| slovo | definícia |
NH2
(gcide) | Amido \A*mi"do\, a. [From Amide.] (Chem.)
Containing, or derived from, amidogen.
[1913 Webster]
Amido acid, an acid in which a portion of the nonacid
hydrogen has been replaced by the amido group. The amido
acids are both basic and acid.
Amido group, amidogen, NH2.
[1913 Webster] |
NH2
(gcide) | Amidogen \A*mid"o*gen\, n. [Amide + -gen.] (Chem.)
A compound radical, NH2, not yet obtained in a separate
state, which may be regarded as ammonia from the molecule of
which one of its hydrogen atoms has been removed; -- called
also the amido group, and in composition represented by the
form amido.
[1913 Webster] |
| | podobné slovo | definícia |
C10H13NH2
(gcide) | Cymidine \Cy"mi*dine\ ( s?"m?-d?n or -d?n; 104), n. (Chem.)
A liquid organic base, C10H13.NH2, derived from cymene.
[1913 Webster] |
C10H5OHNH2SO3Na
(gcide) | Eikonogen \Ei*kon"o*gen\, n. [Gr. e'ikw`n, e'iko`nos, image +
root of gi`gnesqai to be born.] (Photog. & Chem.)
The sodium salt of a sulphonic acid of a naphthol,
C10H5(OH)(NH2)SO3Na used as a developer.
[Webster 1913 Suppl.] |
C10H7NH2
(gcide) | Naphthylamine \Naph`thyl*am"ine\, n. (Chem.)
One of two basic amido derivatives of naphthalene,
C10H7.NH2, forming crystalline solids.
[1913 Webster] Napierian |
C2H4NH2
(gcide) | Piperazine \Pi*per"a*zine\, n. Also -zin \-zin\ . [Piperidine +
azote + -ine.] (Chem.)
A crystalline substance, (C2H4NH)2, formed by action of
ammonia on ethylene bromide, by reduction of pyrazine, etc.
It is a strong base, and is used as a remedy for gout.
[Webster 1913 Suppl.] |
C2H4NH22
(gcide) | Diamine \Di*am"ine\ (?; 104), n. [Pref. di- + amine.] (Chem.)
A compound containing two amido groups united with one or
more basic or positive radicals, -- as contrasted with a
diamide.
[1913 Webster]
Note: In chemical nomenclature, if any amine or diamine is
named by prefixing the nitrogen group, the name of the
latter takes the form of amido, diamido, etc., thus
ethylene diamine, C2H4.(NH2)2, is also called
diamido-ethylene.
[1913 Webster] |
C2H5NH2
(gcide) | Ethylamine \Eth`yl*am"ine\, n. [Ethyl + amine.] (Chem.)
A colorless, mobile, inflammable liquid, C2H5.NH2, very
volatile and with an ammoniacal odor. It is a strong base,
and is a derivative of ammonia. Called also {ethyl
carbamine}, and amido ethane.
[1913 Webster] |
C2H5OCSNH2
(gcide) | Xanthamide \Xanth*am"ide\, n. [Xanthic + amide.] (Chem.)
An amido derivative of xanthic acid obtained as a white
crystalline substance, C2H5O.CS.NH2; -- called also
xanthogen amide.
[1913 Webster] |
C2O2NH22
(gcide) | Oxamide \Ox*am"ide\, n, [Oxalic + amide.] (Chem.)
A white crystalline neutral substance (C2O2(NH2)2) obtained
by treating ethyl oxalate with ammonia. It is the acid amide
of oxalic acid. Formerly called also oxalamide.
[1913 Webster] |
C3H7C6H4NH2
(gcide) | Cumidine \Cu"mi*dine\ (k?"m?-d?n or -d?n), n. [From Cumin.]
(Chem.)
A strong, liquid, organic base, C3H7.C6H4.NH2, homologous
with aniline.
[1913 Webster] |
C4H9NH2
(gcide) | Butylamine \Bu`tyl*am"ine\, n. [Butyric + -yl + amine.] (Org.
Chem.)
A colorless liquid base, C4H9.NH2, of which there are four
isomeric varieties.
[Webster 1913 Suppl.] |
C6H3OHNH22
(gcide) | Amidol \Am"i*dol\, n. [Amide + -ol as in alcohol.] (Photog. &
Chem.)
A salt of a diamino phenol, C6H3(OH)(NH2)2, used as a
developer.
