Definition of Potas. Meaning of Potas. Synonyms of Potas
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Definition of Potas
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acid potassium tartrate Cream Cream (kr[=e]m), n. [F. cr[^e]me, perh. fr. LL. crema
cream of milk; cf. L. cremor thick juice or broth, perh. akin
to cremare to burn.]
1. The rich, oily, and yellowish part of milk, which, when
the milk stands unagitated, rises, and collects on the
surface. It is the part of milk from which butter is
obtained.
2. The part of any liquor that rises, and collects on the
surface. [R.]
3. A delicacy of several kinds prepared for the table from
cream, etc., or so as to resemble cream.
4. A cosmetic; a creamlike medicinal preparation.
In vain she tries her paste and creams, To smooth
her skin or hide its seams. --Goldsmith.
5. The best or choicest part of a thing; the quintessence;
as, the cream of a jest or story; the cream of a
collection of books or pictures.
Welcome, O flower and cream of knights errant.
--Shelton.
Bavarian cream, a preparation of gelatin, cream, sugar, and
eggs, whipped; -- to be eaten cold.
Cold cream, an ointment made of white wax, almond oil, rose
water, and borax, and used as a salve for the hands and
lips.
Cream cheese, a kind of cheese made from curd from which
the cream has not been taken off, or to which cream has
been added.
Cream gauge, an instrument to test milk, being usually a
graduated glass tube in which the milk is placed for the
cream to rise.
Cream nut, the Brazil nut.
Cream of lime.
(a) A scum of calcium carbonate which forms on a solution
of milk of lime from the carbon dioxide of the air.
(b) A thick creamy emulsion of lime in water.
Cream of tartar (Chem.), purified tartar or argol; so
called because of the crust of crystals which forms on the
surface of the liquor in the process of purification by
recrystallization. It is a white crystalline substance,
with a gritty acid taste, and is used very largely as an
ingredient of baking powders; -- called also potassium
bitartrate, acid potassium tartrate, etc.
caustic potash Potash Pot"ash`, n. [Pot + ash.] (Chem.)
(a) The hydroxide of potassium hydrate, a hard white brittle
substance, KOH, having strong caustic and alkaline
properties; -- hence called also caustic potash.
(b) The impure potassium carbonate obtained by leaching wood
ashes, either as a strong solution (lye), or as a white
crystalline (pearlash).
caustic potash Potassa Po*tas"sa, n. [NL., fr. E. potash.] (Chem.)
(a) Potassium oxide. [Obs.]
(b) Potassium hydroxide, commonly called caustic potash.
Caustic potash Caustic Caus"tic, Caustical Caus"tic*al, a. [L. caustucs,
Ge. ?, fr. ? to burn. Cf. Calm, Ink.]
1. Capable of destroying the texture of anything or eating
away its substance by chemical action; burning; corrosive;
searing.
2. Severe; satirical; sharp; as, a caustic remark.
Caustic curve (Optics), a curve to which the ray of light,
reflected or refracted by another curve, are tangents, the
reflecting or refracting curve and the luminous point
being in one plane.
Caustic lime. See under Lime.
Caustic potash, Caustic soda (Chem.), the solid
hydroxides potash, KOH, and soda, NaOH, or solutions
of the same.
Caustic silver, nitrate of silver, lunar caustic.
Caustic surface (Optics), a surface to which rays reflected
or refracted by another surface are tangents. Caustic
curves and surfaces are called catacaustic when formed by
reflection, and diacaustic when formed by refraction.
Syn: Stinging; cutting; pungent; searching.
Potash Potash Pot"ash`, n. [Pot + ash.] (Chem.)
(a) The hydroxide of potassium hydrate, a hard white brittle
substance, KOH, having strong caustic and alkaline
properties; -- hence called also caustic potash.
(b) The impure potassium carbonate obtained by leaching wood
ashes, either as a strong solution (lye), or as a white
crystalline (pearlash).
Potash soap Soap Soap, n. [OE. sope, AS. s[=a]pe; akin to D. zeep, G.
seife, OHG. seifa, Icel. s[=a]pa, Sw. s?pa, Dan. s?be, and
perhaps to AS. s[=i]pan to drip, MHG. s[=i]fen, and L. sebum
tallow. Cf. Saponaceous.]
A substance which dissolves in water, thus forming a lather,
and is used as a cleansing agent. Soap is produced by
combining fats or oils with alkalies or alkaline earths,
usually by boiling, and consists of salts of sodium,
potassium, etc., with the fatty acids (oleic, stearic,
palmitic, etc.). See the Note below, and cf.
Saponification. By extension, any compound of similar
composition or properties, whether used as a cleaning agent
or not.
Note: In general, soaps are of two classes, hard and soft.
Calcium, magnesium, lead, etc., form soaps, but they
are insoluble and useless.
The purifying action of soap depends upon the
fact that it is decomposed by a large quantity of
water into free alkali and an insoluble acid
salt. The first of these takes away the fatty
dirt on washing, and the latter forms the soap
lather which envelops the greasy matter and thus
tends to remove it. --Roscoe &
Schorlemmer.
Castile soap, a fine-grained hard soap, white or mottled,
made of olive oil and soda; -- called also Marseilles, or
Venetian, soap.
Hard soap, any one of a great variety of soaps, of
different ingredients and color, which are hard and
compact. All solid soaps are of this class.
Lead soap, an insoluble, white, pliable soap made by
saponifying an oil (olive oil) with lead oxide; -- used
externally in medicine. Called also lead plaster,
diachylon, etc.
Marine soap. See under Marine.
Pills of soap (Med.), pills containing soap and opium.
