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AnhydrideAnhydride An*hy"dride, n. [See Anhydrous.] (Chem.)
An oxide of a nonmetallic body or an organic radical, capable
of forming an acid by uniting with the elements of water; --
so called because it may be formed from an acid by the
abstraction of water. AnhydriteAnhydrite An*hy"drite, n. [See Anhydrous.] (Min.)
A mineral of a white or a slightly bluish color, usually
massive. It is anhydrous sulphate of lime, and differs from
gypsum in not containing water (whence the name). Carbohydride
Carbohydride Car`bo*hy"dride, n. [Carbon + hydrogen.] (Chem.)
A hydrocarbon.
ChlorhydricChlorhydric Chlor`hy"dric, a. [Chlorine + hydrogen + -ic.]
(Chem.)
Same as Hydrochloric. Chlorhydrin
Chlorhydrin Chlor`hy"drin, n. (Chem.)
One of a class of compounds formed from certain polybasic
alcohols (and especially glycerin) by the substitution of
chlorine for one or more hydroxyl groups.
Chromic anhydrideChromic Chro"mic, a. (Chem.)
Pertaining to, or obtained from, chromium; -- said of the
compounds of chromium in which it has its higher valence.
Chromic acid, an acid, H2CrO4, analogous to sulphuric
acid, not readily obtained in the free state, but forming
well known salts, many of which are colored pigments, as
chrome yellow, chrome red, etc.
Chromic anhydride, a brilliant red crystalline substance,
CrO3, regarded as the anhydride of chromic acid. It is
one of the most powerful oxidizers known. ConhydrineConhydrine Con*hy"drine (? or ?), n. [Conium + hydrate.]
(Chem.)
A vegetable alkaloid found with conine in the poison hemlock
(Conium maculatum). It is a white crystalline substance,
C8H17NO, easily convertible into conine. FluohydricFluohydric Flu`o*hy"dric, a. [Fluo- + hydrogen.] (Chem.)
See Hydrofluoric. Hydria
Hydria Hy"dri*a, n. [L., fr. Gr. ?.] (Gr. Antiq.)
A water jar; esp., one with a large rounded body, a small
neck, and three handles. Some of the most beautiful Greek
vases are of this form.
Hydriad
Hydriad Hy"dri*ad, n. [Gr. ?, ?, of the water, fr. "y`dwr
water.] (Myth.)
A water nymph.
hydric-sodic-ammonic-phosphateMicrocosmic Mi`cro*cos"mic, Microcosmical Mi`cro*cos"mic*al,
a. [Cf. F. microcosmique.]
Of or pertaining to the microcosm.
Microcosmic salt (Chem.), a white crystalline substance
obtained by mixing solutions of sodium phosphate and
ammonium phosphate, and also called
hydric-sodic-ammonic-phosphate. It is a powerful flux,
and is used as a substitute for borax as a blowpipe
reagent in testing for the metallic oxides. Originally
obtained by the alchemists from human urine, and called
sal microcosmicum. Hydride
Hydride Hy"dride, n. [Hydr- + ide.] (Chem.)
A compound of the binary type, in which hydrogen is united
with some other element.
Hydriform
Hydriform Hy"dri*form, a. [Hydra + -form.] (Zo["o]l.)
Having the form or structure of a hydra.
HydrinaHydrina Hy*dri"na, n. pl. [NL. See Hydra.] (Zo["o]l.)
The group of hydroids to which the fresh-water hydras belong. HydriodateHydriodate Hy*dri"o*date, n. [Cf. F. hydriodate.] (Zo["o]l.)
Same as Hydriodide. HydriodicHydriodic Hy`dri*od"ic, a. [Hydr- + iodic: cf. F.
hydriodique.] (Chem.)
Pertaining to, or derived from, hydrogen and iodine; -- said
of an acid produced by the combination of these elements.
Hydriodic acid (Chem.), a pungent, colorless gas, HI,
usually prepared as a solution in water. It is strong
reducing agent. Called also hydrogen iodide. Hydriodic acidHydriodic Hy`dri*od"ic, a. [Hydr- + iodic: cf. F.
hydriodique.] (Chem.)
Pertaining to, or derived from, hydrogen and iodine; -- said
of an acid produced by the combination of these elements.
Hydriodic acid (Chem.), a pungent, colorless gas, HI,
usually prepared as a solution in water. It is strong
reducing agent. Called also hydrogen iodide. HydriodideHydriodide Hy*dri"o*dide, n. (Chem.)