[Webster 1913 Suppl.] |
C6H5CONH2
(gcide) | Benzamide \Ben*zam"ide\, n. [Benzoin + amide.] (Chem.)
A transparent crystalline substance, C6H5.CO.NH2, obtained
by the action of ammonia upon chloride of benzoyl, as also by
several other reactions with benzoyl compounds.
[1913 Webster] |
C6H5N2C6H3NH22
(gcide) | Chrysoidine \Chrys*o"["i]*dine\, n. [Gr. chryso`s gold + -oid +
-ine.] (Chem.)
An artificial, yellow, crystalline dye, C6H5N2.C6H3(NH2)2.
Also, one of a group of dyestuffs resembling chryso["i]dine
proper.
[1913 Webster] |
C6H5NHNH2
(gcide) | Phenyl \Phe"nyl\, n. [Gr. fai`nein to bring to light + -yl: cf.
F. ph['e]nyle. So called because it is a by-product of
illuminating gas.] (Chem.)
A hydrocarbon radical (C6H5) regarded as the essential
residue of benzene, and the basis of an immense number of
aromatic derivatives.
[1913 Webster]
Phenyl hydrate (Chem.), phenol or carbolic acid.
Phenyl hydrazine (Chem.), a nitrogenous base
(C6H5.NH.NH2) produced artificially as a colorless oil
which unites with acids, ketones, etc., to form easily
crystallized compounds. It is used in organic chemistry,
particulary to isolate compounds in pure form for
analysis.
[1913 Webster + PJC] |
CH2CONH2CO
(gcide) | Barbituric acid \Bar`bi*tu"ric ac"id\ (Chem.)
A white, crystalline substance, CH2(CO.NH)2.CO, derived
from alloxantin, also from malonic acid and urea, and
regarded as a substituted urea.
[1913 Webster] Barbizon school |
CH32C6H3NH2
(gcide) | Xylidine \Xy"li*dine\, n. (Chem.)
Any one of six metameric hydrocarbons, (CH3)2.C6H3.NH2,
resembling aniline, and related to xylene. They are liquids,
or easily fusible crystalline substances, of which three are
derived from metaxylene, two from orthoxylene, and one from
paraxylene. They are called the amido xylenes.
[1913 Webster]
Note: The xylidine of commerce, used in making certain dyes,
consists chiefly of the derivatives of paraxylene and
metaxylene.
[1913 Webster] |
CH32CHCH2CHNH2-COOH
(gcide) | Leucine \Leu"cine\ (l[=oo]"s[=e]n), Leucin
\Leu"cin\(l[=u]"s[i^]n), n. [Gr. leyko`s white.] (Physiol.
Chem.)
a naturally occurring alpha-amino acid
((CH3)2CH.CH2.CH(NH2)-COOH), one of the building units of
almost all proteins of living organisms, both animal and
vegetable. It is one of the essential amino acids (not
synthesized by the human body, a required component for
proper nutrition), and is hydrophobic in character when bound
in proteins. In isolated form it is a white, crystalline,
zwitterionic substance formed, e. g. by the decomposition of
proteins by pancreatic digestion, by the action of boiling
dilute mineral acid, or by putrefaction. Chemically it is to
be considered as amido-caproic acid. It occurs as two optical
isomers, the L- and D-forms. The L-form, L-leucine, is the
natural form, present in most proteins.
[1913 Webster +PJC] |
CH3CH2NH2
(gcide) | Isomer \I"so*mer\ ([imac]"s[-o]*m[~e]r), n. [See Isomeric.]
(Chem.)
A compound which is isomeric with another body or compound; a
compound having the same chemical composition as another
compound; a member of an isomeric series.
[1913 Webster +PJC]
Note: An isomer may be a structural isomer, in which some
of the atoms are bonded to different atoms (as in
CH3.CH2.NH2 and CH3.NH.CH3), or an {optical
isomer}, in which the number and types of chemical
bonds are identical, but the arrangement of the atoms
in three-dimensional space is different; the latter are
also called stereoisomers.
[PJC] |
CH3NH2
(gcide) | Methyl \Meth"yl\, n. [See Methylene.] (Chem.)
A univalent hydrocarbon radical, CH3-, not existing alone
but regarded as an essential residue of methane, and
appearing as a component part of many derivatives; as, methyl
alcohol, methyl ether, methyl amine, etc. [Formerly written
also methule, methyle, etc.]