Potash soap, any soap made with potash, esp. the soft
soaps, and a hard soap made from potash and castor oil.
Pumice soap, any hard soap charged with a gritty powder, as
silica, alumina, powdered pumice, etc., which assists
mechanically in the removal of dirt.
Resin soap, a yellow soap containing resin, -- used in
bleaching.
Silicated soap, a cheap soap containing water glass (sodium
silicate).
Soap bark. (Bot.) See Quillaia bark.
Soap bubble, a hollow iridescent globe, formed by blowing a
film of soap suds from a pipe; figuratively, something
attractive, but extremely unsubstantial.
This soap bubble of the metaphysicians. --J. C.
Shairp.
Soap cerate, a cerate formed of soap, olive oil, white wax,
and the subacetate of lead, sometimes used as an
application to allay inflammation.
Soap fat, the refuse fat of kitchens, slaughter houses,
etc., used in making soap.
Soap liniment (Med.), a liniment containing soap, camphor,
and alcohol.
Soap nut, the hard kernel or seed of the fruit of the
soapberry tree, -- used for making beads, buttons, etc.
Soap plant (Bot.), one of several plants used in the place
of soap, as the Chlorogalum pomeridianum, a California
plant, the bulb of which, when stripped of its husk and
rubbed on wet clothes, makes a thick lather, and smells
not unlike new brown soap. It is called also soap apple,
soap bulb, and soap weed.
Soap tree. (Bot.) Same as Soapberry tree.
Soda soap, a soap containing a sodium salt. The soda soaps
are all hard soaps.
Soft soap, a soap of a gray or brownish yellow color, and
of a slimy, jellylike consistence, made from potash or the
lye from wood ashes. It is strongly alkaline and often
contains glycerin, and is used in scouring wood, in
cleansing linen, in dyehouses, etc. Figuratively,
flattery; wheedling; blarney. [Colloq.]
Toilet soap, hard soap for the toilet, usually colored and
perfumed.
Potashes Potashes Pot"ash`es, n. pl. (Chem.)
Potash. [Obs.]
Potassa Potassa Po*tas"sa, n. [NL., fr. E. potash.] (Chem.)
(a) Potassium oxide. [Obs.]
(b) Potassium hydroxide, commonly called caustic potash.
Potassamide Potassamide Pot`ass*am"ide, n. [Potassium + amide.] (Chem.)
A yellowish brown substance obtained by heating potassium in
ammonia.
Potassium Potassium 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 bitartrate Potassium 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 bitartrate Cream Cream (kr[=e]m), n. [F. cr[^e]me, perh. fr. LL. crema
cream of milk; cf. L. cremor thick juice or broth, perh. akin
to cremare to burn.]
1. The rich, oily, and yellowish part of milk, which, when
the milk stands unagitated, rises, and collects on the
surface. It is the part of milk from which butter is
obtained.
2. The part of any liquor that rises, and collects on the
surface. [R.]
3. A delicacy of several kinds prepared for the table from
cream, etc., or so as to resemble cream.
4. A cosmetic; a creamlike medicinal preparation.
In vain she tries her paste and creams, To smooth
her skin or hide its seams. --Goldsmith.
5. The best or choicest part of a thing; the quintessence;
as, the cream of a jest or story; the cream of a
collection of books or pictures.
Welcome, O flower and cream of knights errant.
--Shelton.
Bavarian cream, a preparation of gelatin, cream, sugar, and
eggs, whipped; -- to be eaten cold.
Cold cream, an ointment made of white wax, almond oil, rose
water, and borax, and used as a salve for the hands and
lips.
Cream cheese, a kind of cheese made from curd from which
the cream has not been taken off, or to which cream has
been added.
Cream gauge, an instrument to test milk, being usually a
graduated glass tube in which the milk is placed for the
cream to rise.
Cream nut, the Brazil nut.
Cream of lime.
(a) A scum of calcium carbonate which forms on a solution
of milk of lime from the carbon dioxide of the air.
(b) A thick creamy emulsion of lime in water.
Cream of tartar (Chem.), purified tartar or argol; so
called because of the crust of crystals which forms on the
surface of the liquor in the process of purification by
recrystallization. It is a white crystalline substance,
with a gritty acid taste, and is used very largely as an
ingredient of baking powders; -- called also potassium
bitartrate, acid potassium tartrate, etc.
Potassium carboxide Carboxide Car*box"ide, n. [Carbon + oxide.] (Chem.)
A compound of carbon and oxygen, as carbonyl, with some
element or radical; as, potassium carboxide.
Potassium carboxide, a grayish explosive crystalline
compound, C6O6K, obtained by passing carbon monoxide
over heated potassium.
Potassium ferrocyanide Ferrocyanide Fer`ro*cy"a*nide (? or ?; 104), n. [Ferro- +
cyanide.] (Chem.)
One of a series of complex double cyanides of ferrous iron
and some other base.
Potassium ferrocyanide (Chem.), yellow prussiate of potash;
a tough, yellow, crystalline salt, K4(CN)6Fe, the
starting point in the manufacture of almost all cyanogen
compounds, and the basis of the ferric ferrocyanate,
prussian blue. It is obtained by strongly heating together
potash, scrap iron, and animal matter containing nitrogen,
as horn, leather, blood, etc., in iron pots.
Potassium permanganate Potassium 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 permanganate Chameleon 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.
Potassoxyl Potassoxyl Pot`ass*ox"yl, n. [Potassium + oxygen + -yl.]
(Chem.)
The radical KO, derived from, and supposed to exist in,
potassium hydroxide and other compounds.
