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Silicon Dioxide Suppliers

Plomp Mineral Services BV

Esdoornlaan 19a, NL-4254 At Sleeuwijk, The Netherlands, netherlands

netherlands netherlands

silicon

Hi-Mar Specialty Chemicals, L.L.C.

3939 West McKinley Avenue, Milwaukee, Wisconsin, U.S.A., united states

united states united states

silicon

Hangzhou Gangjun Chemical Co., Ltd

No.451 Jincheng Road,Xiaoshan, Hangzhou, Zhejiang, China., china

china china

silicon

Polymer Products (Phil.) Inc

11 Joe Borris St. Bagong Ilog Pasig City, 1600, philippines

philippines philippines

silicon

Bell Chem Corp.

1340 Bennett Dr Longwood, FL, 32750-7503 USA, united states

united states united states

silicon

Divina Hitech Systems

A 202, Fantasia, Raheja Gardens, Thane, Maharashtra, India., india

india india

silicon

A & Z Food Additives Co., Ltd.

801 YiTai Building,No.76 Gu Cui Road , HangZhou , ZheJiang, China., china

china china

silicon

Univar Inc

17425 NE Union Hill Road Redmond, WA, united states

united states united states

silicon

Shanghai Meicheng Chemical Co., Ltd

Room 302, Building 7, No.1000, Jinhai Road, Shanghai,China, china

china china

silicon silicon

Silicon dioxide

Silicon dioxide (CAS Number: 7631-86-9) is an oxide of silicon with the chemical formula SiO2. It is also known as silica, which is a natural compound made of earth’s most abundant elements: silicon (Si) and oxygen (O2). This chemical compound is found in various living organisms and quartz.

 

Preparation

Silicon dioxide is primarily procured through mining, inclusive of sand mining and purification of quartz.

- Silica fume

The production of ferrosilicon gives silica fume as a byproduct. It has lower purity as compared to fumed silica. Silica fume differs from fumed silica in terms of particle characteristics, production process and areas of applications.

 

- Precipitated silica

Amorphous or precipitated silica is obtained through the acidification of sodium silicate solution. Silica gel is washed and dehydrated to form colorless porous silica. The reaction of trisilicate with sulfuric acid is as follows:

Na2Si3O7 + H2SO4 -> 3 SiO2 + Na2SO4 + H2O

 

- Thermal oxidation on microchips

Silica films form over silicon wafers through thermal oxidation, which is a thin layer of about 1 nm to 10 Å. Alternative environments with higher temperatures are used to produce controlled layers of silicon dioxide. This is done with a temperature range of 600 to 1200 °C through wet or dry oxidation. The reaction is as follows:

Si + O2 -> SiO2

 

- Through organosilicon compounds

Silica can be synthesized using tetraethyl orthosilicate. This is done by heating tetraethyl orthosilicate at 680 to 730 °C. The reaction is as follows:

Si(OC2H5)4 -> SiO2  + 2 O(C2H5)2

 

Applications

Silicon dioxide finds applications in the construction industryfor the manufacture of concrete. It is used in the manufacturing of metallic components, which have engineering and other applications. It is used in hydraulic fracturing of formations, which contain shale gas and tight oil.Silica is the main ingredient used in the production of glass. Silicon dioxide is used as an additive in food production, where it is used as a hygroscopic and flow agent. It is used as an anticaking agent in coffee creamers and spices. Colloidal silicon dioxide is used as a juice fining agent, which has the E number reference of E551. Hydrated silica is present in toothpaste in the form of hard abrasive to remove plaque.

 

Toxicity

Inhalation of silica and can lead tobronchitis,silicosis,lung tissue inflammation, lung cancer and systemic autoimmune diseases like rheumatoid arthritis and lupus. Its ingestion can cause irritation of the digestive tract. It may cause cancer in human beings. Prolonged exposure can lead to delayed lung injury. Silicon dioxide suppliers and distributers must be aware of this chemical’s toxicity.

 

Handling and Storage

Dust generation and accumulation must be minimized. Contact with eyes, skin and clothing should be avoided. It must not be inhaled or ingested. Silicon dioxide should only be used under a chemical fume hood. It should be stored in a tightly closed container under cool and dry conditions. Silicon dioxide suppliers must carefully handle and store this chemical.

 

Why buy Silicon dioxide from Worldofchemicals.com?

A few of the reasons why you should buy Silicon dioxide from us include:

- Global Reach: We are an online portal with Silicon dioxide suppliers and manufacturers listed from across the globe.

- Quality Assurance: With our verified list of Silicon dioxide suppliers we ensure the quality of the Silicon dioxide.

- Fast Processing: Our experts process the enquiries quickly, connecting genuine buyers and suppliers of Silicon dioxide.

- Customer Service: Communications is the key! And, our support team keeps our customers happy.

 


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