質(zhì)量標(biāo)準(zhǔn): HG/T2629-94
項(xiàng)目ltem 分析純 化學(xué)純
(AR) (CP)
含量[Ba(OH)2?8H2O],% ≥98.0 97.0
碳酸鋇(BaCO3)Barium carbonate,% ≤1.0 2.0
澄清度試驗(yàn)Clarity 合格 合格
鹽酸不溶物lnsoluble in hydrochl-oric acid,% ≤0.005 0.05
氯化物(CI)Chloride,% ≤0.003 0.02
硫化物(S)Sulfile,% ≤0.0002 0.001
鈣(Ca)Calcium,% ≤0.02 0.05
鐵(Fe)Iron,% ≤0.001 0.005
鍶(Sr)Strontiun,% ≤0.08 0.15
鉛(Pb)Lead,% ≤0.001 0.002
硫酸不沉淀物Substances not prici-
pitatd by sulfuric acid,% ≤0.02 0.05
ACS級(jí)
項(xiàng)目名稱Item ACS Grade
含量Assay ≥98%
碳酸鹽(以BaCO3計(jì))Carbonate ≤2.0%
稀鹽酸不溶物Insoluble in dilute hydrochloric acid ≤0.01%
氯化物(Cl)Chloride(Cl) ≤0.001%
硫化物(以S計(jì))Sulfide(S) Passes test
鈣(Ca)Calcium(Ca) ≤0.05%
鉀(K)Potassium(K) ≤0.01%
鈉(Na)Sodium(Na) ≤0.01%
鍶(Sr)Strontium(Sr) ≤0.8%
重金屬(以Pb計(jì))Heavy metals(as Pb) ≤5ppm
鐵(Fe)Iron(Fe) ≤0.001%