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Manganate
Manganate Man"ga*nate, n. [Cf. F. manganate.] (Chem.)
A salt of manganic acid.
Note: The manganates are usually green, and are wellknown
compounds, though derived from a hypothetical acid.
Potassium permanganatePotassium Po*tas"si*um, n. [NL. See Potassa, Potash.]
(Chem.)
An Alkali element, occurring abundantly but always combined,
as in the chloride, sulphate, carbonate, or silicate, in the
minerals sylvite, kainite, orthoclase, muscovite, etc. Atomic
weight 39.0. Symbol K (Kalium).
Note: It is reduced from the carbonate as a soft white metal,
lighter than water, which oxidizes with the greatest
readiness, and, to be preserved, must be kept under
liquid hydrocarbons, as naphtha or kerosene. Its
compounds are very important, being used in glass
making, soap making, in fertilizers, and in many drugs
and chemicals.
Potassium permanganate, the salt KMnO4, crystallizing in
dark red prisms having a greenish surface color, and
dissolving in water with a beautiful purple red color; --
used as an oxidizer and disinfectant. The name chameleon
mineral is applied to this salt and also to potassium
manganate.
Potassium bitartrate. See Cream of tartar, under Cream. potassium permanganateChameleon Cha*me"le*on (k[.a]*m[=e]"l[-e]*[u^]n), n. [L.
Chamaeleon, Gr. chamaile`wn, lit., ``ground lion;' chamai`
on the ground + le`wn lion. See Humble, and Lion.]
(Zo["o]l.)
A lizardlike reptile of the genus Cham[ae]leo, of several
species, found in Africa, Asia, and Europe. The skin is
covered with fine granulations; the tail is prehensile, and
the body is much compressed laterally, giving it a high back.
Note: Its color changes more or less with the color of the
objects about it, or with its temper when disturbed. In
a cool, dark place it is nearly white, or grayish; on
admitting the light, it changes to brown, bottle-green,
or blood red, of various shades, and more or less
mottled in arrangment. The American chameleons belong
to Anolis and allied genera of the family
Iguanid[ae]. They are more slender in form than the
true chameleons, but have the same power of changing
their colors.
Chameleon mineral (Chem.), the compound called potassium
permanganate, a dark violet, crystalline substance,
KMnO4, which in formation passes through a peculiar
succession of color from green to blue, purple, red, etc.
See Potassium permanganate, under Potassium.
Meaning of Nganate from wikipedia
