与 «METASILICIC»相关的英语书籍
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metasilicic的用法。与
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1
A Text Book of Inorganic Chemistry
There are two silicic acids: Orthosilicic acid, H4SiO4 or Si(OH)4 Metasilicic acid,
H2SiO3 or SiO(OH)2 Orthosilicic acid is obtained as a gelatinous precipitate by.
leading silicon tetrafluoride into water. The precipitate is washed with water, then
...
2
An Elementary Study of Chemistry
acid (H 4 SiO 4 ) and metasilicic acid (H 2 SiO 3 ). Orthosilicic acid is formedasa
jellylike masswhen orthosilicates aretreated withstrong acids suchas hydrochloric
. On attemptingtodry this acid itloses water, passing into metasilicicorcommon ...
3
Modern Inorganic Chemistry
Metasilicic acid is obtained as a gelatinous ppt. by adding HCl to a concentrated
solution of an alkali silicate like Na2SiO3. Na2SiO3 + 2HCl 2NaCl + H2SiO3
Gelatinous ppt. The gelationous ppt. of H2SiO3 so formed is filtered, dehydrated
...
R.D.Madan & Satya Prakash, R. D. Madan, 1987
4
Unit Processes in Drinking Water Treatment
Metasilicic acid is a weak divalent acid of which the acidity constants are the
following: [H2Si03] tH*l[SiO32- [HSiCV] c: = 10 Any acid stronger than metasilicic
acid can displace the latter compound from the metasilicate and induce meta- or
...
5
Abstracts of Japanese Medicine
Cortisone, hydrocortisone, DOCA or water melon feeding markedly increased
metasilicic acid excretion. In the Yokohama area, where the metasilicic acid
content of drinking water is 30.23 mg./l., the incidence of hypertension was 19.34
%, ...
If two molecules of metasilicic acid dimerize, as shown in Figure 5.2A, there is a
substantially smaller kinetic barrier for this process. Because H2SiO3 is
electroneutral (the isoelectric point of bulk silica ranges from 2 to 4) compared to
...
Michel Andre Aegerter, Nicholas Leventis, Matthias M. Koebel, 2011
7
Elements of the P Block
-OH OH + 3H,O OH OH Figure 10.24 Formation of a metasilicic acid by splitting
off water from orthosilicic acid. Blue dashed lines indicate the repeat unit. * The
structures and applications of zeolites are described in a Case Study in Chemical
...
Charlie Harding, Rob Janes, D. A. Johnson, 2002
OH 0 = Si 0 = Si-0-H \)H A x o 0 = s'i- O HO O Si^ NA10H + 2H20-> \i ' \j-OH V H</
V OH OH / 0 = Si V Montmorillonitic acid Halloysitic acid and metasilicic acid • In
hornblende, augite, and many similar minerals, the ferrous iron is present as a ...
9
A Study of the Fauna of the Hamilton Formation of the Cayuga ...
From this, ))y successively eliminating two molecules of water, two anhydrides
may be derived, thus: Orthosilicic acid _-Si(OH)4 First anhydride, metasilicic acid
0=Si — (0H)2 Second anhydride, silicon dioxide _ . - . .0=Si=0 These acids, ...
Herdman Fitzgerald Cleland, 1903
10
The constitution of the silicates
In the first place, metasilicic acid itself is defectively known, and no ether of the
form R2Si03 has yet been certainly obtained. Troost and Hautfeuille's ether (
C2H5)8Si4012 suggests the possibility that metasilicic acid, like metapbosphoric
acid, ...
Frank Wigglesworth Clarke, 1896
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Hyotan Onsen – Japan's only hot spring with three Michelin stars
Taken directly from the spring, the water contains an extremely high content of metasilicic acid, which despite its somewhat frightening name is ... «ROCKETNEWS24, 六月 14»
9 ultra-luxe spa getaways
Located largely in Okayama, Japan's centuries-old bijin-no-yu, or "hot springs of beauties," bubble with minerals containing metasilicic acid, ... «CNN International, 二月 11»
San Diego Thinks They're So Hot They Need A Water Boutique
For example, "No. 76 is a billed as drinkable spring water with metasilicic acid that is supposed to promote healthy skin while No. 51 is billed as ... «Jaunted, 八月 09»
