CHEMICAL AND PHYSICAL PROPERTIES
Description : White or almost white crystalline powder.
Identification : (A) Positive test for Magnesium.
  (B) Positive test for Aluminium.
PH : 9.3 to 9.4 ( 9.1 to 9.7)
Neutralising Capacity : 18.69 ml 0.1 N (NMT 20.0 ml 0.1 M NaOH)
Chlorides : Passes EP test (NMT 0.1%)
Sulphates : Passes EP test (NMT 0.4%)
Sodium : Passes EP test (NMT 150 ppm)
Heavy Metals : Passes EP test (NMT 20 ppm)
Sulphated Ash : Passes EP test (NMT 0.1%)
Loss on ignition : 45.60% (43% to 49%)
Aluminium Assay : 16.42% (15% to 17% calculated as Al2O3)
Magnesium Assay : 37.22% (36% to 40% calculated as MgO)
Carbonic Acid : 14.00% (12.5% to 14.5% calculated as CO2)
 
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