non-flammable
- Vapour pressure
- Not applicable
- Relative vapour density at 20°C
- Not applicable
- Density
- 2.2 g/cm³
- Solubility
- Slightly soluble in water (0.1 g/100 mL at 25 °C)
- Log Pow
- Not specified
- Viscosity, kinematic
- Not applicable
- Viscosity, dynamic
- Not applicable
- Explosive properties
- Not applicable
- Oxidising properties
- Not applicable
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Stable under normal conditions, but reacts with strong acids and bases.
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
- Strong acids and bases, moisture.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- Toxic if ingested or inhaled; LD50 (oral, rat) is approximately 200 mg/kg.
- Skin corrosion/irritation
- Causes skin irritation.
- Serious eye damage/irritation
- Causes serious eye irritation.
- Respiratory or skin sensitisation
- Not a skin sensitizer.
- Germ cell mutagenicity
- Not classified
- Carcinogenicity
- Not classified
- Specific target organ toxicity (single exposure)
- May cause respiratory irritation.
- 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)
- 2655
- UN-No. (IMDG)
- 2655
- UN-No. (IATA)
- 2655
- UN-No. (ADN)
- 2655
- UN-No. (RID)
- 2655
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Potassium Silicofluoride
- Proper Shipping Name (IMDG)
- Potassium Silicofluoride
- Proper Shipping Name (IATA)
- Potassium Silicofluoride
- Proper Shipping Name (ADN)
- Potassium Silicofluoride
- Proper Shipping Name (RID)
- Potassium Silicofluoride
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 6.1
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
Potassium silicofluoride is widely used in the glass and ceramics industry as an opacifying agent, which helps to improve the opacity and aesthetic qualities of glass products. It is also utilized in fluoride chemistry research, serving as a reference compound for various analytical methods. Additionally, this compound finds applications in the production of specialty coatings and in the formulation of dental products due to its fluoride content. Its role in enhancing the properties of ceramics makes it valuable in the manufacturing of tiles and sanitary ware.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL1262C
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 220.25 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | ≥ 98% | 98.5% |
| Moisture Content | ≤ 0.5% | 0.3% |
| Residue on Ignition | ≤ 1% | 0.5% |
| Related Substances | None detected | None detected |
| Solubility | Slightly soluble in water | 0.1 g/100 mL at 25 °C |
The above product is expected to comply with 98% Extra Pure grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| 98% Extra Pure | ≥ 98% | 600 °C | ≤ 0.5% | ≤ 1% | None detected | Slightly soluble in water |
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