產(chǎn)品描述：
白色粉末。 幾乎不溶于水，不溶于酒精，可溶于酸及氯化銨溶液。
質(zhì)量標(biāo)準(zhǔn)
項(xiàng)目Item 分析純 化學(xué)純
(AR) (CP)
含量(BaCO3),% ≥99.0 99.0
澄清度試驗(yàn)Clarity 合格 合格
鹽酸不溶物lnsoluble in hydroc-hloric acid ≤0.01 0.05
游離堿(以O(shè)H計(jì))Free alkali,% ≤0.02 0.05
氯化物(Cl)Chloridea,% ≤0.002 0.01
硫化物(S)Sulfale compounds,% ≤0.0001 0.0005
氮化合物(N)Nitrogen compounds,% ≤0.002 0.005
鈣及鍶(以硫酸鹽計(jì))Calcium and strontium,% ≤0.15 0.5
鐵(Fe)Iron,% ≤0.0005 0.0015
重金屬(以Pb計(jì))Heavy metals,% ≤0.0005 0.001
硫酸不沉淀物Substances not prec-
ipitated by sulfuric acid,% ≤0.05 0.2
ACS級(jí)
項(xiàng)目名稱Item ACS Grade
含量Assay ≥99.0-101.0%
稀鹽酸不溶物Insoluble in dilute hydrochloric acid ≤0.015%
氯化物(Cl)Chloride(Cl) ≤0.002%
游離堿Water-soluble titrable base 0.002meq/g
氧化物(以NO3計(jì))Oxidizing substances ≤0.005%
硫化物(以S計(jì))Sulfide(S) 0.001%
鈣(Ca)Calcium(Ca) ≤0.05%
鉀(K)Potassium(K) ≤0.005%
鈉(Na)Sodium(Na) ≤0.02%
鍶(Sr)Strontium(Sr) ≤0.7%
重金屬(以Pb計(jì))Heavy metals(as Pb) ≤0.001%
鐵(Fe)Iron(Fe) ≤0.002%
項(xiàng)目 高純級(jí)
BaCO3(以干基計(jì))% ≥99.8
K% ≤0.001
Na% ≤0.001
Mg% ≤0.001
Ca% ≤0.005
Sr% ≤0.001
Cl% ≤0.005
Fe% ≤0.001
H2O% ≤0.1
D50 0.5-1.5μm
99.99% metals basis：
外觀Appearance 白色至類白色粉末
純度Purity ≥99.99% Based On Trace Metals Analysis
ICP Assay Confirms Barium component
痕量金屬分析Trace Metal Analysis ≤200ppm by ICP Atomic emission