... -16mesh,14-20mesh,16-32mesh,20-40mesh MOQ:5 ton/tons Trade terms:FOB CFR CIF Payment term:T ... -16mesh,14-20mesh,16-32mesh,20-40mesh MOQ:5 ton/tons Trade terms:FOB CFR CIF Payment term: ... -74Specific gravity2.2-2.4g/ccAl2O312-16Vickers hardness5.5-7Fe2O30.1-2Softening point890-1090CaO0.15-1.5Melting ... point1280-1350Na2O4-5PH6.5-7.5K2O1-4Liquid solubility<1%Loss in burning4- ...