A compound of hydriodic acid with a base; -- distinguished
from an iodide, in which only the iodine combines with the
base. Iodhydrin
Iodhydrin I`od*hy"drin, n. [Iod- + chlorhydrin.] (Chem.)
One of a series of compounds containing iodine, and analogous
to the chlorhydrins.
muriatic chlorhydric acidHydrochloric Hy`dro*chlo"ric, a. [Hydro-, 2 + chloric: cf. F.
hydrochlorique.] (Chem.)
Pertaining to, or compounded of, chlorine and hydrogen gas;
as, hydrochloric acid; chlorhydric.
Hydrochloric acid (Chem.), hydrogen chloride; a colorless,
corrosive gas, HCl, of pungent, suffocating odor. It is
made in great quantities in the soda process, by the
action of sulphuric acid on common salt. It has a great
affinity for water, and the commercial article is a strong
solution of the gas in water. It is a typical acid, and is
an indispensable agent in commercial and general chemical
work. Called also muriatic, & chlorhydric, acid. Nitric anhydrideNitric Ni"tric, a. [Cf. F. nitrique. See Niter.] (Chem.)
Of, pertaining to, or containing, nitrogen; specifically,
designating any one of those compounds in which, as
contrasted with nitrous compounds, the element has a higher
valence; as, nitric oxide; nitric acid.
Nitric acid, a colorless or yellowish liquid obtained by
distilling a nitrate with sulphuric acid. It is powerfully
corrosive, being a strong acid, and in decomposition a
strong oxidizer.
Nitric anhydride, a white crystalline oxide of nitrogen
(N2O5), called nitric pentoxide, and regarded as the
anhydride of nitric acid.
Nitric oxide, a colorless poisous gas (NO) obtained by
treating nitric acid with copper. On contact with the air
or with oxygen, it becomes reddish brown from the
formation of nitric dioxide or peroxide. propyl hydridePropane Pro"pane, n. [Propyl + methane.] (Chem.)
A heavy gaseous hydrocarbon, C3H8, of the paraffin series,
occurring naturally dissolved in crude petroleum, and also
made artificially; -- called also propyl hydride. SelenhydricSelenhydric Sel`en*hy"dric, a. (Chem.)
Of, pertaining to, or designating, hydrogen selenide, H2Se,
regarded as an acid analogous to sulphydric acid. sulphuric anhydrideSulphur Sul"phur, n. [L., better sulfur: cf. F. soufre.]
1. (Chem.) A nonmetallic element occurring naturally in large
quantities, either combined as in the sulphides (as
pyrites) and sulphates (as gypsum), or native in volcanic
regions, in vast beds mixed with gypsum and various earthy
materials, from which it is melted out. Symbol S. Atomic
weight 32. The specific gravity of ordinary octohedral
sulphur is 2.05; of prismatic sulphur, 1.96.
Note: It is purified by distillation, and is obtained as a
lemon-yellow powder (by sublimation), called flour, or
flowers, of sulphur, or in cast sticks called roll
sulphur, or brimstone. It burns with a blue flame and a
peculiar suffocating odor. It is an ingredient of
gunpowder, is used on friction matches, and in medicine
(as a laxative and insecticide), but its chief use is
in the manufacture of sulphuric acid. Sulphur can be
obtained in two crystalline modifications, in
orthorhombic octahedra, or in monoclinic prisms, the
former of which is the more stable at ordinary
temperatures. Sulphur is the type, in its chemical
relations, of a group of elements, including selenium
and tellurium, called collectively the sulphur group,
or family. In many respects sulphur resembles oxygen.
2. (Zo["o]l.) Any one of numerous species of yellow or orange
butterflies of the subfamily Pierin[ae]; as, the clouded
sulphur (Eurymus, or Colias, philodice), which is the
common yellow butterfly of the Eastern United States.
Amorphous sulphur (Chem.), an elastic variety of sulphur of
a resinous appearance, obtained by pouring melted sulphur
into water. On standing, it passes back into a brittle
crystalline modification.
Liver of sulphur. (Old Chem.) See Hepar.
Sulphur acid. (Chem.) See Sulphacid.
Sulphur alcohol. (Chem.) See Mercaptan.
Sulphur auratum [L.] (Old Chem.), a golden yellow powder,
consisting of antimonic sulphide, Sb2S5, -- formerly a
famous nostrum.
Sulphur base (Chem.), an alkaline sulphide capable of
acting as a base in the formation of sulphur salts
according to the old dual theory of salts. [Archaic]
Sulphur dioxide (Chem.), a colorless gas, SO2, of a
pungent, suffocating odor, produced by the burning of
sulphur. It is employed chiefly in the production of
sulphuric acid, and as a reagent in bleaching; -- called
also sulphurous anhydride, and formerly sulphurous
acid.
