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Product name: Diosmectite
CAS NO.1318-93-0
Gist:the second supplement of chinese pharmacopoeia, edition 2010
Characters: off hoary fine powder
Identification ---- silica gel test : positive
---- Aluminate :positive
----X-ray diffraction: complies
Tests-----PH : 7.7
---- Chloride: complies
---- Carbonate:complies
---- Water soluble salts:0.2%
---- Loss on drying:1.47%
---- Particle size:complies
---- Heavy metals:< 10ppm
---- Arsenic:< 2ppm
----Swelling power with water:2.7ml/g
----Adsorption strength : 0.51g/g
----Cristobalite and other impurities:Maximum height of cristobalite diffracton peak is 24% and that of other impurities is 46%
---- Microbial contaminant:complies
Assay
Al2O3: Calculated on dry basis 18.9%
SiO2: Calculated on dry basis 60.3%