[1913 Webster]
Methyl alcohol (Chem.), a light, volatile, inflammable
liquid, CH3.OH, obtained by the distillation of wood,
and hence called wood alcohol or wood spirit;
tecnically referred to as methanol; -- called also
methol, carbinol, etc.
Methyl amine (Chem.), a colorless, inflammable, alkaline
gas, CH3.NH2, having an ammoniacal, fishy odor. It is
produced artificially, and also occurs naturally in
herring brine and other fishy products. It is regarded as
ammonia in which a third of its hydrogen is replaced by
methyl, and is a type of the class of substituted
ammonias.
Methyl ether (Chem.), a light, volatile ether CH3.O.CH3,
obtained by the etherification of methyl alcohol; --
called also methyl oxide or dimethyl ether.
Methyl green. (Chem.) See under Green, n.
Methyl orange. (Chem.) See Helianthin.
Methyl violet (Chem.), an artificial dye, consisting of
certain methyl halogen derivatives of rosaniline.
[1913 Webster] |
CnH2n
(gcide) | Ethylene \Eth"yl*ene\ ([e^]th"[i^]l*[=e]n), n. [From Ethyl.]
(Chem.)
A colorless, gaseous hydrocarbon, C2H4, forming an
important ingredient of illuminating gas, and also obtained
by the action of concentrated sulphuric acid in alcohol. It
is an unsaturated compound and combines directly with
chlorine and bromine to form oily liquids (Dutch liquid), --
hence called olefiant gas. Called also ethene, elayl,
and formerly, bicarbureted hydrogen.
[1913 Webster]
Ethylene series (Chem.), the series of unsaturated
hydrocarbons of which ethylene is the type, and
represented by the general formula CnH2n.
[1913 Webster] |
CnH2n2
(gcide) | alkane \alkane\ n. (Chem.)
a non-aromatic saturated acyclic hydrocarbon with the general
formula CnH(2n+2). A member of the alkane series.
[WordNet 1.5]alkane series \alkane series\ n. (Chem.)
a series of acyclic non-aromatic saturated hydrocarbons with
the general formula CnH(2n+2). They include methane,
ethane, propane, butane, and the paraffins.
Syn: methane series, alkane series, paraffin
[WordNet 1.5 PC] |
CONH22
(gcide) | Urea \U"re*a\, a. [NL. See Urine.] (Physiol. Chem.)
A very soluble crystalline body which is the chief
constituent of the urine in mammals and some other animals.
It is also present in small quantity in blood, serous fluids,
lymph, the liver, etc.
[1913 Webster]
Note: It is the main product of the regressive metamorphosis
(katabolism) of proteid matter in the body, and is
excreted daily to the amount of about 500 grains by a
man of average weight. Chemically it is carbamide,
CO(NH2)2, and when heated with strong acids or
alkalies is decomposed into carbonic acid and ammonia.
It unites with acids to form salts, as nitrate of urea,
and it can be made synthetically from ammonium cyanate,
with which it is isomeric.
[1913 Webster]
Urea ferment, a soluble ferment formed by certain bacteria,
which, however, yield the ferment from the body of their
cells only after they have been killed by alcohol. It
causes urea to take up water and decompose into carbonic
acid and ammonia. Many different bacteria possess this
property, especially Bacterium ureae and {Micrococcus
ureae}, which are found abundantly in urines undergoing
alkaline fermentation.
[1913 Webster]Cyanate \Cy"a*nate\ (s?"?-n?t), n. [Cf. F. cuanate. See
Cyanic.] (Chem.)
A salt of cyanic acid.
[1913 Webster]
Ammonium cyanate (Chem.), a remarkable white crystalline
substance, NH4.O.CN, which passes, on standing, to the
organic compound, urea, CO.(NH2)2.
[1913 Webster] |
H2NCH25NH2
(gcide) | Cadaverine \Ca*dav"er*ine\, n. Also Cadaverin \Ca*dav"er*in\ .
[From Cadaver and amine.] (Chem.)
A sirupy, nontoxic ptomaine, H2N.(CH2)5.NH2 (chemically
pentamethylene diamine), formed in putrefaction of flesh,
etc.
[Webster 1913 Suppl. +PJC] |
H2NNH2
(gcide) | Hydrazine \Hy"dra*zine\, n. [Hydr- + azo- + -ine.] (Chem.)
