sodium fluoride

Chemical Formula: NaF
Molecular Weight: 42
Specifications: granular,crystal, powder (totally through 120 mesh sieve)
Grade
Chemical Constituent
NaF
SiO2
Acidity
Na2CO3
sulfate radical SO42-
water insoluble matters
Moisture H2O
%min
%Max.
1
98
0.5
0.1
0.5
0.3
0.7
0.5
2
95
1.0
0.1
1.0
0.5
3
1.0
3
84
0.1
2.0
2.0
10
1.5

Physicochemical Properties:It is colorless luminescent crystal or white powder, slightly soluble in alcohol and water. The liquid is alkali, corrosive, poisonous. Its melting point is 992,the boiling point is 1704¡æ and the density is 2.78g/cm3, the solubility is 4g/100gH2O(0),5g/100g H2O(100).
Use: Mainly applied in the processing of boiling steel, fluoridation of drinking water, pesticide, light metal smelting and refining, cleaning liquor of steel and other metal, welding fluid, pottery and porcelain glass and porcelain enamel light screening agent, raw hide and scarf skin treatment in leather industry, timber preservation.

Packing: The external packaging is plastic weaving bag, and the inner packing is plastic film, each 25kg in net weight.




 Carbon White

General Name:precipitable Carbon White
Molecular Formula: SiO2.nH2O
Molecular Weight: 60
Technical Index:
SiO2 % Content
90%
10% dispersion medium pH
6.0-8.0
Heating Loss %
4.5-7.0
Loss on Ignition %
3-6
Surface specific area m2/g
100-150
BP adsorptive value cm3/g
D2.0-3.5

Use: Mainly used as bulking agent of tyre, plastic shoes sole, also used in pesticide, dope and other silicon compound.

Packing: External packing is weaving bag and the inner packing is plastic film, each is 20kg in net weight.


 
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