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Home > Products > Catalysts And Auxiliaries > Adsorbents > SILICA 99% CAS NO 10279-57-9

SILICA  99% CAS NO 10279-57-9

SILICA 99% CAS NO 10279-57-9

Payment Type: L/C
Incoterm: FOB,CIF
Min. Order: 20 Kilogram
Delivery Time: 5 Days

Basic Info

    Model No.: cy10279-57-9

Additional Info

    Packaging: 20kg

    Productivity: 10000

    Brand: cy

    Transportation: Ocean,Land,Air

    Place of Origin: China

    Supply Ability: 50

    Certificate: Enterprise standard

    Port: QINGDAO

Product Description


SILICA 99% CAS NO 10279-57-9

Silica is the general name of white powder X-ray amorphous silicate and silicate products, mainly refers to precipitated silica, fumed silica and ultra-fine silica gel, also includes powdered synthesis of aluminum silicate and calcium silicate. Silica is a porous material. Its composition can be expressed by SiO2 nH2O, in which nH2O exists in the form of surface hydroxyl groups. Soluble in caustic soda and hydrofluoric acid, insoluble in water, solvent and acid (except hydrofluoric acid). High temperature, non combustible, tasteless, odorless, good electrical insulation.


White Carbon Black

Chinese alias: silica (combustion method); fumed silica; granulated silica; medicinal grade silica; GH-7 silica; GH-1A silica; GH-1B silica; hydrated silica; white carbon black; white smoke; precipitated hydrated silica; pure emulsion; colloidal silica; precipitated silica

English Name: Silica

English alias: combustion method; Pelleted Hydrated Silica; Hydrated Silica; Silicondioxidehydrate; Silica, hydrate; SILICA; Precipitated silica;

CAS: 10279-57-9

White carbon black

White carbon black

EINECS: 238-878-4

Molecular formula: SiO2.x (H2O)

Melting point: 1610 degrees C (lit.)

Boiling point: >100 degree C (lit.)

Density: 2.6 g/mL at 25 degree C (lit.)

Refractive index: n20/D 1.544 (lit.)

Storage conditions: 2-8 degrees C

Form tablets (~0.5 g each)

1. Physical properties

Appearance: white powder or granular or irregular block.

True density: about 2.0g/ml false density: about 0.2g/ml (common product).

High temperature resistance, no combustion, good electrical insulation.

2, chemical properties:

It can react with caustic soda SiO2nH2O+2NaOH=Na2SiO3+ (n+1) H2O.

It can react with hydrofluoric acid SiO2nH2O+4HF=SiF4+ (n+2) H2O.

3. Main chemical indicators

SiO2 content (dry product) is more than 90%.

Sieve residue (4.5 m) is less than 0.5%.

Heating reduction: 4.0-8.0%

Ignition reduction: (dry product) less than 7%

PH: 5.0-8.0

Total copper content: less than 30mg/kg

Total manganese content: less than 50mg/kg

Total iron content: less than 1000mg/kg

DBP absorption value: 2.00-3.50cm/g

Specific surface area: different uses have different ranges, general 145-165m/g (HT2) 165-185m/g (HT1).

200-300m/g (HT3)

3. Main physical properties (with rubber products)

The tensile strength is greater than or equal to 17.0Mpa 500% and the elongation is greater than 6.3Mpa.

Breaking elongation is greater than or equal to 675%.

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Product Categories : Catalysts And Auxiliaries > Adsorbents

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