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Postion:Product Catalog >Inorganic chemistry>Oxides and peroxides>non-metals oxides and peroxides>Silicon dioxide
Silicon dioxide
  • Silicon dioxide
  • Silicon dioxide
  • Silicon dioxide
  • Silicon dioxide
  • Silicon dioxide

Silicon dioxide NEW

Price Get Latest Price
Package 1kg 25kg
Min. Order: 1kg
Supply Ability: 1000kg
Update Time: 2026-06-03

Product Details

Product Name: Silicon dioxide CAS No.: 7631-86-9
EC-No.: 231-545-4 Min. Order: 1kg
Purity: 99.2% Supply Ability: 1000kg
Release date: 2026/06/03

Silicon dioxide (chemical formula: SiO?), commonly known as silica, is an oxide of silicon. Here's a concise overview:

Key Chemical Properties

  • Structure:

  • Crystalline forms (e.g., quartz, tridymite, cristobalite) with tetrahedral SiO? units.

    Amorphous forms (e.g., glass, diatomaceous earth).

  • Physical Traits:

  • Hardbrittle solid (Mohs hardness: 7 for quartz).

    High melting point (~1,700°C), chemically inert, insoluble in water/acid (except HF).

    Excellent electrical insulator and UV-transparent.

 Natural Occurrence

  • Abundant in nature: Quartz (rocks, sand), flintagate, and biogenic sources (diatom skeletons).

 Major Applications

FieldUse
Glass/CeramicsPrimary raw material (~70% of glass).
SemiconductorsCritical in silicon wafer production.
Food/PharmaAnti-caking agent (E551), tablet binder.
ConstructionSand for concrete; silica fume additive.
CosmeticsAbsorbent (e.g., toothpaste abrasives).

?? Safety

  • Non-toxic but crystalline silica dust (e.g., quartz) is carcinogenic when inhaled.

  • Amorphous silica (e.g., food-grade) is generally safe.

Summary: Silicon dioxide’s versatility—from geological stability to industrial utility—stems from its structural diversity and inertness, underpinning technologies from microchips to skyscrapers.

Article illustration

Article illustration

Article illustration


Company Profile Introduction

Wuhan Fortuna Chemical Co.,Ltd established in 2006, is a big integrative chemical enterprise being engaged in Pharmaceutical & its intermediates, Food/Feed additives, Fine chemicals in distributing the products of our own company and affiliated enterprises, are the members of Hubei E-commerce Chamber. Our company has professional persons who major in chemical R&D and sicentific management, supply fine chemical products with high quality and close service, also supply custom-tailored products according to our clients' requirement. We have a positive and self-motivated management work team with a common philosophy, caring and commitment through teamwork, our team strive to achieve success in delighting our clients and ourselves. Since Wuhan Fortuna Chemical Co., Ltd founded, we continuously innovate our products and improve our service, sales network. Hence, we initiate the first sale mode on net in China, which is the retail trade of small package bring along wholesale of diversified management modes. Our products are exported widely to South Korea, Vietnam, Australia, Europe and South America, highly recommended by our clients.We insist on the management creed “Market is our compass, Quality is our life, Credit is our soul”. Clients’ trust is our forward powder, their satisfaction is our struggling goal.

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  • Since: 2006-04-03
  • Address: Room 2015, No.2 Building Kaixin Mansion, No.107 Jinqiao Ave, Wuhan, China
INQUIRY
Betty Shu

info@fortunachem.com
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