| GB/T651-93
项目ltem优级纯分析纯
(GR)(AR)
含量(KClO3)Assay,%≥99.8%99.8%
pH(50g/L溶液,25℃)pHofwatersolution5.0-7.05.0-7.0
澄清度试验Clarity合格合格
水不溶物lnsolublematterinwater,%≤0.0020.005
干燥失重Dryingloss,%≤0.050.1
氯化物及氯酸盐(以Cl计)Chlorideand
chlotate,%≤0.0050.02
碘化物(I)lodide,%≤0.0010.002
硫酸盐(SO4)Sulfale,%≤0.0030.01
总氮量(N)Totalnitrogen,%≤0.0020.003
钠(Na)Sodium,%≤0.010.02
铁(Fe)Iron,%≤0.00020.0005
重金属(以Pb计)Heavymetals,%≤0.00050.001
GB1258-90
项目ltem基准试剂
(PT)
含量(KlO3)Assay,%≥99.5～100.05
pH(50g/L溶液,25℃)pHofwatersolution5.0～8.0
澄清度试验Clarity合格
干燥失重Dryingloss,% ≤0.1
氯化物及氯酸盐(以Cl计)Chlorideandch-
lotate,%≤0.005
碘化物(I),lodie,%≤0.001
硫酸盐(SO4)Sulfate,%≤0.003
总氮量(N)Totalnitrogen,%≤0.002
铁(Fe)Iron,%≤0.0002
重金属(以Pb计)Heavymetals,%≤0.0005
ACS级
项目名称 ACSGrade
含量Assay99.4-100.4%
25℃时5%溶液的pH值
pHofa5%solutionat25℃5.0-8.0
水不溶物Insolublematter≤0.005%
氯化物及氯酸盐(以Cl计)
Chlorineandbromide≤0.01%
碘化物(I)Iodide≤0.001%
氮化合物(以N计)Nitrogencompounds≤0.005%
硫酸盐(SO4)Sulfate≤0.005%
重金属(以Pb计)Heavymetals≤5ppm
铁(Fe)Iron≤0.001%
钠(Na)Sodium≤0.005% |
