Premium Cryolite for Ceramics - High-Temp & Oxidation Resistant
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Product Highlights
- Enhanced Hardness: Reaches 6.5-7 Mohs, ensuring scratch resistance and long-lasting luster.
- Customizable Packaging: Packing options include Jumbo Bags and Ton Bags, fully customizable.
- Versatile Ceramic Additive: Improves glaze smoothness, strength, and acts as a colorant for warm hues.
- High Purity Grade: Industrial grade with 90%-99% purity, certified ISO standard.
- Fast Sample Delivery: Samples delivered within 1 day after confirming required details.
- Chemical Stability: Good corrosion resistance due to MgO and silicate composition.
- Global Supply Chain: Serving 180+ customers in 40+ countries with over 10 years of cooperation.
Product Attributes
- Customization
- Available
- CAS No.
- 13775-53-6
- Formula
- Na3alf6
- EINECS
- 239-148-8
- Certification
- ISO
- Purity
- 90%~99%
- Type
- Aluminum Fluoride
- Grade Standard
- Industrial Grade
- Na3alf6
- >=97%
- Packing
- Jumbo Bags
- Loi
- <=2~2.5
- Density
- 2.95~3G/Cm3
- Melting Point
- About 1000
- Transport Package
- Jumbo Bags
- Specification
- 325mesh, can be customized
- Origin
- Shandong, China
- Production Capacity
- 100000tons/Year
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Product Description
It's mainly used as a flux in aluminum smelting by fused-salt electrolysis; also an opalizer in the manufacture of enamel; an opacifier and auxiliary solvent of glass and enamel; an insecticide of crops; a flux in aluminum alloy casting; and in the production of ferrous alloy and effervescing steel; as well as a wear-resistant filler for resin and rubber-boned abrasive wheels.

Especially in ceramics, cryolite has many usages:
First, as the additive for glaze: Cryolite has high melting points and fire resistance. Adding to the glaze can increase the glaze's melting degree, and make the glaze smoother. Meanwhile, cryolite can improve the impact and abrasion resistance of the glaze.
Second, as a ceramic color, cryolite can play a colored role in ceramics, especially for warm colors such as red, orange, and yellow.
As an enhanced agent of ceramics: cryolite can improve the strength, toughness, and stability of the ceramics, and make the ceramics stronger.
Also as an additive for the filler: cryolite can be used as an excellent filler to improve the hardness and density of ceramic products.
Product Information
| Item | Synthetic Cryolite(Na3AlF6)/ Sodium Aluminum Fluoride |
| Physical Properties | As a crystalline white powder. Slightly soluble in water, density 2.95~3.0, melting point about 1000ºC, Easy to absorb moisture, can be sulfuric acid, hydrochloric acid, and other strong acid decomposition, to produce hydrofluoric acid and the corresponding aluminum salt and sodium salt. |
| HS code | 2826300000 |
As a raw material for thermal material: cryolite can be used as one of the raw materials for the creation of thermal materials and has a wide range of application prospects.
Technical Indicator
| Item | G-A | G-B | G-C | G-D |
| F %≥ | 52 | 52 | 53 | 53 |
| AL%≥ | 12 | 12 | 13 | 13 |
| Na %≤ | 33 | 33 | 32 | 32 |
| Hygroscopic Moisture | 0.20 | 0.4 | 0.20 | 0.40 |
| SiO2 %≤ | 0.25 | 0.36 | 0.25 | 0.36 |
| Fe2O3 %≤ | 0.05 | 0.08 | 0.05 | 0.08 |
| SO4 % ≤ | 0.6 | 1.0 | 0.6 | 1.0 |
| P2O5 %≤ | 0.02 | 0.03 | 0.02 | 0.03 |
| CaO %≤ | 0.15 | 0.20 | 0.20 | 0.60 |
| Ig-Loss | 2.0 | 2.5 | 2.0 | 2.5 |
Packing Details
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Type: | Ton Bags (can be customized) |
| Mark and Label: | Customizable | |
| Delivery time | sample--1 day after confirming your required details Order--amount less than 100 tons will take 14 days to produce |
Product Features
Cryolite as one of the ceramic raw materials, provides many advantages for producing ceramics.
Stable property: The composition of MgO and silicate makes cryolite have good chemical stability. Therefore, ceramic products made of cryolite as ceramic raw materials have high corrosion resistance and chemical stability and can remain intact in a variety of environments for a long time.
High hardness: The hardness of cryolite can reach 6.5-7 Mohs. So when making ceramics products using cryolite, the products' surface will be harder, won't be easy to scratch and wear, not easily lose luster, keep beautiful.
Antioxidant and high-temperature resistance: Cryolite is not easy to oxidize at high temperatures, can resist thermal shock, and the crystals in its products will not change too much at high temperatures. Ceramic products made of cryolite as ceramic raw materials can be used for a long time, with good high-temperature resistance and oxidation resistance, and it is not easy to crack or deform even in high-temperature environments.
Our Company
Certificate

Our Customers
We have had more than 180 customers from over 40 countries and regions since Gaoteng was founded, and many of them have cooperated with us for more than 10 years.

Our Team
About the Supplier
This supplier has been audited by TÜV Rheinland. Verify the report on the official TÜV Rheinland website with ID "MIC-ASI249726". Items marked "" are certified.
Company Profile
Dalian Gaoteng International Trading Co., Ltd. Was authorized by the Ministry of Foreign Trade and Economic Cooperation. We were founded in 2000. We've passed ISO9000, the certificate No. Is USA10Q22233R0S.
Our company is a professional exporter of silica products and our main clients come from ceramic and related industries. Our main products are flint pebbles (man-made pebbles), natural pebbles (cobblestone), and silex blocks (silica lining bricks).
Our company and subsidiary factory are located in the beautiful seaside city of Dalian, which provides abundant high-percent silica stones. Our products are exported to many countries and regions, such as Japan, Korea, the Middle East, Southeast Asia, and Europe. Many world famous ceramic companies have used our products for a long time, such as Endeka Cecamic (Johnson Matthey), the China branch, the Malaysia branch, the Spain branch, the India branch, and TOTO Sanitaryware. Taking the unique advantage of location and resources, we take the belief of "not going after the biggest but the best" all the time. Our company enjoys a good reputation both in China and around the world.
About Our Factory & Business Background
- Address
- Office: Luxun Road, No. 78, China// Factory: Jinshi Road, Lvshunkou District, Dalian, Liaoning, China
- Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: within 15 workdays
Our Production Capability & Technical Expertise
Our Industry Experience & Global Business Record
- Main Markets
- North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
FAQ
- What are the main applications of this cryolite?
- It is used as a flux in aluminum smelting, opacifier in glass/enamel, insecticide, and specifically as a ceramic additive for glaze, color, and strength enhancement.
- What is the purity and certification of the product?
- The product has a purity of 90%~99% and holds ISO certification. It is classified as Industrial Grade Aluminum Fluoride.
- Can the packaging be customized?
- Yes, the packing can be customized. Options include Jumbo Bags and Ton Bags, with customizable marks and labels.
- What are the delivery times for samples and bulk orders?
- Samples are delivered within 1 day after confirmation. Bulk orders under 100 tons take 14 days to produce.
- How does cryolite improve ceramic products?
- It increases glaze melting degree and smoothness, improves impact and abrasion resistance, enhances strength and toughness, and provides warm color tones.
- What is the lead time during peak and off seasons?
- Peak season lead time is one month, while off-season lead time is within 15 workdays.
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