Characteristics

Characteristics

There are state standard documents:

  • for sodium silicate – GOST 13078-81 (download GOST 13078-81 .doc 137KB);
  • for potassium silicate – GOST 18958-73 (download GOST 18958-73 .doc 102KB).

The main characteristics of soluble glass:

Parameter

According to GOST 13078- 81

According to GOST 18958-73

Silicate module

2,3 – 3,6

2,5 – 4,0

Density, t=200С, gr/cm3

1,45 – 1,50

1,30 – 1,40

Mass content of silicon dioxide,%

22,7 – 36,7

20,0 – 26,0

Mass content of sodium and potassium oxide, %

7,9 – 13,8

10,2 – 12,5

Mass content of bottom product insoluble in water, %

1,8

1,8

According to state standard GOST 13078-81 soluble glass can be divided in three main types:

  1. Low-modulus with silica module of 2,3-2,8;
  2. Normal with silica module of 2,8-3,2;
  3. High-modulus with silica module of 3,2-3,6.

Sodium silicate with silica module of 2.8-3.0 and density of 1.48gram/cm3 is the most widespread.