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  electronic clear – 8 kg;
  • GeO2  fine – 5 kg.

Outer package - cartoon box.

Send request

Molecular weight

104,6

Crystal structure

hexagonal

Density (293 К), g/cm3

4,280

Melting temperature, °С

1116,0

Refractive coefficient

1,7

 

Quality parameters

(analysis)
Marks

Methods

of determination

GeO2

standard

GeO2

electronic

GeO2 for PET and Catalysis, others

Fine

Soluble

overdried

calcined

Purity, % weight 99.9999 99.9999 99.9999 99.9999 99.9999  
Apparent density,g/cm3 1.3-1.7 1.3-1.7 0.5-0.7 0.5-1.0 0.5-1.0 Volumetry 
Sum of moisture and ignition loss, not more than, % weight 3.0 2.5 0.5 3.5 0.5 Gravimetry
Chlorine content (Cl-) not more than, % 0.05 0.05 0.01 0.05 0.05

Titrimetrical

nephelometrical

Metal impurities content, sum (As, Co, Cr, Cu, Fe, Mn, Ni) not more than, % weight     0.0001 0.0001 0.0001

Emission

spectroscopy
Sum (As, Co, Cr, Cu, Fe, Ga, Mn, Ni, Al, Si, Mg) not more than, % weight 0.0001 0.0001        
Standard solubility in water according to test, not less than, % weight     99.9 99.9  

Test: 1 g of  GeO2 in  100 ml of  Н2О when boiling under reflux for 1 hour

Solubility in ethyleneglycol according to test, not less than, % weight       99.9   10 g  min of   GeO2  for 1 litre of ethyleneglycol according to test test for solubility in ethyleneglycol: according to test
 

[1] test for solubility in ethyleneglycol:

  1. full solubility of GeO2 10 g  min in  1.25 litres of  Н2О when boiling under reflux;
  2. adding1 litre of ethyleneglycol;
  3. full distillation of Н2О from the mixture;
  4. the rest solution  GeO2  in ethyleneglycol (10g/l) after Н2О distillation is transparent.