白色细微无定形粉末。无臭、无味。 不溶于水和醇，微溶于氨。能溶于稀酸和氢氧化钠中。

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

安全说明  24/25           WGK Germany  2

用途1  用作轻型收敛剂、配制炉甘石、皮肤保护剂、乳胶制品原料 
用途2 用作分析试剂，也用于制药工业 
用途3  用于轻型收敛剂和乳胶制品、皮肤保护剂、人造丝的生产和脱硫剂
密封保存