... , insoluble in ethanolApplication: used as friction agent to make high-grade toothpaste in daily-use chemicals, also as swelling agent,nutritional ... :% ≤ 0.2Carbonate, through experiment Chloride (by C1) Content, % ≤ 0.03Fluoride (F) Content, % ≤0.005Sulfide, through experimentArsenic ppm ≤ 3Heavy Metal ppm ≤30 ... /ml 1.3-1.5 Anhydrous Calcium Hydrogen Phosphate (Food-grade)