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ISO 2865:1973

Aluminium oxide primarily used for the production of aluminium — Determination of boron content — Curcumin spectrophotometric method

Standard Details

Applicable to products having boron oxide contents of more than 0.0006 % (m/m). With sufficiently sensitive apparatus, the lower limit of application may be extended to 0.00008 % (m/m). The test portion is dissolved in phosphoric acid. Separation of the boron by distillation as methyl borate. Formation of a red coloured complex between the boron and the curcumin reagent at pH 7. Spectrophotometric measurement of the complex at a wavelength of about 550 nm.

General Information

Status : Published
Standard Type: Main
Document No: ISO 2865:1973
Document Year: 1973
Pages: 5
Edition: 1
  • Section Volume:
  • ISO/TC 226. Materials for the production of primary aluminium
  • ICS:
  • 71.100.10 Materials for aluminium production

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ISO 2865:1973
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