from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun The anionic univalent group MnO4 derived from permanganic acid or a compound containing this group, all of which are strong oxidizing agents.
from The Century Dictionary.
- noun A compound of permanganic acid with a base.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Chem.) A salt of permanganic acid.
- noun (Chem.) See Potassium permanganate, under
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun inorganic chemistry any
saltof permanganic acid, they are purple crystalline solids, mostly soluble in water; they are strong oxidizing agents
- noun inorganic chemistry
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a dark purple salt of permanganic acid; in water solution it is used as a disinfectant and antiseptic
from The American Heritage® Dictionary of the English Language, 4th Edition
from Wiktionary, Creative Commons Attribution/Share-Alike License
The purple looks like potassium permanganate, which is a strong oxidizer.
More accurate results are obtained by using a very dilute solution of potassium permanganate, which is decomposed by amyl alcohol much more rapidly than by ethyl alcohol.
You can use soap or a chemical product such as permanganate of potash or cresol.
There may be added to the boiler, C, certain materials for purifying the acetic acid, such as permanganate of potassa or acetate of soda, so as to obtain an absolutely pure article.
When hydrogen peroxide comes in contact with a catalyst, such as permanganate of potash, it breaks down into oxygen and water.
The standard solution of "permanganate" is then run in, (not too quickly, and with constant shaking) until a permanent pink tinge is produced.
Fifty c.c. of a solution of ferrous chloride, which required on titration 49.8 c.c. of "permanganate," required for re-titration (after subsequent reduction with stannous chloride) 50 c.c. of the permanganate solution.
Another gram dissolved in acid and titrated with "permanganate" required 8.2 c.c. (standard = 0.4951).
In one experiment 50 c.c. of the ferrous sulphate solution were titrated with "permanganate"; 49.3 c.c. of the last-mentioned solution were required.
"permanganate" solution, and again titrate; about 30 c.c. of the "hypo" will be used.
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