Accession Number:

AD0743519

Title:

Inadmissibility of the 'AnalaR' Method for the Determinination of Metallic Zinc in Zinc Oxide,

Descriptive Note:

Corporate Author:

DEFENCE STANDARDS LABS ADELAIDE (AUSTRALIA)

Personal Author(s):

• Norman,V. J.

Report Date:

1971-09-28

Pagination or Media Count:

2.0

Abstract:

A chemical method for the quantitative determination of non-stoicheiometric zinc in zinc oxide, previously published by the author, had been incorrectly applied to the determination of free metallic zinc in zinc oxide. It is shown that, unless the free metal is extremely finely divided, large amounts can be present in the zinc oxide without being recorded in the analysis. Even with particle diameters as small as 1 micron, only 3 per cent, or less of the metallic zinc is detected by the method. Author

Descriptors:

• (*ZINC COMPOUNDS
• CHEMICAL ANALYSIS)
• OXIDES
• IMPURITIES
• ZINC
• ABSORPTION
• MICROANALYSIS
• AUSTRALIA

Subject Categories:

• Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE