Table 2.

Properties of sodium silicate and reactants

Sodium silicateColouringColourless, clear liquid
FormulationNa2SiO3
Weight modules (SiO2/NaO)3.0–3.3
Molecular modules (SiO2/NaO)3.1–3.4
Be′ (20°C)39–41
Density (20°C, gr cm-3)1.37–1.39
Na2O (%)8.5–9.5
SiO2 (%)26.0–28.0
pH (20°C)11.66
Viscosity (20°C, cP)75–150
FormamideColouringColourless, clear liquid
FormulationCH3NO
Molar weight (gr mol-1)45.08
Density (20°C, gr cm-3)1.13
pH (200 gr l-1 20°C)8.0
Viscosity (20°C, cP)3.75
GlyoxalColouringClear colourless to yellow liquid
FormulationC2H2O2
Molar weight (gr mol-1)58.04
Density (20°C, gr cm-3)1.27
pH (20°C)2.1–2.7
Viscosity (20°C, cP)2.0–4.0
Acetic Acid0.25% max.