THE USE OF COPRECIPITATION FOR OBTAINING ANALYTICAL CONCENTRATES OF CD, PD, BI,AND ZN IN ANALYZING ALLOYS
Abstract
IN ANALYZING HEAT-RESISTANT ALLOYS OF Ni with Mo or W it is necessary to determine the impurities in the form of low-melting metals that are present in quantities of 0.001 to 0.0001%. For this purpose it is first necessary to obtain analytical concentrates of the elements to be determined. Studies were made of the conditions under which micro-impurities most completely precipitate with one of the components of the alloy or with a collector, while the basic components of the alloy remain in solution. In order to monitor the completeness of the separation of Zn and Cd impurities, radioactive isotopes Zn-65 and Cd-115, were used and spectral analysis was conducted for Pb and Bi. The precipitates obtained were converted to oxides for the purpose of spectral determination. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 04, 1960
- Accession Number
- AD0256114
Entities
People
- A.k. Babko
- P.v. Marchenko
Organizations
- National Air and Space Intelligence Center