Any one of a series of nitrogenous bases, resembling the
amines and produced by the reduction of certain nitroso and
diazo compounds; as, methyl hydrazine, phenyl hydrazine, etc.
They are derivatives of hydrazine proper, H2N.NH2, which is
a doubled amido group, recently (1887) isolated as a stable,
colorless gas, with a peculiar, irritating odor. As a base it
forms distinct salts. Called also diamide, amidogen, (or
more properly diamidogen), etc.
[1913 Webster] |
HOCH2CHNH2COOH
(gcide) | Serine \Ser"ine\ (s[e^]r"[=e]n; s[e^]r"[i^]n; also, less
correctly, s[=e]r"[=e]n), n. [L. sericus silken.] (Chem.)
one of the natural L-amino acids, obtainable as a white
crystalline nitrogenous substance by the action of dilute
sulphuric acid on silk gelatin. It is found in many proteins,
and, having a free primary hydroxyl group on the side chain,
is involved in the catalytic action at the active site of
some enzymes, such as proteases. The IUPAC abbreviation for
serine in protein sequences is Ser. Chemically it is
2-amino-3-hydroxy-propanoic acid (C3H7NO3),
HO.CH2.CH(NH2).COOH.
[1913 Webster +PJC] Serio-comic |
NaNH2
(gcide) | Sodamide \Sod*am"ide\, n. (Chem.)
A greenish or reddish crystalline substance, NaNH2,
obtained by passing ammonia over heated sodium.
[1913 Webster] |
NH2CNHNH2
(gcide) | Guanidine \Gua"ni*dine\, n. (Physiol. Chem.)
A strongly alkaline base, NH2.CNH.NH2, formed by the
oxidation of guanin, and also obtained combined with methyl
in the decomposition of creatin. Boiled with dilute sulphuric
acid, it yields urea and ammonia.
[1913 Webster] |
NH2COCOHO
(gcide) | Oxamic \Ox*am"ic\, a. [Oxalic + amido] (Chem.)
Pertaining to, or designating, an acid NH2.CO.CO.HO
obtained as a fine crystalline powder, intermediate between
oxalic acid and oxamide. Its ammonium salt is obtained by
boiling oxamide with ammonia.
[1913 Webster] |
NH2COOC2H5
(gcide) | Urethane \U*reth"ane\, n. [F. ur['e]thane. See Urea; Ether.]
1. (Org. Chem.) A white crystalline substance,
NH2.CO.OC2H5, produced by the action of ammonia on ethyl
carbonate or by heating urea nitrate and ethyl alcohol. It
is used as a hypnotic, antipyretic, and antispasmodic.
Hence, any ester of carbamic acid.
[Webster 1913 Suppl.]
2. same as polyurethane.
[PJC] |
NH2HgCl
(gcide) | Precipitate \Pre*cip"i*tate\, n. [NL. praecipitatum: cf. F.
pr['e]cipit['e].] (Chem.)
An insoluble substance separated from a solution in a
concrete state by the action of some reagent added to the
solution, or of some force, such as heat or cold. The
precipitate may fall to the bottom (whence the name), may be
diffused through the solution, or may float at or near the
surface.
[1913 Webster]
2. atmospheric moisture condensed as rain or snow, etc.; same
as precipitation[5].
[PJC]
Red precipitate (Old. Chem), mercuric oxide (HgO) a heavy
red crystalline powder obtained by heating mercuric
nitrate, or by heating mercury in the air. Prepared in the
latter manner, it was the precipitate per se of the
alchemists.
White precipitate (Old Chem.)
(a) A heavy white amorphous powder (NH2.HgCl) obtained
by adding ammonia to a solution of mercuric chloride
or corrosive sublimate; -- formerly called also
infusible white precipitate, and now {amido-mercuric
chloride}.
(b) A white crystalline substance obtained by adding a
solution of corrosive sublimate to a solution of sal
ammoniac (ammonium chloride); -- formerly called also
fusible white precipitate.
[1913 Webster] |
NH2OH
(gcide) | Hydroxylamine \Hy*drox`yl*am"ine\, n. [Hydroxyl + amine.]
(Chem.)
A nitrogenous, organic base, NH2.OH, resembling ammonia,
and produced by a modified reduction of nitric acid. It is
usually obtained as a volatile, unstable solution in water.
It acts as a strong reducing agent.
[1913 Webster] |
NH2SO2OH
(gcide) | Sulphamic \Sulph*am"ic\, a. (Chem.)
