
6 posts
TimePosted
04/06/2021 17:14:39
R&D
says
Free Silica
sir
please give the clarification of XRD Quantitative Quartz & Free Silica in Limestone by ASTM Method both are same or different.
pls clarify my doubts
Regards
Nagu
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4 posts
TimePosted
04/08/2021 07:20:12
Dilip Yadav
says
re Free Silica
Free Silica and Quartz both are different
Free Silica is mainly SiO2 and it has a mixture of Amorphouse and Crystaline Silica, whereas Quartz has impurity of Iron / Manganese / Calcium with crystaline form of silica.
Free Silica can be determined by conventional methods but Quartz can be determined by microscopy or XRD only.
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