This section focuses on an overview of silicon dioxide as well as its manufacturing processes and uses. Also, please check out the introduction to silicon dioxide manufacturers, supply chain issues, silicon dioxide suppliers, and silicon dioxide prices. Sinofi’s technical sales can help you buy high-quality silicon dioxide in bulk for your industry applications at wholesale prices based on E551 and CAS 7631-86-9.
Table of Contents
What is Silicon Dioxide?
Silicon dioxide (SiO2), also known as silica, also known as silica, is a versatile compound used in various industries. It is one of the most abundant compounds in Earth’s crust, commonly found in sand, quartz, and many minerals. According to the U.S. Food and Drug Administration (FDA), silicon dioxide is approved to be used in food.
CAS No.: 7631-86-9
According to the American Chemical Society, the CAS number of silicon dioxide is 7631-86-9.
Chemical formula: SiO2
E number: E551
According to the European Food Safety Authority (EFSA), silicon dioxide is designated as food additive E551. Silicon dioxide is a versatile food ingredient and industrial additive due to its unique properties.
Bulk Silicon Dioxide Manufacturers
Top silicon dioxide manufacturers include some companies in the United States, Germany, Japan, and China. Large players like Wacker operate globally, supplying silicon dioxide to various industries worldwide. The global silicon dioxide market is quite large, with a total production capacity estimated to be several million metric tons annually. The largest application of silicon dioxide is the rubber industry
Sinofi is a bulk silicon dioxide manufacturer in China, and we have a manufacturing facility with 2,500 square meters for the production of silicon dioxide E551. We supply high-quality silicon dioxide at bulk prices for our clients in the food, pharmaceutical, and personal care industries.
Manufacturing Process of Silicon Dioxide
Silicon dioxide is produced through various methods, depending on the desired purity and application:
Natural extraction: Mining and processing quartz sand.
Synthetic production:
- Thermal decomposition of silicic acid.
- Hydrolysis of silicon tetrachloride.
- Oxidation of silicon metal.
Bulk Silicon Dioxide Suppliers
Silicon dioxide suppliers play crucial roles in ensuring a steady supply of high-quality silicon dioxide products to various industries. Their involvement often extends beyond mere production, encompassing research, development, and technical support to drive innovation in silica applications. Many silicon dioxide manufacturers also act as suppliers, providing direct distribution to end-users. They serve multiple industries, including food, pharmaceuticals, coatings, electronics, and consumer goods, providing technical support and product development services.
Sinofi is a bulk silicon dioxide supplier in China, and we have a warehouse with 1,200 square meters for high-quality silicon dioxide E551. We supply different grades of silicon dioxide at wholesale prices to various industries worldwide.
Supply Chain of Silicon Dioxide
The silicon dioxide supply chain typically involves:
- Raw material extraction (e.g., sand mining).
- Silicon dioxide Processing and purification.
- Distribution to various industries.
Wholesale and Buy Silicon Dioxide
If you are looking to buy silicon dioxide in wholesale quantities, you should understand the different grades of silicon dioxide and their applications.
- Food Grade (E551)
- Pharmaceutical Grade
- Industrial Grade
- Electronic Grade
- Optical Grade
Each grade has specific purity levels and characteristics suited for different applications. By considering these factors and following a structured purchasing process, silicon dioxide buyers can ensure they obtain the right quality and type for their needs at competitive prices.
As a bulk silicon dioxide manufacturer and supplier in China, we supply high-quality silicon dioxide powder to large food manufacturers and pharmaceutical companies worldwide. We also wholesale our silicon dioxide E551 to small customers. Normally, they want to buy silicon dioxide in small quantities. To serve them, we can wholesale silicon dioxide at bulk prices and provide a one-stop purchasing service as they require.
Silicon Dioxide Prices (USD/Kg)
Food Grade Silicon Dioxide Price (Purity>=96%, BET 170–240 m2/g)
| Volume | Unit Price | Shipment |
| 50g | 3 USD | Express |
| 500g | 6 USD | Express |
| 1Kg | 10 USD /Kg | Express |
| 20Kg | 20% cheaper | Express |
| 100Kg-Above | negotiable | Express / Sea |
Silicon dioxide prices vary based on purity, particle size, and application. Understanding the pricing structure is crucial for businesses and individuals looking to purchase silicon dioxide. Shipping costs can significantly impact the total price.
Furthermore, the above price quotations of silicon dioxide, especially for small orders, do not include the express shipping fee. The reason is that the shipment cost of silicon dioxide powder may exceed the value of the sample. However, the bulk wholesale prices of silicon dioxide will be much lower than those of small orders. Please contact us for more details.
Silicon Dioxide Uses
Silicon dioxide has numerous applications across various industries:
Food and Beverage (as E551):
- Anti-caking agent
- Flow aid for powdered products
Pharmaceuticals:
- Excipient in tablets and capsules.
- Desiccant in packaging.
Electronics:
- Substrate for semiconductor devices.
- Insulating material in integrated circuits.
Construction:
- Key components in concrete and glass production
Personal Care:
- Abrasive in toothpaste.
- Absorbent in cosmetics.
Industrial:
- Catalyst support in chemical processes.
- Filler in rubber and plastics.
Silicon Dioxide Benefits
Benefits of using silicon dioxide include:
- Chemically inert and stable.
- Excellent electrical insulation properties.
- High melting point and thermal stability.
- Versatile in various applications due to different forms (amorphous, crystalline).
- Abundant and relatively low-cost raw material.
Silicon Dioxide Used in Food
A Chicken Seasoning – Formulation by Weight
Ingredients include: 1.5 peanut oil, 1.8 chicken paste, 2 chicken powder, 35 salt, 30 monosodium glutamate, 10 sugar, 5 dextrin, 8 corn starch, 0.3 disodium flavor nucleotide, 4 garlic powder, 0.11 silicon dioxide, 0.3 double DS001 pigment, 0.4 bone marrow protein powder, 100 mineral water, 0.5 flavor enhancer, 0.002 quinoa powder, 0.001 chia seed powder.
The preparation of the above flavor enhancer includes the following steps:
- Xylose, L-cysteine, and deionized water are mixed and stirred at 50°C for 35 minutes, and material A is obtained. The mass ratio of xylose, L-cysteine, and deionized water is 7: 1.5: 50;
- Xylose, L-methionine, xanthan gum, red pigment, ethyl maltol, and sodium tripolyphosphate are mixed, stirred for 15 minutes, and material A is added, and then stirred for 1.5 hours, and material B is obtained. The mass ratio of xylose, L-methionine, xanthan gum, red pigment, ethyl maltol, sodium tripolyphosphate, and material A is 5.5: 0.0035: 0.025: 0.015: 0.009: 0.007: 50;
- Mix shelled and peeled macadamia nuts and hazelnuts, then ground them, and then pass them through a 90-mesh sieve. Add it to material B and stir for 1.5 hours to obtain the flavor enhancer. The mass ratio of macadamia nuts, hazelnuts, and material B is 0.25: 0.45: 20.
In conclusion, silicon dioxide continues to play a crucial role in numerous industries, with ongoing research exploring new applications and optimizing its properties for specific uses. As a bulk silicon dioxide manufacturer and supplier in China, Sinofi sells different grades of silicon dioxide at wholesale prices to large manufacturers and small customers worldwide.