... CAS No.: 10124-56-8 F.W.: 611.77 Food grade-Sodium Hexametaphosphate 68%Property:white powder,density is 2.484 ... (20 degree C),easily soluble in water,but not on organic solution,absorbent to dampness,and furn sticken when absorbed ... )--------0.003% maxWater insoluble0.05%max0.06% maxApplication:For food grade, it is mainly used as additive agent,PH adjusting agent ...