ISO 900:1977

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Aluminium oxide primarily used for the production of aluminium — Determination of titanium content — Diantipyrylmethane photometric method

Published By	Publication Date	Number of Pages
ISO	1977-10	6

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Categories: 71.100.10 - Materials for aluminium production, ISO

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Description

Applicable to all products having a titanium dioxide content of equal to or more than 0.001 % (m/m). Describes the preparation of the diantipyrylmethane solution and the preparation of the titanum standard solution. The procedure of the preparation of a principal solution or the chemical analysis by an alkaline fusion is carried out according to ISO 804 replacing the nitric acid solution by the sulphuric one. After extraction of the fused mass with sulphuric acid solution formation of the titanium-diantipyrylmethane complex (approximately 4.6 N solution). Photometric measurement of the coloured complex at a wavelength of about 420 nm. Has also been approved by the IUPAC. Replaces and cancels ISO Recommendation R 900/1968 of which it constitutes a technical revision.

Additional information

Published Code	ISO
Published By	International Organization for Standardization
Publication Date	1977-10
Pages Count	6
Language	English
Edition	1
File Size	348.2 KB
ICS Codes	71.100.10 - Materials for aluminium production

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ISO 900:1977

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