Codes & Standards - Purchase
ISO 2865:1973
Aluminium oxide primarily used for the production of aluminium -- Determination of boron content -- Curcumin spectrophotometric method
SKU: iso_007876_102509
Published by ISO
Publication Year 1973
1 Edition
5 pages
Product 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.
