Silica Gel CAS#112926-00-8

  • CAS Number: 112926-00-8

  • Chemical Formula: O2Si

  • Synonyms:

    • Silica gel GF Pre-coated Plate for TLC

    • High Silica gel HF254 Pre-coated Plate for TLC

    • Silica gel H Pre-coated Plate for TLC

    Appearance: Blue Powder

  • MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)



Product Details

Silica Gel CAS#112926-00-8

A gel made by coagulating sodium silicate sol. The gel is dried by heatheating and used as a catalyst support and as a drying agent. The silica gel used in desiccators and in packaging to remove moisture is often colored with a cobalt salt to indicate whether it is still active (blue=dry; pink=moist).

A rigid gel made by coagulatinga sol of sodium silicate andheating to drive off water. It is usedas a support for catalysts and also asa drying agent because it readily absorbsmoisture from the air. The gelitself is colourless but, when used indesiccators, etc., a blue cobalt salt isadded. As moisture is taken up, thesalt turns pink, indicating that thegel needs to be regenerated (by heating).

Silica gel is a rigid 3D network of colloidal silica. It is exclusively used as a support material for the active titanium(III) centers in Ziegler-Natta catalysts. Silica gel allows a controlled fragmentation lresulting in the formation of uniform polymer particles with narrow particle size distribution and high bulk density. Silica gel is classified as below:
a. Aquagel - pores are filled with water
b. Xerogel - by the process of evaporation, aqueous phase in the pores are removed
c. Aerogel - solvent removed by supercritical extraction

Silica gel Chemical Properties
Melting point 1610°C
Boiling point 2230℃
bulk density750-800kg/m3
density 2.6
Fp 23°C
storage temp. 2-8°C
form powder or granules
Specific Gravity0.88g/ml
color blue
OdorOdorless
PH~6.8 (10% in aq. suspension)
PH RangeAbout 7.0
Water Solubility Insoluble in water
Hydrolytic Sensitivity6: forms irreversible hydrate
Merck 14,8493
Cosmetics Ingredients FunctionsOPACIFYING
ABSORBENT
ABRASIVE
VISCOSITY CONTROLLING
ANTICAKING
BULKING
CAS DataBase Reference112926-00-8
EPA Substance Registry SystemSilica gel, pptd., cryst.-free (112926-00-8)

Safety Information
Hazard Codes Xi,T,N,Xn
Risk Statements 20-37-42/43-49-36/37-48/20-51/53-68-50/53-41-22-60
Safety Statements 22-24/25-45-36/37-53-26-36-61-60-39
OEBB
OELTWA: 6.0 mg/m3
RIDADR 1993
WGK Germany 2
RTECS VV7315000
3
Hazard Note Harmful/Irritant
TSCA Yes


Product Application of Silica Gel CAS#112926-00-8

Silica gel was used on glass plates for preparative TLC and on aluminium sheets for analytical TLC. Silica gel was used in vacuum chromatography and TLC. Silica gel was used in column chromatography.

Silica Gel, 40-63 Micron Particles (cas# 112926-00-8) is a compound useful in organic synthesis.

Silica gel was used to compare MCM-41 type mesoporous adsorbents.


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