... at 622 o C, easily soluble in water, with remarkable chelating ability to some metal ... as Ca 2+, Mg 2+, can soften hard water, change suspension into solution, slightly alkaline, without ... main auxiliary of synthetic wash, soap synergistic agent, water softener, leather pre-tanning agent, dye auxiliary agent ... weight 25kg, 50kg or 1000kg; Keep away from water or moisture, do not pile up in the ...