Of or pertaining to a sulphamide; derived from, or related
to, a sulphamide; specifically, designating an amido acid
derivative, NH2.SO2.OH, of sulphuric acid (analogous to
sulphonic acid) which is not known in the free state, but is
known in its salts.
[1913 Webster] |
RNH2
(gcide) | Secondary \Sec"ond*a*ry\, a. [Cf. F. secondaire, L. secundaire.
See Second, a.]
1. Succeeding next in order to the first; of second place,
origin, rank, etc.; not primary; subordinate; not of the
first order or rate.
[1913 Webster]
Wheresoever there is moral right on the one hand, no
secondary right can discharge it. --L'Estrange.
[1913 Webster]
Two are the radical differences; the secondary
differences are as four. --Bacon.
[1913 Webster]
2. Acting by deputation or delegated authority; as, the work
of secondary hands.
[1913 Webster]
3. (Chem.) Possessing some quality, or having been subject to
some operation (as substitution), in the second degree;
as, a secondary salt, a secondary amine, etc. Cf.
primary.
[1913 Webster]
Note: A primary amine has the general formula R.NH2; a
secondary amine has the general formula R.NH.R',
where R and R' are alkyl or aryl groups. A primary
alcohol has the general formula R.CH2.OH; a secondary
alcohol has the general formula R.CHOH.R'. Tertiary
amines and alcohols have the general formulas
R.CR'N.R' and R.CR'OH.R', respectively.
[PJC]
4. (Min.) Subsequent in origin; -- said of minerals produced
by alteration or deposition subsequent to the formation of
the original rock mass; also of characters of minerals (as
secondary cleavage, etc.) developed by pressure or other
causes.
[1913 Webster]
5. (Zool.) Pertaining to the second joint of the wing of a
bird.
[1913 Webster]
6. (Med.)
(a) Dependent or consequent upon another disease; as,
Bright's disease is often secondary to scarlet fever.
(b) Occurring in the second stage of a disease; as, the
secondary symptoms of syphilis.
[1913 Webster]
Secondary accent. See the Note under Accent, n., 1.
Secondary age. (Geol.) The Mesozoic age, or age before the
Tertiary. See Mesozoic, and Note under Age, n., 8.
Secondary alcohol (Chem.), any one of a series of alcohols
which contain the radical CH.OH united with two
hydrocarbon radicals. On oxidation the secondary alcohols
form ketones.
Secondary amputation (Surg.), an amputation for injury,
performed after the constitutional effects of the injury
have subsided.
Secondary axis (Opt.), any line which passes through the
optical center of a lens but not through the centers of
curvature, or, in the case of a mirror, which passes
through the center of curvature but not through the center
of the mirror.
Secondary battery. (Elec.) See under Battery, n., 4.
Secondary circle (Geom. & Astron.), a great circle that
passes through the poles of another great circle and is
therefore perpendicular to its plane.
Secondary circuit, Secondary coil (Elec.), a circuit or
coil in which a current is produced by the induction of a
current in a neighboring circuit or coil called the
primary circuit or coil.
Secondary color, a color formed by mixing any two primary
colors in equal proportions.
Secondary coverts (Zool.), the longer coverts which overlie
the basal part of the secondary quills of a bird. See
Illust. under Bird.
Secondary crystal (Min.), a crystal derived from one of the
primary forms.
Secondary current (Elec.), a momentary current induced in a
closed circuit by a current of electricity passing through
the same or a contiguous circuit at the beginning and also
at the end of the passage of the primary current.
Secondary evidence, that which is admitted upon failure to
obtain the primary or best evidence.
Secondary fever (Med.), a fever coming on in a disease
after the subsidence of the fever with which the disease
began, as the fever which attends the outbreak of the
eruption in smallpox.
Secondary hemorrhage (Med.), hemorrhage occuring from a
wounded blood vessel at some considerable time after the
original bleeding has ceased.
Secondary planet. (Astron.) See the Note under Planet.
Secondary qualities, those qualities of bodies which are
not inseparable from them as such, but are dependent for
their development and intensity on the organism of the
percipient, such as color, taste, odor, etc.
Secondary quills or Secondary remiges (Zool.), the quill
feathers arising from the forearm of a bird and forming a
row continuous with the primaries; -- called also
secondaries. See Illust. of Bird.
Secondary rocks or Secondary strata (Geol.), those lying
between the Primary, or Paleozoic, and Tertiary (see
Primary rocks, under Primary); -- later restricted to
strata of the Mesozoic age, and at present but little
used.
