CSA Group Aluminium oxide primarily used for the production of aluminium - Determination of fluorine content - Alizarin complexone and lanthanum chloride spectrophotometric method ISO 2828:1973

Description
Applicable to products having F contents of more than 0.003 % (m/m). Dissolution of a test portion by attack by sulphuric acid under pressure. Separation of the fluorine by distillation at a temperature of (150 1) °C by sulphuric acid. The distillation is carried out by the method described in ISO 1693. Formation of a blue coloured complex between fluorine and alizarin complexone/lanthanum chloride reagent at a pH between 4.5 and 4.6. Addition of acetone to increase the stability and sensitivity of the fluorine complex. Spectrophotometric measurement of the complex at a wavelength of about 620 nm. Has also been approved by the IUPAC.
  • Aluminium oxide primarily used for the production of aluminium - Determination of fluorine content - Alizarin complexone and lanthanum chloride spectrophotometric method - ISO 2828:1973 - CSA Group
    CSA Group
Description
Applicable to products having F contents of more than 0.003 % (m/m). Dissolution of a test portion by attack by sulphuric acid under pressure. Separation of the fluorine by distillation at a temperature of (150 1) °C by sulphuric acid. The distillation is carried out by the method described in ISO 1693. Formation of a blue coloured complex between fluorine and alizarin complexone/lanthanum chloride reagent at a pH between 4.5 and 4.6. Addition of acetone to increase the stability and sensitivity of the fluorine complex. Spectrophotometric measurement of the complex at a wavelength of about 620 nm. Has also been approved by the IUPAC.

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Aluminium oxide primarily used for the production of aluminium - Determination of fluorine content - Alizarin complexone and lanthanum chloride spectrophotometric method - ISO 2828:1973 - CSA Group
CSA Group
Toronto, Ontario, Canada
Aluminium oxide primarily used for the production of aluminium - Determination of fluorine content - Alizarin complexone and lanthanum chloride spectrophotometric method
ISO 2828:1973
Aluminium oxide primarily used for the production of aluminium - Determination of fluorine content - Alizarin complexone and lanthanum chloride spectrophotometric method ISO 2828:1973
Applicable to products having F contents of more than 0.003 % (m/m). Dissolution of a test portion by attack by sulphuric acid under pressure. Separation of the fluorine by distillation at a temperature of (150 1) °C by sulphuric acid. The distillation is carried out by the method described in ISO 1693. Formation of a blue coloured complex between fluorine and alizarin complexone/lanthanum chloride reagent at a pH between 4.5 and 4.6. Addition of acetone to increase the stability and sensitivity of the fluorine complex. Spectrophotometric measurement of the complex at a wavelength of about 620 nm. Has also been approved by the IUPAC.

Applicable to products having F contents of more than 0.003 % (m/m). Dissolution of a test portion by attack by sulphuric acid under pressure. Separation of the fluorine by distillation at a temperature of (150 1) °C by sulphuric acid. The distillation is carried out by the method described in ISO 1693. Formation of a blue coloured complex between fluorine and alizarin complexone/lanthanum chloride reagent at a pH between 4.5 and 4.6. Addition of acetone to increase the stability and sensitivity of the fluorine complex. Spectrophotometric measurement of the complex at a wavelength of about 620 nm. Has also been approved by the IUPAC.

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Technical Specifications

  CSA Group
Product Category Standards and Technical Documents
Product Number ISO 2828:1973
Product Name Aluminium oxide primarily used for the production of aluminium - Determination of fluorine content - Alizarin complexone and lanthanum chloride spectrophotometric method
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