红色棱形结晶，易潮解比重 1.87 。易溶于水、乙醇、丙酮，微溶于 氨水，与有机物接触能爆炸和燃烧。 

AR / 4N / SP  / 97% / 98%                 
Co(NO3)2 · 6H2O            ≥ 98                     ≥97.0
镍(Ni)                                 ≤ 0.05                     ≤0.05         
铜(Cu)                                ≤ 0.005                   ≤0.001
铁(Fe)                                ≤ 0.005 
锰(Mn)                               ≤ 0.005 
锌(Zn)                                ≤ 0.01                      ≤0.003
钙(Ca)                               ≤ 0.01 
镁(Mg)                               ≤ 0.01 
钠(Na)                               ≤ 0.002 
Cl-                                     ≤ 0.005                    ≤0.005
SO42-                               ≤ 0.01 
水不溶物(Insoluble matter) ≤ 0.02                  ≤0.02    

QB/T　15898-1995
项目Item　　　                                                                分析纯　      化学纯
                                                                                           (AR)               (CP)
含量［Co(NO3)2·6H2O］Assay,%                           ≥99.0            97.0
铁(Fe)Iron,%                                                                    ≤0.0005       0.003
镍(Ni)Nickel,%                                                                ≤0.05            0.5
铜(Cu)Copper,%Manganese,%                                   ≤0.002          0.01
锌(Zn)Zinc,% Manganese,%                     　　            ≤0.05            0.1
硫化铵不沉淀物(以硫酸盐计)Substances not 
precipitated by ammonium sulfide,%                          ≤0.1　   　  0.5
水不溶物Insoluble matter in water,%                          ≤0.005          0.01
氯化物(Cl)Chloride,%                                                  ≤0.005          0.01
硫酸盐(SO4)Sulfate,%                                                 ≤0.005          0.02
铵(NH4)Ammonium,%                                                 ≤0.2                --
锰(Mn)Manganese,%                                                   ≤0.005          0.02 

危险品标志      O,Xn,N 
危险类别码      8-22-40-43-50/53-42/43-36/37/38 
安全说明         17-36/37-60-61-45-36/37/39-26-22 
危险品运输编号  UN 1477 5.1/PG 2 
WGK Germany   2 
RTECS               QU7355500 
HazardClass      5.1 
PackingGroup   III 
海关编码           28342920 

主要在化学工业中用作催化剂原料，氰化物中毒的解毒剂，制造六亚硝酸钴钠及用作分析测定钾的试剂，也用作陶瓷工业着色剂，油漆催干剂的原料等。 用于制造供石油化工直接脱硫用催化剂的原料。用作氰化物中毒的解毒剂。用于制造隐显墨水，制造钴颜料和制造六亚硝酸钴钠的原料。用于陶瓷工业作着色剂。制造维生素B12的添加剂。液体产品主要用于制造油漆干燥剂。用于制造显像管的玻壳。
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