1. Indlela yokunciphisa amalahle aputshuziwe, i-mirabilite kanye namalahle ahlutshiwe axutshwe ngesilinganiso se-100: (21-22.5) (isisindo sesisindo) futhi i-calcined futhi iyancipha ekushiseni okuphezulu kwe-800-1100 ° C, futhi umphumela upholile futhi ufudumala incibilike oketshezini olune-lye encibilikayo , ngemva kokumela i-clarifica...
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