Physical analysis

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Physical analysis of perlite            

 

 

 

     White

Color

 

 

             80_85

Transparency

 

 

    47.1

                 Refractive index

 

 

        2.34 g/Cm3

Specific gravity

 

 

        45_100 Kg/m3

Appearance density

 

 

               871_1093 C°

Softening point

 

 

      1260_1343 C°

Melting point

 

 

    873 J/Kg.K

Specific temperature

 

 

           0.04_0.06 w/m.k

             0.27_0.41 Btu.in/h.ft2.F°

            Thermal conductivity at 24 C°

 

 

Soluble in alkaline concentrate and fluoride acid, almost soluble (less than 10%) in caustic soda, normal precipitate, slightly soluble (less than 3%) in mineral acids

Solubility