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。其組成不肯定。能溶于稀酸、氨水和碳酸銨溶液，不溶于水和醇

Quality Standard：
   
   項(xiàng)目Item                                           分析純   化學(xué)純
                                                    (AR)     (CP)
含量(以Zn計(jì))Assay,%                               ≥ 57.5    57.0
硫酸不溶物Insoluble matters in sulfuricacid,%     ≤ 0.01    0.02
堿度Alkalinity,%                                  ≤ 0.05    0.1
氯化物(Cl)Chloride,%                              ≤ 0.002   0.004
硫酸鹽(SO4)Sulfate,%                              ≤ 0.01    0.03
硝酸鹽(NO3)Nitrate,%                              ≤ 0.003   0.006
鐵(Fe)Iron,%                                      ≤ 0.002   0.005
砷(As)Arsenic,%                                   ≤ 0.0003  0.0005
重金屬(以Pb計(jì))Heavy metals,%                      ≤ 0.005   0.01
堿金屬與堿土金屬Alkali and alkali erath metals,%  ≤ 0.3     0.6

Storage：
密封保存。