Technical Data
 
ITEM Basic sodium type Acidic non-stabilizer type Typical values
JN--20 JN--25 JN--30 JN--40 SW--20 SW--25 SW--30 JN--25 SW--25
SiO2, % 20.0-21.0 25.0-26.0 30.0-31.0 40.0-41.0 20.0-21.0 25.0-26.0 30.0-31.0 30.3 25.6
Na2O, % 0.30 0.30 0.30 0.40 0.04 0.05 0.06 0.25 0.04
pH value 8.5-10.0 8.5-10.0 8.5-10.0 9.0-10.5 2.4-4.0 2.4-4.0 2.4-4.0 9.6 2.8
Viscosity (25),mp a.s 5.0 6.0 7.0 25.0 5.0 6.0 7.0 5.4 3.0
Density (25),g/cm3 1.12-1.14 1.15-1.17 1.19-1.21 1.28-1.30 1.12-1.14 1.15-1.1 1.19-1.21 1.20 1.16
Average particle diameter,nm 8-20 8-20 8-20 8-20 8-20 8-20 8-20 11 10
 
[Term of validity]
One year for the alkali based, half a year for the acid based.