from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Of, relating to, or containing tin, especially with valence 4.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Containing tetravalent tin.
from the GNU version of the Collaborative International Dictionary of English
- adj. Of or pertaining to tin; derived from or containing tin; specifically, designating those compounds in which the element has a higher valence as contrasted with
from The Century Dictionary and Cyclopedia
- Of or pertaining to tin; procured from tin: specifically applied to those compounds in which tin appears as a quadrivalent atom: as, stannic acid, SnO(OH)2, a hydrate obtained from stannous oxid, which unites with bases to form salts called stannates.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. of or relating to or containing tin
There is also an acid, H_ SnO_ , called stannic acid, which forms a series of salts called stannates.
I may also, in the last instance, mention that I have found the above methods of electro-dissolution peculiarly adapted for the preparation of unstable compounds such as stannic nitrate, potassic ferrate, ferric acetate, which are decomposed on the application of heat, and in some instances have succeeded by the following means of crystallizing the resulting compound obtained.
By igniting strongly for some hours a mixture of stannic oxide, chalk, chromate of potash, and a little silica and alumina, a dingy red mass is obtained, which acquires a beautiful rose-red colour on being washed with water containing hydrochloric acid.
By heating chromate of stannic oxide to bright redness, a dark violet mass is obtained, which is better adapted to enamel painting than to the palette.
They are divisible into three classes -- the stannic cerulian blue, the aluminous cobalt blues, and the siliceous smalts.
Although not to be ranked with ultramarine, the stannic and aluminous blues may be described as durable, or at least as durable rather than semi-stable.
SnCl_ ; the stannic, in which it is tetravalent as shown in the compounds SnO_ , SnS_ .
~ In nearly all its compounds lead has a valence of 2, but a few corresponding to stannic compounds have a valence of 4.
The ease with which stannous chloride takes up chlorine to form stannic chloride makes it a good reducing agent in many reactions, changing the higher chlorides of metals to lower ones.
The hydroxides of tin and free stannic acid, which are easily liberated from these compounds, possess in very marked degree the power of fixing dyes upon fibers, as explained under aluminium.
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