# Features

## Density

The density of a solution is defined in gr/cc (SG), ° Beaumè or ° Twaddell linked by the following equations:

Equations ° Beaumè
°Be =145(1 – 1/SG) SG = 145(145 -°Be)

°Tw = 200(SG – 1) SG = 1 + (Tw/200)

## Molar ratio

The molar ratio (MR) defines the ratio between the molars of SiO2 and the molars of alkali metal oxide (Na2O, K2O, Li2O).

## Weight ratio

The molar ratio (MR) defines the ratio between the weight of SiO2 and the weight of alkali metal oxide (Na2O, K2O, Li2O). The correspondences between the two are as follows:

Waterglass MR = 1,032 WR

Potassium silicate MR = 1,568 WR

Lithium silicate MR = 0,497 WR

## Dry content

The dry content on the other hand defines the ratio between the weight of SiO2 and the weight of alkali metal oxide (Na2O, K2O, Li2O).

Equazione ° Beaumè
°Be =145(1 – 1/SG) SG = 145(145 -°Be)

## Viscosity

The viscosity of a silicate solution is important for both the quality in the application stage as well as the manipulation and storage of the silicate itself. There are three factors that determine the viscosity: dry matter, ratio and temperature, and at Crosfield it is expressed in centipoise (cps) or in millipascal/second (mps).

## Specific heat

The specific heat of the main solutions produced by Crosfield is approximately 3.1 KJ/Kg°C.

## Solubility

The solubility is complete but in the presence of dilutions with water containing Ca or Mg you can achieve the formation of insoluble silicates of the two ions.