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Send EmailZirconium Silicate, Glaze Grade Zirconium Silicate, Frit Grade Zirconium Silicate, 10101-52-7
| Parameter | Description |
|---|---|
| Product Name | Zirconium Silicate |
| Chemical Formula | ZrSiO₄ |
| Molecular Weight | 183.31 g/mol |
| Appearance | Fine white mineral powder |
| Hardness (Mohs) | 7.5 |
| Density | ~4.6 – 4.7 g/cm³ |
| Melting Point | ~2,550 °C (decomposes) |
| Property | Chemically stable and inert at very high temperatures |
| CAS Number | 10101-52-7 |
| EC Number | 233-252-7 |
CHEMICAL DESCRIPTION:
Zirconium Silicate (ZrSiO₄) is a naturally occurring zircon mineral and a chemically stable ceramic raw material at high temperatures. It is insoluble in water, dilute acids, and hot concentrated sulfuric acid. It is used as an opacifier (whitening agent) in ceramic glazes. It increases physical resistance, lowers thermal expansion coefficient, and raises melting temperature. It is a more economical opacifier compared to tin oxide.
| Property | Value |
|---|---|
| Appearance | Fine white mineral powder |
| Hardness (Mohs) | 7.5 |
| Density | ~4.6 – 4.7 g/cm³ |
| Molecular Weight | 183.31 g/mol |
| Melting Point | ~2,550 °C (decomposes) |
| Refractive Index | 1.92 – 2.01 |
| Solubility in Water | Insoluble |
| Solubility in Acids | Insoluble (except HF) |
| Particle Size | 45 µm (glaze grade), 75 µm (frit grade) |
| Component | Formula | Typical Ratio (%) |
|---|---|---|
| Zirconium Oxide | ZrO₂ | ~65.9 |
| Silicon Dioxide | SiO₂ | ~32.0 |
| Iron Oxide | Fe₂O₃ | < 0.05 |
| Titanium Dioxide | TiO₂ | < 0.05 |
| Aluminum Oxide | Al₂O₃ | < 0.1 |
| Calcium Oxide | CaO | < 0.05 |
| Radioactivity | (U, Th) | < 100 ppm |
| Product Grade | Particle Size | Application |
|---|---|---|
| Glaze Grade Zirconium Silicate | 45 µm | Opacifier in glaze formulations |
| Frit Grade Zirconium Silicate | 75 µm | Raw material in frit production |
Note: Whiteness increases as particle size decreases.
| Property | Description |
|---|---|
| Opacifier (Whitening Agent) | Provides opacity in glaze formulations |
| Physical Resistance | Increases mechanical strength in glazes and ceramic bodies |
| Thermal Expansion | Lowers glaze thermal expansion coefficient |
| Melting Temperature | Raises melting temperature of glazes and bodies |
| Chemical Stability | Chemically stable at high temperatures |
| Economic Advantage | More economical opacifier compared to tin oxide (SnO₂) |
| Opacification Efficiency | High; better opacification compared to TiO₂ or SnO₂ |
| Sector | Application |
|---|---|
| Ceramic Glazes | Opacifier and whitening agent in glaze formulations |
| Ceramic Frit | Raw material in frit production |
| Wall Tiles | White wall tile glazes |
| Plastics | Filler and whitening agent |
| Paper | Paper coatings |
| Food | Whitening agent in food packaging |
| Refractories | High-temperature refractory materials |
| Porcelain | Porcelain manufacturing |
Annual Consumption in Ceramic Sector: 60,000 – 70,000 tons
| Property | Zirconium Silicate (ZrSiO₄) | Tin Oxide (SnO₂) | Titanium Dioxide (TiO₂) |
|---|---|---|---|
| Cost | Medium/Low | High | Medium |
| Opacification Efficiency | High | High | Medium/High |
| Color Effect | Neutral | Neutral | Slightly yellowish |
| Thermal Stability | High | High | Medium |
| Usage | Widespread | Limited | Limited |
| Parameter | Information |
|---|---|
| Raw Material Source | Australia, New Zealand, South Africa |
| Transport | Shipped by sea to various countries |
| Status in Turkey | No zircon sand deposits; entirely imported |
| Processing Method | Micronized by dry ball milling to commercial products |
| Grinding | Glaze grade: 45 µm, Frit grade: 75 µm |
| Parameter | Information |
|---|---|
| Storage Conditions | Dry, enclosed area; protect from moisture |
