ISO 2072:1981

$12.35

Aluminium oxide primarily used for the production of aluminium — Determination of zinc content — PAN photometric method

Published By	Publication Date	Number of Pages
ISO	1981-08	7

Guaranteed Safe Checkout

Categories: 71.100.10 - Materials for aluminium production, ISO

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

Description

The 1-(2-pyridilazo)-2-naphthol method is applicable to products having zinc contents in the range between 0,002 % (m/m) and 0,12 % (m/m). Alkaline fusion of a test portion, and dissolution of the fused mass in nitric acid. Separation of the zinc in the form of its thiocyanate by extraction with 4-methylpentan-2-one. Re-extraction of the zinc with an aqueous hydrochloric acid solution. Formation of the PAN-zinc complex, at pH 7,5, in the presence of tartaric acid, sodium thiosulphate and 1-nitrose-2-naphthol-3,6-du

Additional information

Published Code	ISO
Published By	International Organization for Standardization
Publication Date	1981-08
Pages Count	7
Language	English
Edition	1
File Size	399.4 KB
ICS Codes	71.100.10 - Materials for aluminium production

Preview PDF


PDF Format	Searchable	Printable	Preview Now

ISO 2072:1981

Related products