天然和人造冰晶石 铝含量的测定 原子吸收法

详细信息   

• 中文主题词：含量测定 ; 原子吸收法 ; 化学分析 ; 化学分析和试验 ; 冰晶石 ; 铝 ; 原子吸收分光光度测定法 ; 光度测量法
• 标准号：ISO 2830-1973
• 发布日期：1973-12-01
• 英文题名：Cryolite, natural and artificial; Determination of aluminium content; Atomic absorption method
• 英文主题词：Aluminium ; Atomic absorption spectrophotometry ; Chemical analysis and testing ; Cryolite ; Determination of content ; Photometry
• 标准状态：现行
• 发布单位：IX-ISO
• 国际标准分类号：73.060.40
• 载体形态：3P.;A4
• 中国标准分类号：D59
• 国别：国际标准化组织

文摘

Applicable to products having a normal composition for which the molar ratio NaF/AlF3 is equal to about 3. Dissolution of a test portion in concentrated suphuric acid and elimination of hydrogen fluoride. Treatment with hydrochloric acid and water. Atomization of the solution into an acetylene measurement of the absorption of the 309.3 nm line emitted by an aluminium hollow cathode lamp. Has also been approved by the IUPAC.