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  • Product NameSilicon dioxide
  • Molecular FormulaSiO2
  • Molecular Weight60.09
  • Purity99%
  • AppearanceWhite powder

Product Details

Quick Details

  • CasNo: 112945-52-5
  • Molecular Formula: SiO2
  • Appearance: White powder
  • Purity: 99%

Hot Sale! Factory sells top purity 112945-52-5 powder, in bulk supply, fast delivery, reasonable price. Quality products make an important contribution to long-term revenue and profitability.

1.What is the Silicon dioxide ?

Silicon dioxide (silica, SiO 2 , SAS) is produced in high volumes and applied in many consumer and food products.. This product contains no detectable crystalline silica. The ash of rice straw has a high component of silicon dioxide (SiO2).

Hydrophilic fumed silica



surface area [m2/g]


on drying [wt.%]



on ignition [wt.%]

Sieve residue [mg/kg]

Silica content [wt.%]

Tamped density [g/L]


150 ± 15

≤ 1.5

3.9 ~ 4.5

≤ 2.0

≤ 250

≥ 99.8

40 ~ 60


200 ± 20

≤ 2.0

3.9 ~ 4.5

≤ 2.0

≤ 250

≥ 99.8

40 ~ 60


300 ± 25

≤ 2.0

3.7 ~ 4.5

≤ 2.5

≤ 250

≥ 99.8

40 ~ 60


380 ± 30

≤ 2.5

3.7 ~ 4.5

≤ 2.5

≤ 250

≥ 99.8

40 ~ 60


2.What is the CAS number for Silicon dioxide ?

The CAS number of Silicon dioxide is 112945-52-5.

More information of Silicon dioxide 112945-52-5 are:

CAS Number



2.3lb/cu.ftat 25°C (bulk density)(lit.)

Melting Point

>1600 °C

Boiling Point


Refractive Index

n20/D 1.46(lit.)







3.What are another words for Silicon dioxide ?

Synonyms for Silicon dioxide 112945-52-5:Silica, amorphous,fumed, cryst.-free;Amorphous silica: Pyrogenic (fumed);Fumed silica, crystalline-free;Fumed synthetic amorphous silica;Aquafil;

4.What is the molecular formula of Silicon dioxide?

The chemical formula of  Silicon dioxide is SiO2 which containing 1 Silicon atoms and 2 Oxygen atoms,and the molecular weight of  Silicon dioxide is 60.09.

5.What is Silicon dioxide (112945-52-5) used for?

Silicon dioxide or commonly called silica is a material that has quite huge benefits in the industrial field and everyday life. Silicon dioxide can be used as a building raw material as well as in food and beverage packaging. The properties of silicon dioxide that make it ideal for MOSFETs are numerous. SiO2 has a wide bandgap, 9eV, which makes it a very good insulator between the gate of the device and the channel. 


Relevant articles related to Silicon dioxide:



Achieving a high figure of merit in LDMOSFETs with double P-window in silicon dioxide

This new proposed LDMOS consists of the double p-window located in the buried silicon dioxide’s depth, leading to an extra peak in the electric field curve…

Silicon volume 15, pages109–115 (2023)

Mechanical and Tribological Properties of Polytetrafluoroethylene Modified with Combined Fillers: Carbon Fibers, Zirconium Dioxide, Silicon Dioxide and Boron Nitride

Zirconium dioxide and silicon dioxide have attracted increasing interest among nanosized ceramic fillers in recent years. Modification of polymers with zirconium dioxide and silicon dioxide leads to the production of polymer composites with improved tribological and mechanical properties…

Polymers 2023, 15(2), 313;

6.Factory sells top purity 112945-52-5 powder, fast delivery, reasonable price.

Shanghai yixiang chemical co., ltd. is a good factory of Silicon dioxide. Our main goal is customer satisfaction. Contact us to negotiate the reasonable price for your business on top purity Silicon dioxide 112945-52-5 powder.

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