| Storage Temperature | Room temperature |
| Keep Away From | Moisture, hydrofluoric acid (HF) |
| Shelf Life | Unlimited (under proper storage) |
| Packaging | 25 kg Kraft bags, 1000 kg Big Bags |
| Handling Notes | Avoid dust formation; avoid eye and respiratory contact |
Personal Protective Equipment:
Dust mask (P2 or N95)
Safety goggles
Protective gloves
Protective clothing
| Parameter | Value |
|---|---|
| GHS Classification | Not classified (not hazardous) |
| Toxicity | Low |
| Dust Inhalation | Dust inhalation may cause respiratory tract irritation |
| Skin Contact | May cause mild irritation |
| Eye Contact | May cause mild irritation |
| Carcinogenicity | Not classified |
| Ecotoxicity | Low |
| Special Risk | Zirconium compounds have low toxicity; may contain trace radioactivity (U/Th) |
SPECIAL WARNINGS:
Zirconium silicate dust inhalation may cause respiratory tract irritation
Appropriate dust control measures should be taken
Avoid contact with hydrofluoric acid (HF)
Radioactivity content (U, Th) is limited (< 100 ppm)
| Parameter | Information |
|---|---|
| Ecotoxicity | Low |
| Bioaccumulation | Not expected |
| Environmental Impact | Low |
| Waste Management | Disposal according to local regulations |
| Recycling | Possible (used zirconium coatings can be recovered) |
| Parameter | Information |
|---|---|
| UN Number | Not classified as dangerous for transport |
| Hazard Class | Not classified |
| Packing Group | Not applicable |
| Proper Shipping Name | Zirconium Silicate |
| Marine Pollutant | No |
| ADR/RID Label | None |
SUMMARY:
Zirconium Silicate (ZrSiO₄) is a chemically stable ceramic raw material derived from natural zircon mineral. It has a density of ~4.6-4.7 g/cm³, Mohs hardness of 7.5, and melting point of ~2,550 °C. It is insoluble in water and acids. It is used as an opacifier and whitening agent in ceramic glazes. It is more economical than tin oxide.
Key Properties:
| Property | Value |
|---|---|
| Formula | ZrSiO₄ |
| CAS No | 10101-52-7 |
| Molecular Weight | 183.31 g/mol |
| Hardness (Mohs) | 7.5 |
| Density | ~4.6 – 4.7 g/cm³ |
| Melting Point | ~2,550 °C |
| ZrO₂ | ~65.9% |
| Packaging | 25 kg Kraft bags, 1000 kg Big Bags |
CRITICAL WARNINGS:
Opacifier (Whitening Agent): The most important raw material providing opacity in glaze formulations. More economical and widely used compared to tin oxide (SnO₂).
Particle Size: Glaze grade is 45 µm, frit grade is 75 µm. Whiteness increases as particle size decreases.
Melting Temperature: Raises melting temperature of glazes and bodies. This property must be considered in recipe formulations.
Status in Turkey: No zircon sand deposits; entirely imported. Raw material is sourced from Australia, New Zealand, and South Africa.
Chemical Resistance: Resistant to all acids except hydrofluoric acid (HF). Avoid contact with HF.
Radioactivity: Zirconium silicate may contain trace amounts of uranium (U) and thorium (Th). Radioactivity is limited in commercial products.
Dust Control: Zirconium silicate dust inhalation may cause respiratory tract irritation. Appropriate dust control measures should be taken.
Important Disclaimer: This Technical Data Sheet (TDS) is for informational purposes only. The information provided is based on available data and is believed to be accurate. However, the user is solely responsible for determining the suitability of the product for their specific applications and for complying with all applicable regulations and safety requirements. For complete safety, handling, storage, and regulatory compliance information, always refer to the official Safety Data Sheet (SDS/MSDS) provided by the manufacturer/supplier. All local, national, and international regulations must be followed when working with Zirconium Silicate. Testing prior to use in glaze recipes is recommended.