商品名：碳酸钡

别 名：碳酸钡

英文名：Barium carbonate

产 地：湖南

Cas号：513-77-9

MDL：MFCD00003448

Beilstein：7045119

EINECS：208-167-3

分子结构：

分子式：BaCO3

分子量：197.3400

备注：

性状：白色粉末。有毒。能溶于稀盐酸、稀硝酸、乙酸、氯化铵溶液和硫酸铵溶液，微溶于含有二氧化碳的水，不溶于水。约1300℃时分解为氧化钡和二氧化碳。相对密度4.43。低毒，半数致死量(大鼠，经口)800mg/kg。

质量标准：ARGB/T654-77
项目Item                                    分析纯          化学纯
                                            (AR)            (CP)
含量(BaCO3),%                               ≥99.0           99.0
澄清度试验Clarity                            合格           合格
盐酸不溶物lnsoluble in hydroc-hloric acid   ≤0.01           0.05
游离碱(以OH计)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
钙及锶(以硫酸盐计)Calcium and strontium,%   ≤0.15           0.5
铁(Fe)Iron,%                                ≤0.0005         0.0015
重金属(以Pb计)Heavy metals,%                ≤0.0005         0.001
硫酸不沉淀物Substances not prec-
ipitated by sulfuric acid,%                 ≤0.05           0.2

ACS级
项目名称Item                                                ACS Grade
含量Assay                                                    ≥99.0-101.0%
稀盐酸不溶物Insoluble in dilute hydrochloric acid            ≤0.015%
氯化物(Cl)Chloride(Cl)                                       ≤0.002%
游离碱Water-soluble titrable base                            0.002meq/g
氧化物(以NO₃计)Oxidizing substances                          ≤0.005%
硫化物(以S计)Sulfide(S)                                      0.001%
钙(Ca)Calcium(Ca)                                            ≤0.05%
钾(K)Potassium(K)                                            ≤0.005%
钠(Na)Sodium(Na)                                             ≤0.02%
锶(Sr)Strontium(Sr)                                          ≤0.7%
重金属(以Pb计)Heavy metals(as Pb)                            ≤0.001%
铁(Fe)Iron(Fe)                                               ≤0.002%


项目                                      高纯级
BaCO3(以干基计)%                          ≥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：


外观Appearance                          白色至类白色粉末
纯度Purity                              ≥99.99% Based On Trace Metals Analysis
ICP Assay                               Confirms Barium component
痕量金属分析Trace Metal Analysis        ≤200ppm by ICP Atomic emission

存储：密封保存。

用途：分析钙、镁、锰和锌中的铁。检定和测定有机化合物中的卤素。铝的分离。催化剂。光学玻璃。油脂脱色，化学操作的中和剂。

联合编号：

RISK：

Safety：

Hazard：