Zinc carbonate basic

Molecular Formula：
3Zn(OH)2·2ZnCO3

Alias：
Zinc subcarbonate Zinc hydroxide carbonate

Product order：

Name	Specifications	Packing	Price	Delivery
Zinc carbonate basic	CP	250g	RMB 66	Consulting service
Zinc carbonate basic	AR	250g	RMB 74.8	Consulting service

Character：
白色粉末。其组成不肯定。能溶于稀酸、氨水和碳酸铵溶液，不溶于水和醇

Quality Standard：
   
   项目Item                                           分析纯   化学纯
                                                    (AR)     (CP)
含量(以Zn计)Assay,%                               ≥ 57.5    57.0
硫酸不溶物Insoluble matters in sulfuricacid,%     ≤ 0.01    0.02
碱度Alkalinity,%                                  ≤ 0.05    0.1
氯化物(Cl)Chloride,%                              ≤ 0.002   0.004
硫酸盐(SO4)Sulfate,%                              ≤ 0.01    0.03
硝酸盐(NO3)Nitrate,%                              ≤ 0.003   0.006
铁(Fe)Iron,%                                      ≤ 0.002   0.005
砷(As)Arsenic,%                                   ≤ 0.0003  0.0005
重金属(以Pb计)Heavy metals,%                      ≤ 0.005   0.01
碱金属与碱土金属Alkali and alkali erath metals,%  ≤ 0.3     0.6

Storage：
密封保存。