... Super Dispersion) SmectiteNanometer montmorillonite belongs to smectite(including calcium,sodium,sodium-calcium,magnesium smectite),made from shelling,dispersing,purifying,grading and ... with the manufacturing and the trading of titanium dioxide,Calcium hydroxide,Calcium carbonate,Silicon dioxide,Pulvistalci.etc.We have our ... . Welcome to Shanghai Yuantai Chemical!Thank you Bentonite Powder China Clay