114. Solving a chemistry problem

360. The coagulation thresholds of arsenic sulfide sol for potassium nitrate, magnesium chloride and aluminum chloride, respectively, are 50, 0.72 and 0.093 mmol / l. How do the coagulating abilities of electrolytes correlate with each other? Do cations or anions cause coagulation? Justify the answer. Write the micelle formula for arsenic sulfide sol.