With calcium chloride precipitant to eliminate the interference of PO43-, total nitrogen in compound fertilizer is determined by formol method.
用氯化钙作沉淀剂，消除磷酸根离子
干扰，用甲醛法测定复合肥
氮。
With calcium chloride precipitant to eliminate the interference of PO43-, total nitrogen in compound fertilizer is determined by formol method.
用氯化钙作沉淀剂，消除磷酸根离子干扰，用甲醛法测定复合肥氮。
Aluminum sulfate, calcium chloride and lime are taken as raw materials.The products have high flocculability because of the existing of sulfate ion .
该工艺以
酸铝、铝化钙
为原料,引入酸根离子,产品絮凝性能大大提高。
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