Expanded vermiculite

الوصف

   Exfoliated (expanded) vermiculite: 
0,5 Micron,1 Superfine,2 Fine,4 Medium,8 Large
Vermiculite - natural, non-toxic material, produces in the special stoves by burning. 
It possesses high fire-resistance properties (up to ***0 degrees Celsius) and low thermal conductivity properties (from 0,*7 watt per meter-Kelvin).It is also a good  absorbent.
Vermiculite has considerable reflecting ability, the range of temperatures for use is from ***0 to ****0 degrees Celsius. 

 SiO2               *5 - *1%

Thermal Conductivity:          0.**3 - 0.**9 W/mºC under ambient conditions

Angle of Repose:                  *8º to *6º according to grade

Specific Heat:                                   1.*3 kJ/kg.K. at *0ºC 1.*5 kJ/kg.K. at *0ºC

Specific Gravity:                   2.5 to 2.6 depending on the grade

Mohs Hardness:                    Between 1 & 2

pH Value:                              8.5 to *0

Weight Loss:                         At **5ºC - 4.5 to 6.5%.At *5ºC - 8.0 - *0.0%