CHEMICAL AND PHYSICAL PROPERTIES
Description
 
:
 
A white, fine powder, odourless, tasteless, slightly hygroscopic
Solubility : Insoluble in water, Almost completely soluble in dilute hydrochloric acid
Magnesium Oxide : 15% (14.0% to 18.0%)
Aluminium Dioxide : 22.5% (20.0% to 25.0%)
Silicon Dioxide : 53% (48.0 % to 58 %)
Total contents of
 
(MgO, Al2O3 ,SiO2 )
:

 
90% (not less than 88%)

 
Loss on Ignition
 
:
 
24.5% (20.0% to 30.0%)
Heavy Metals : Less than 20 ppm
Arsenic : Less than 8 ppm
Chloride : Less than 450 ppm
Sulphate : Less than 0.4 %
Acid consuming capacity : 183.0 ml/gm of 0.1 N HCl
Sieve Test : Passes Test
 
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