Author: Kalpana Rani Dey
IS-800 CHEMICAL ANALYSIS OF ALKALI METAL TUNGSTEN BRONZES: Bruce
Alan Raby and Charles Banks ABSTRACT A method has been developed for the
chemical analysis of the three major constituents in alkali metal tungsten ...
Author: Bruce Alan Raby
Category: Tungsten bronze
Aluminum is the best metal found thus far for capsules . A description is given of
an automatic activation - analysis system . ( N.W.R. ) 15952 ( IS - 800 )
CHEMICAL ANALYSIS OF ALKALI METAL TUNGSTEN BRONZES . Bruce Alan
Raby and ...
Category: Nuclear energy
Aluminum is the best metal found thus far for capsules. A description is given of
an automatic activation-analysis system. (N.W.R.) 15952 (IS-800) CHEMICAL
ANALYSIS OF ALKALI METAL TUNGSTEN BRONZES. Bruce Alan Baby and ...
Category: Nuclear energy
It had been found that only the alkali metals and the Cu subgroup metals can be
Introduced in the tungsten bron zes . The preparation of other metals than the
alkali and cu subgroup metal tungsten bronzes were extraordinary difficult and ...
Category: Electric conductivity
I. INTRODUCTION A. Introduction to this Study The object of this research was to
gain further understanding of the nature of the metal - nonmetal properties of the
alkali tungsten bronzes . Other investigations of metalnonmetal transitions have ...
Author: Paul Alden Lightsey
Category: Alkali tungsten bronzes
Later Magnéli and Blombergo reported the presence of such solid solutions in
other alkali metal tungsten bronzes and also prepared the corresponding cesium
compound . Over the past few years sodium and lithium tungsten bronzes have ...
A series of crystalline solid solutions of lead in tungsten trioxide has been
prepared and characterized . It is proposed that such solid solutions are lead
analogs of the alkali metal tungsten bronzes . Three different methods of
Author: American Chemical Society. Meeting
Further examples were discovered during studies of alkali metal tungsten
bronzes by Hussain & Kihlborg ( 1976 ) and Hussain ( 1977 ) . Since then related
phases have been found in the systems Pb - W - O ( Ekström & Tilley 1978 ) , Ba -
Author: Royal Society (Great Britain)
Category: Electronic journals
Heating in Vacuum With the metal hydrides , to determine the proportion of
hydrogen , usually all that is necessary is to heat the hydride under ... Since
hydrogen tungsten bronzes resemble very closely the alkali metal tungsten
Author: David Robinson Wanlass
Category: Rubidium tungsten bronze
Preparation and Characterization of a Hexagonal Ammonium Tungsten Bronze
Phase ( NH4 ) , WO3 By P. G. ... The alkali - metal tungsten bronzes are inert ,
intensely coloured , lustrous compounds with characteristic electronic properties .
Author: Faraday Society
Rubidium and caesium have only been found to form the dark blue hexagonal
tungsten bronze ( Fig . 153 ) , in which the alkali metal sites are found between
rings formed from six WOg octahedra , in contrast to five ( and four ) of the
Author: David L. Kepert
Category: Transition metals
Journal of Alloys and Compounds 246 ( 1997 ) 51-61 Crystal growth of alkali
metal tungsten bronzes M WO3 ( M = K , Rb , Cs ) , and their optical properties A.
Hussain , R. Gruehn , C.H. Rüscher ' Department of Chemistry , University of
Category: High temperature superconductivity
The dissolution chronopotentiograms of these three metals were examined , and
a method for determining the cathodic transition time from the potential - time ...
CHEMICAL ANALYSIS OF ALKALI METAL TUNGSTEN BRONZES ( Order No .
Category: Dissertations, Academic
1-4 Standard methods include the reduction of alkali tungstate melts
electrolytically or with H , or strong metallic and nonmetallic reducing agents .
The most common route uses the appropriate metal . For example , tungsten
bronzes may be ...
In conclusion it must be noted that molybdenum and tungsten polyions are
unstable ions : in aqueous solution they ... At higher ratios the face - centred
cubic and hexagonal structures of the heavy alkali - metal tungsten bronzes
Category: Chemistry, Inorganic
( 174a ) Turbidimetric and flame - photometric methods for determining
potassium in tungsten and molybdenum have been described by Hegedüs and
Fukker . ( 63 ) The analysis of alkali metal - tungsten bronzes has been reported
by Raby ...
Author: William Thomas Elwell