产品性状 淡蓝绿色结晶。总氮量(N),% ≤0.001氯化物(Cl),% ≤0.001磷酸盐(PO4),% ≤0.0005水不溶物,% ≤0.005锰(Mn),% ≤0.05铜(Cu),% ≤0.002锌(Zn),% ≤0.005砷(As),% ≤0.0002铅(Pb),% ≤0.002氨水不沉淀物(以硫酸盐计),% ≤0.05高铁(Fe),% ≤0.02含量,% 99.0~101.0