Silicon Dioxide

food preservative,E551,CAS no.7631-86-9HS code293229

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Silicon Dioxide E551

Product Description

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Silicon Dioxide, E551, CAS no.7631-86-9, white powder. Silicon dioxide (SiO2), also known as silica, is a natural compound made of two of the earth’s most abundant materials: silicon (Si) and oxygen (O2). It is mainly produced under alkaline conditions, using precipitation process. Uses in in pharmaceutical products, silica aids powder flow when tablets are formed. Silicon Dioxide is an oxide of silicon with the chemical formula SiO2. Silicon Dioxide is a common additive in the production of foods, where it is used primarily as a flow agent in powdered foods, or to absorb water in hygroscopic applications used in silica gel, control moisture levels to avoid prevent certain goods from going bad. It is often used in cheese, fat spreads, confectionery, dried vegetables, etc. As a professional Silicon Dioxide supplier, we supply Silicon Dioxide food and pharmaceutical grade.

CAS No. : 7631-86-9
Chemical Formula : C7H5NaO2
E No. : E 211
H.S.Code : 291631

Silicon Dioxide Specification

Item Standard
Appearance White powder
Purity (SiO2, %) ≥ 96
Oil absorption (cm3/g) 2.0~ 3.0
Loss on drying (%) 4.0~ 8.0
Loss on ignition (%) ≤8.5
BET (m2/g) 170~ 240
pH (10% solution) 5.0~ 8.0
Sodium sulfate (as Na2SO4, %) ≤1.0
Arsenic (As) ≤ 3mg/kg
Lead (Pb) ≤ 5 mg/kg
Cadium (Cd) ≤ 1 mg/kg
Mercury (Hg) ≤ 1 mg/kg
Total heavy metals (as Pb) ≤ 20 mg/kg
Total plate count ≤500cfu/g
Salmonella spp./ 10g Negative
Escherichia coli/ 5g Negative

As a professional Silicon Dioxide supplier, we supply Silicon Dioxide food and pharmaceutical grade can provide HAPPC, KOSHER, HALAL Certificates for this product

Price trend of Silicon Dioxide

Upstream: Prices of upstream silicon tetrachloride are stable and supply is stable. Production capacity of the Silicon Dioxide manufacturers didn’t change much.
Downstream: Downstream demand is pretty stable.
Forecast: Considering the current market trend, price of Silicon Dioxide will be stable in the coming months.

Food Grade: Silicon Dioxide is widely used as antioxidants in food industries.  food grade Silicon Dioxide is available as fine powder(>96% purity).

Silicon Dioxide gluten free

Yes. Silicon Dioxide is gluten free and widely used in gluten free food to provide better appearance, longer shelf-life and higher nutrition value to wine, beer, and juice.

Halal Certified Silicon Dioxide

Silicon Dioxide is one of the most abundant materials on earth, available as White powder. As a synthesized chemical, Silicon Dioxide is general recognized as halal. We will still audit another 2 key points to make sure that our Silicon Dioxide is 100% halal: Are there any pig products used in manufacturing process of this ingredient? Does the ingredient contain Alcohol (impure) or other haraam ingredients?

Kosher Certified Silicon Dioxide

Silicon Dioxide is one of the most abundant materials on earth, available as White powder. As a synthesized chemical, Silicon Dioxide is general recognized as Kosher classified as Parve. Moreover, Silicon Dioxide is also regulated as Kosher for Passover.

Silicon Dioxide MSDS

  • 5.1. Storage: Store in a cool and dry place and Keep away from strong light and heat
  • 5.2. Handling precaution: Keep away from heat. Keep away from sources of ignition. Empty containers pose a fire risk, evaporate the residue under a fume hood. Ground all equipment containing material. Do not ingest. Do not breathe dust.
 

Side Effect of Kojic Acid

Silicon Dioxide is considered safe by FDA according to existing data and granted GRAS status.

In rare case, ingustion of silicon-containing antacids for long periods of time can cause Kidney stones in specific groups of individuals.Generally recognized as safe(GRAS) is a FDA designation that a specific substance or ingredient is generally considered safe by experts, and so is exempted from the usual Federal Food, Drug, and Cosmetic Act (FFDCA) food additive tolerance requirements.

Application and Uses of Silicon Dioxide

Silicon Dioxide is a Silicate salt widely used as flow agent in food and beverage. As a flow agent, Silicon Dioxide can be used in a wide variety of industries including: food production, pharmaceutical, agriculture/animal feed, and various other industries.

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