与 «METATUNGSTIC»相关的英语书籍
在以下的参考文献中发现
metatungstic的用法。与
metatungstic相关的书籍以及同一来源的简短摘要提供其在 英语文献中的使用情境。
1
A Dictionary of Chemistry
Metatungstic acid (v. 911) is, according to Scheibler {Jahresb. 1860, p. 157), a
more delicate reagent for alkaloids than phosgholybdic acid, all such bases
being precipitated by it in white flocks. To obtain this reaction it is not necessary
to use ...
2
A Dictionary of Chemistry and the Allied Branches of Other ...
Metatungstic Acid. Soluble Modification of lungstic Acid. — -This acid is mostly
produced in the decomposition of tungstates by the stronger acids at ordinary
temperatures ; also by the action of tungstic acid on tungstates. Pure metatungstic
...
3
Revue Roumaine de Chimie
CONTRIBUTION TO THE CHEMISTRY OF THE METATUNGSTIC ACID RALUCA
RIPAN and CLEOPATRA CALU Academy of the Socialist Republic of Romania
Institute of Chemistry, CluJ, str. Donath nr. 59 — 65 Received January 29, 1968 ...
4
Progress in Inorganic Chemistry
The titration curves for freshly prepared metatungstic acid anhydride and WO3-%
H2O are similar to that for the dihydrate, whereas an aged metatungstic acid
anhydride behaves more like WO;;-H20 (38). Potentiometric titration of the ...
5
Proceedings (Sections I-VI) June 25-30, 1973, Moscow, USSR.
The results of these studies lay at the basis of the synthesis of high purity
polytungstic acids obtained in good yields as it is the case with the metatungstic
acid. The ion exchange can be partially or completely performed, using an
excess of ...
International Union of Theoretical and Applied Chemistry, Soviet Union. Gosudarstvennyĭ komitet po nauke i tekhnike,
1973
6
Proceedings of the ... International Conference on ...
-381 — 3Sat 8 CHEMISTRY OF METATUNGSTIC ACID [h2wi204o] H6* 29H2°
Raluca RIPAN and Cleopatra CALU Institute of Chemistry, Academy of R.S.
Rumania Cluj , Rumania The metatungstic acid was obtained from the barium
salt by ...
M. E. Vol'pin. q -> I fN O\ II 04 " « o o ~ 2 II I N £ I E 00 q H VO II o ^ •* o ^ •c n ? N
Cu — Q VO o o r j £. (*, ac 5 f. \ a "o •? oo S = o ray structural data for tungstoboric
and metatungstic acids (or, for. 123.
8
Handbook of Inorganic Electrochromic Materials
Spraying of aqueous solutions of metatungstic acid (H6W12O39) was reported
by Hurditch (1583) and by Zeller and Beyeler (3791). Films with good
electrochromism were obtained for 150 < ts < 200°C, whereas no
electrochromism was ...
9
Metal-Oxygen Clusters: The Surface and Catalytic Properties ...
The low-temperature endotherm is attributed to the removal of water whereas the
high-temperature exotherm signals the decomposition of the anion. The authors
note that metatungstic acid H8[W12O40]ÁxH2O decomposes at 50 ...
10
Polyoxometalates: From Platonic Solids to Anti-Retroviral ...
This molecule and its antithesis, the metatungstic acid molecule, are notable for
their incorporation of two nonlabile hydrogen atoms somewhere in the interior.
Allmann (1971), who determined three ammonium paratungstate structures, gave
...
Michael Pope, Achim M]ller,
1994