Ferric chloride is an important water treatment agent. It is a aqueous solution, produced by chlorine

　　　　Ferric chloride is an important water treatment agent. It is a aqueous solution, produced by chlorine oxidation of ferrous chloride. Its prominent feature is the quality purity, ferric content is high. Its real features are that it not only has the function of coagulant to remove impurities in water, and has flocculation function of coagulant aid, so it has the versatility.

　　　　Ferric chloride react with hydrogen sulfide (H2S), phosphate (PO4), arsenate (AsO4), and hydroxyl basicity (OH) which in water to generate sediment. In drinking water treatment, however, the main purpose of ferric chloride is that products generated by ferric chloride reaction with hydroxyl basicity have the effect of flocculant and coagulant aid.

　　　　Ferric chloride react with hydroxide alkalinity to generate a variety of hydrolysate in water, then combined into Fe(OH)3. the hydrolysate with a lot of positive charge able to neutralize the negative charge on the colloidal particles, and combine with negatively charged particles and Ferric hydroxide. Due to the combining capacity, ferric chloride has flocculating capacity and form alum flowers.

Ferric chloride is an important water treatment agent. It is a aqueous solution, produced by chlorine 2012-12-22 ��ı��Ķ� 3098 ��