Sulphur ether (Chem.), a sulphide of hydrocarbon radicals,
formed like the ordinary ethers, which are oxides, but
with sulphur in the place of oxygen.
Sulphur salt (Chem.), a salt of a sulphacid; a sulphosalt.
Sulphur showers, showers of yellow pollen, resembling
sulphur in appearance, often carried from pine forests by
the wind to a great distance.
Sulphur trioxide (Chem.), a white crystalline solid, SO3,
obtained by oxidation of sulphur dioxide. It dissolves in
water with a hissing noise and the production of heat,
forming sulphuric acid, and is employed as a dehydrating
agent. Called also sulphuric anhydride, and formerly
sulphuric acid.
Sulphur whale. (Zo["o]l.) See Sulphur-bottom.
Vegetable sulphur (Bot.), lycopodium powder. See under
Lycopodium. Sulphuric anhydrideSulphuric Sul*phu"ric, a. [Cf. F. sulfurique.]
1. Of or pertaining to sulphur; as, a sulphuric smell.
2. (Chem.) Derived from, or containing, sulphur;
specifically, designating those compounds in which the
element has a higher valence as contrasted with the
sulphurous compounds; as, sulphuric acid.
Sulphuric acid.
(a) Sulphur trioxide (see under Sulphur); -- formerly so
called on the dualistic theory of salts. [Obs.]
(b) A heavy, corrosive, oily liquid, H2SO4, colorless
when pure, but usually yellowish or brownish, produced
by the combined action of sulphur dioxide, oxygen
(from the air), steam, and nitric fumes. It attacks
and dissolves many metals and other intractable
substances, sets free most acids from their salts, and
is used in the manufacture of hydrochloric and nitric
acids, of soda, of bleaching powders, etc. It is also
powerful dehydrating agent, having a strong affinity
for water, and eating and corroding paper, wood,
clothing, etc. It is thus used in the manufacture of
ether, of imitation parchment, and of nitroglycerin.
It is also used in etching iron, in removing iron
scale from forgings, in petroleum refining, etc., and
in general its manufacture is the most important and
fundamental of all the chemical industries. Formerly
called vitriolic acid, and now popularly vitriol,
and oil of vitriol.
Fuming sulphuric acid, or Nordhausen sulphuric acid. See
Disulphuric acid, under Disulphuric.
Sulphuric anhydride, sulphur trioxide. See under Sulphur.
Sulphuric ether, common an[ae]sthetic ether; -- so called
because made by the catalytic action of sulphuric acid on
alcohol. See Ether, 3
(a) .
Meaning of Hydri from wikipedia
- Beta
Hydri (β Hyi, β
Hydri) is a star in the
southern cir****polar
constellation of Hydrus. (Note that
Hydrus is not the same as Hydra.) With an apparent...
- 8-magnitude Beta
Hydri, also the
closest reasonably bright star to the
south celestial pole.
Pulsating between magnitude 3.26 and 3.33,
Gamma Hydri is a variable...
-
designation Eta
Hydri (η Hyi / η
Hydri) is
shared by two stars, in the
constellation Hydrus: η1
Hydri, also HD 11733, a B-type main-sequence star η2
Hydri, also...
-
Alpha Hydri,
Latinized from α
Hydri, is the
second brightest star in the
southern cir****polar
constellation of Hydrus. It is
readily visible to the naked...
- Eta2
Hydri is a star in the
southern constellation of Hydrus. The name is
Latinized from η2
Hydri and
often catalogued as HD 11977. It is
visible to the...
-
Theta Hydri,
Latinized from θ
Hydri, is a blue-white hued star in the
southern constellation of Hydrus. It is
faintly visible to the
naked eye with an...
- This is the list of
notable stars in the
constellation Hydrus,
sorted by
decreasing brightness. List of
stars by
constellation ESA (1997). "The Hipparcos...
- ν
Hydri,
Latinized as Nu
Hydri, is a
single star in the
southern cir****polar
constellation of Hydrus. It is orange-hued and
faintly visible to the naked...
-
Delta Hydri,
Latinized from δ
Hydri, is a single, white-hued star in the
southern constellation of Hydrus. It is
bright enough to be
faintly visible to...
- VW
Hydri is a
dwarf nova of the SU
Ursae Majoris type in the deep
southern constellation Hydrus; a star
system that
consists of a
white dwarf and another...
