Germanium dioxide

Package

Double polyethylene bag packed in a plastic bucket (capacity of 10 or 12 litres) containing GeO2 net weight:

  • GeO2  standard – 10 kg
  • GeO2  soluble overdried – 5 kg
  • GeO2  soluble anneal– 10 kg
  • GeO2  fine – 5 kg
  • GeO2  electronic clear – 8 kg;

Outer package - cartoon box.

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Quality parameters

(analisys)

Mark

GeO2 electronic

Chemical purity, % weight, not less

99,9999

Apparent density, g/cm3

1,15 - 1,7

Sum of ignition loss (Т=800˚С), diried at Т=105˚С, not more than, % weight

2,0

Fe content, not more than,  % weight

2 х 10-5

Cr content, not more than,  % weight

5 х 10-6

Mn content,  not more than,  % weight

2 х 10-6

Ni content,  not more than,  % weight

2 х 10-6

Co content,  not more than,  % weight

2 х 10-6

Pb content,  not more than,  % weight

1 х 10-5

Mass fraction of  chloride content (Cl-), %,  not more than,  % weight

0,01

Grain size, um

Not more than 30

Quality parameters

Marks

Mark 1

(overdyed)

Mark 2

(calcined)

Mark 3

(fine)

Chemical purity, % weight, not less

99,9999

99,9999

99,9999

Metal impurities content, sum (As, Co, Cr, Cu, Fe, Mn, Ni), not more than, % weight.

0,0001

0,0001

0,0001

Apparent density, g/cm3

0,5-1,0

0,5 - 1,0

0,5-0,7

Sum of moisture and ignition loss, not more than, % weight

-

0,5

0,5

Loss at ignition (Т=800˚С) of dioxide dried at Т=105˚С, not more than, % weight

3,0

-

-

Moisture content (Т=105˚С), not more than, %, weight

0,5

-

-

Chlorine content (Cl-) not more than, %

0,05

0,05

0,01

Standard solubility in water according to test, not less than, % weight

99,9

-

99,9

Solubility in ethyleneglycol according to test, not less than, % weight

99,9

-

-

Grain size, um

Less than 20, average 10

Less than 10, average 2-3

Quality parameters

Mark

GeO2 standard

Chemical purity,  not less % weight

99,9999

Apparent density, g/cm3

1.3-1.7

Sum of moisture and ignition loss, not more than, % weight

3.0

Chlorine content (Cl-) not more than, %

0.05

Metal impurities content (As,Co,Cr,Cu,Fe, Mn,Ni)  not more than, % weight.

 

Sum of (As, Co, Cr, Cu, Fe, Ga,

Mn, Ni, Al, Si, Mg) not more than, % weight

0.0001

Standard solubility in water according to test, not less than, % weight

 

Solubility in ethyleneglycol according to test, not less than, % weight

 

Grain size, um

less than 50, average 30