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
子的干扰，用甲醛法测定复合肥中的总氮。
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，消除磷子的干扰，用甲醛法测定复合肥中的总氮。
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
铝、铝化钙和石灰为原料,引入子,产品的
能大大提高。
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