ISO 2829:1973

$13.00

Aluminium oxide primarily used for the production of aluminium — Determination of phosphorus content — Reduced phosphomolybdate spectrophotometric method

Published By	Publication Date	Number of Pages
ISO	1973-12	5

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Categories: 71.100.10 - Materials for aluminium production, ISO

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Description

Applicable to products having phosphorus contents of more than 0.0005 % (m/m). Preparation of a solution from a test portion by alkaline fusion either with a mixture of sodium carbonate and borid or of sodium carbonate and sodium tetraborate. Dissolution of the cooled molten mass in nitric acid and adjustment of an appropriate aliquot portion to pH 2. Formation of a phosphomolybdic complex and extraction by 2-methylpropan-1-ol in a sulphuric acid medium. Reduction of the complex by thin(II) chloride in the organic phase and spectrophotometric measurement of the reduced complex at a wavelength of about 730 nm. Has also been approved by the IUPAC.

Additional information

Published Code	ISO
Published By	International Organization for Standardization
Publication Date	1973-12
Pages Count	5
Language	France
Edition	1
File Size	317.4 KB
ICS Codes	71.100.10 - Materials for aluminium production

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ISO 2829:1973

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