Silica glass

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Structure

Product Name: Silica glass
CAS No.: 10279-57-9
Chemical Name: Silica glass
Synonyms: SIO2;KIESELGUHR;SAND;SILICON OXIDE;QUARTZ SAND;SILICA GEL 60;SILICA SAND;SILICON (IV) OXIDE;DESICCANT;SILICIC ANHYDRIDE
CBNumber: CB7199396
Molecular Formula: H2O3Si
Formula Weight: 78.1
MOL File: 10279-57-9.mol

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Silica glass Property

Melting point:: 1610 °C(lit.)
Boiling point:: >100 °C(lit.)
Density: 2.6 g/mL at 25 °C(lit.)
refractive index: n20/D 1.544(lit.)
storage temp.: no restrictions.
form: tablets (~0.5 g each)
Water Solubility: Insoluble in water.
Exposure limits: NIOSH: IDLH 3000 mg/m3; TWA 6 mg/m3
InChI: InChI=1S/O2Si.H2O/c1-3-2;/h;1H2
InChIKey: LRCFXGAMWKDGLA-UHFFFAOYSA-N
SMILES: [Si](=O)=O.O
EPA Substance Registry System: Silica, hydrate (10279-57-9)

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Safety

Hazard Codes: Xn
Risk Statements: 48/20
Safety Statements: 22
WGK Germany: 3
RTECS: VV7340000
F: 3
HS Code: 2811 22 00
Toxicity: LD50 orally in Rabbit: > 10000 mg/kg LD50 dermal Rabbit > 5000 mg/kg

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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 1.00656
Product name: Silicic acid
Purity: precipitatedextrapureheavy
Packaging: 1kg
Price: $315
Updated: 2024/03/01

Sigma-Aldrich

Product number: 1.00656
Product name: Silicic acid
Purity: precipitatedextrapureheavy
Packaging: 20kg
Price: $2320
Updated: 2024/03/01

Sigma-Aldrich

Product number: 1.00657
Product name: Silicic acid
Purity: precipitated extra pure light
Packaging: 1KG
Price: $146
Updated: 2022/05/15

Sigma-Aldrich

Product number: 1.00657
Product name: Silicic acid
Purity: precipitated extra pure light
Packaging: 10KG
Price: $643
Updated: 2022/05/15

American Custom Chemicals Corporation

Product number: CHM0004189
Product name: SULPHOSUCCINIMIDYL 2-(3-AZIDO-2-NITROBENZAMIDO)ETHYL-1,3'-DITHIOPROPIONATE
Purity: 95.00%
Packaging: 100MG
Price: $752.14
Updated: 2021/12/16

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Silica glass Chemical Properties,Usage,Production

Structure

Silica glass is a continuous network of corner-sharing SiO4 tetrahedra where each oxygen bridges two tetrahedra (i.e. only Q4 speciation). However, a more complex system might contain 75% Q3 (tetrahedra with one free non-bridging oxygen) and 25% Q2 (two non-bridging oxygens). For silica glasses, the first diffraction peak, Q1, has been associated with intermediate-range ordering with a periodicity of 2π/Q1 ~ 6 Å. This ordering beyond the first few nearest neighbour tetrahedra arises from the boundaries between successions of cages comprising a 3-D covalent network structure. Therefore, the position and shape of the first sharp diffraction peak Q1 can provide information on different-sized ring distributions within the material. The second diffraction peak at position Q2 has been linked to chemical or extended range ordering with a periodicity of 2π/Q2 ~ 3 Å, and the local Si–O–Si and O–Si–O bond-angle distributions can persist to distances as large as > 5 Å.

Uses

Typical properties: S.A.250m^2/gSilicon oxide is used as a catalyst support material having a high surface area. It acts as a medium to which catalyst is affixed. Several metals such as platinum, rhodium, ruthenium, silver, copper, nickel, iron, manganese, cobalt, tungsten and gold are supported over silicon dioxide and used as a catalyst in synthetic chemistry for various applications. For example, silica-supported gold catalysts is used for carbon monoxide oxidation by a solution-based technique.

Silica glass Preparation Products And Raw materials

Raw materials

Tetrachlorosilane Quartz Fumed Silica

Preparation Products

PotassiumSodiumSilicate Rubber mixings of silicone rubber Chlorbenzuron suspensoid Silicone rubber,methyl-vinyl Silicon dioxide GP-1084-1 cellular silicone rubber false eye supporte

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View Lastest Price from Silica glass manufacturers

Hebei Andu Technology Com.,Ltd

Product: White carbon black 10279-57-9
Price: US $3.50/kg
Min. Order: 1kg
Purity: ≥98%
Supply Ability: 3000tons/month
Release date: 2024-07-22

airuikechemical co., ltd.

Product: Silicon dioxide 10279-57-9
Price: US $0.00-0.00/Kg
Min. Order: 1Kg
Purity: 99.9%
Supply Ability: 200tons
Release date: 2024-03-26

Yujiang Chemical (Shandong) Co.,Ltd.

Product: Silica glass 10279-57-9
Price: US $1120.00/T
Min. Order: 1T
Purity: 98%
Supply Ability: 20T
Release date: 2024-04-30

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POLYGOSIL(R) 60-10