Secondary syphilis (Med.), the second stage of syphilis,
including the period from the first development of
constitutional symptoms to the time when the bones and the
internal organs become involved.
Secondary tint, any subdued tint, as gray.
Secondary union (Surg.), the union of wounds after
suppuration; union by the second intention.
[1913 Webster]
Syn: Second; second-rate; subordinate; inferior.
[1913 Webster] |
ROCH2CHOR'CH2OPO2OCH2CH2NH2
(gcide) | cephalin \ceph"a*lin\ (k[e^]f"[.a]*l[i^]n), n. [Gr. kefalh` the
head; it was supposed by Thudichum to exist in brain tissue.]
(Physiol. Chem.)
One of a group of phospholipids (nitrogenous phosphorized
fatty substances), present in all living cells and
particularly evident in nervous tissue. The cephalins consist
of glycerol phosphate in which the two free hydroxyls of the
glycerol are esterified with fatty acids, and the phosphate
forms an ester linkage to the hydroxyl of ethanolamine. The
phosphate may be linked to the alpha (end) or beta (middle)
hydroxyl of the glycerol portion. The natural isomers are of
the alpha form, and have the general formula
R.O.CH2.CHOR'.CH2.O.PO2.O.CH2.CH2.NH2, where R and R' are
the acyl residues of long-chain fatty acids, which may be the
same or different. [Also spelled kephalin.]
Syn: phosphatidylethanolamine. [PJC] |
ZnNH22
(gcide) | Zinc \Zinc\ (z[i^][ng]k), n. [G. zink, probably akin to zinn
tin: cf. F. zinc, from the German. Cf. Tin.] (Chem.)
An abundant element of the magnesium-cadmium group, extracted
principally from the minerals zinc blende, smithsonite,
calamine, and franklinite, as an easily fusible bluish white
metal, which is malleable, especially when heated. It is not
easily oxidized in moist air, and hence is used for sheeting,
coating galvanized iron, etc. It is used in making brass,
britannia, and other alloys, and is also largely consumed in
electric batteries. Symbol Zn. Atomic number 30. Atomic
weight 65.38. [Formerly written also zink.]
[1913 Webster]
Butter of zinc (Old Chem.), zinc chloride, ZnCl2, a
deliquescent white waxy or oily substance.
Oxide of zinc. (Chem.) See Zinc oxide, below.
Zinc amine (Chem.), a white amorphous substance,
Zn(NH2)2, obtained by the action of ammonia on zinc
ethyl; -- called also zinc amide.
Zinc amyle (Chem.), a colorless, transparent liquid,
composed of zinc and amyle, which, when exposed to the
atmosphere, emits fumes, and absorbs oxygen with rapidity.
Zinc blende [cf. G. zinkblende] (Min.), a native zinc
sulphide. See Blende, n.
(a) .
Zinc bloom [cf. G. zinkblumen flowers of zinc, oxide of
zinc] (Min.), hydrous carbonate of zinc, usually occurring
in white earthy incrustations; -- called also
hydrozincite.
Zinc ethyl (Chem.), a colorless, transparent, poisonous
liquid, composed of zinc and ethyl, which takes fire
spontaneously on exposure to the atmosphere.
Zinc green, a green pigment consisting of zinc and cobalt
oxides; -- called also Rinmann's green.
Zinc methyl (Chem.), a colorless mobile liquid Zn(CH3)2,
produced by the action of methyl iodide on a zinc sodium
alloy. It has a disagreeable odor, and is spontaneously
inflammable in the air. It has been of great importance in
the synthesis of organic compounds, and is the type of a
large series of similar compounds, as zinc ethyl, zinc
amyle, etc.
Zinc oxide (Chem.), the oxide of zinc, ZnO, forming a
light fluffy sublimate when zinc is burned; -- called also
flowers of zinc, philosopher's wool, nihil album,
etc. The impure oxide produced by burning the metal,
roasting its ores, or in melting brass, is called also
pompholyx, and tutty.
Zinc spinel (Min.), a mineral, related to spinel,
consisting essentially of the oxides of zinc and
aluminium; gahnite.
Zinc vitriol (Chem.), zinc sulphate. See White vitriol,
under Vitriol.
Zinc white, a white powder consisting of zinc oxide, used
as a pigment.
[1913 Webster] |
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