Designation

Standards

ZS-20

ZS-25

ZS-30

Appearance

Slight?milky?transparent?to?translucent?liquid

SiO2?(wt%)

20±1%

25±1%

30±1%

Na2O?(wt%)

≤0.2%

PH?(20°C)

6.5-8.0

Density?(20°C,?g/cm3)

1.12-1.14

1.15-1.17

1.19-1.21

Viscosity(20°C,?mPa?S)

≤10

Particle?size?(nm)

8-15

Stability

Six?months