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Chemical compound
Selenium trioxide is the inorganic compound with the formula SeO3. It is white, hygroscopic solid. It is also an oxidizing agent and a Lewis acid. It
Selenium_trioxide
Chemical element with atomic number 34 (Se)
arsenic. Selenium forms two oxides: selenium dioxide (SeO2) and selenium trioxide (SeO3). Selenium dioxide is formed by combustion of elemental selenium: Se
Selenium
Chemical compound
Sulfur trioxide (alternative spelling sulphur trioxide) is the chemical compound with the formula SO3. It has been described as "unquestionably the most
Sulfur_trioxide
Compound with three oxygen atoms
structure. Carbon trioxide, CO3 Chromium trioxide, CrO3 Molybdenum trioxide, MoO3 Rhenium trioxide, ReO3 Selenium trioxide, SeO3 Sulfur trioxide, SO3 Tellurium
Trioxide
Chemical compounds containing selenium
forms two oxides: selenium dioxide (SeO2) and selenium trioxide (SeO3). Selenium dioxide is formed by the reaction of elemental selenium with oxygen: Se
Selenium_compounds
Chemical compound
the production of sulfuric acid by hydration of sulfur trioxide, the hydration of selenium trioxide is an impractical method. Instead, selenic acid may also
Selenic_acid
Chemical compound
Selenium dioxide is the chemical compound with the formula SeO2. This colorless solid is one of the most frequently encountered compounds of selenium
Selenium_dioxide
Index of chemical compounds with the same name
Selenium oxide may refer to either of the following compounds: Selenium dioxide, SeO2 Selenium trioxide, SeO3 Diselenium pentoxide, Se2O5 This set index
Selenium_oxide
Chemical compound
of sulfur trioxide in SeOCl2 likely form [SeOCl]+[SO3Cl]− the same way. The compound hydrolyzes readily to form hydrogen chloride and selenium dioxide,[citation
Selenium_oxydichloride
Chemical compound
of selenic acid. Potassium selenate is produced by the reaction of selenium trioxide and potassium hydroxide. SeO3 + 2 KOH → K2SeO4 + H2O Alternatively
Potassium_selenate
SO2 Sulfur trioxide, SO3 Higher sulfur oxides, SOx where x > 3 Selenium dioxide, SeO2 Selenium trioxide, SeO3 Many "alloys" of selenium and sulfur in
Interchalcogen
Effect of chemical element
similar to that of arsenic trioxide. The chronic toxic dose of selenite for humans is about 2400 to 3000 micrograms of selenium per day for a long time.
Selenium_in_biology
oxybromide – SeOBr2 Selenium oxydichloride – SeOCl2 Selenium tetrachloride – SeCl4 Selenium tetrafluoride – SeF4 Selenium trioxide – SeO3 Selenoyl fluoride
List_of_inorganic_compounds
Chemical element with atomic number 33 (As)
oxidises readily in air to form arsenic trioxide and water, and analogous reactions take place with sulfur and selenium instead of oxygen. Arsenic forms colorless
Arsenic
Group of chemical elements
sulfur dioxide and sulfur trioxide. Tellurium also forms oxides. There are some chalcogen sulfides as well. These include selenium sulfide, an ingredient
Chalcogen
dioxydifluoride 14984–81–7 SeO3 selenium trioxide 13768–86–0 SeS selenium monosulfide 7446–34–6 SeS2 selenium disulfide 7488–56–4 Se2S6 selenium hexasulfide 75926–26–0
List of CAS numbers by chemical compound
List_of_CAS_numbers_by_chemical_compound
Chemical element with metallic and nonmetallic properties
trioxide has been used in the production of natural gas, to boost the removal of carbon dioxide, as have selenous acid and tellurous acid. Selenium acts
Metalloid
Chemical compound
treated with sodium selenate and then arsenic trioxide to reduce the compound and provide elemental selenium. Sodium selenate is also used as a decolorizing
Sodium_selenate
Any chemical compound containing at least one tellurium atom
periodic table, which also includes oxygen, sulfur, selenium and polonium: Tellurium and selenium compounds are similar. Tellurium exhibits the oxidation
Tellurium_compounds
Chemical element with atomic number 74 (W)
elevated temperatures (i.e., when red-hot) it reacts with oxygen to form the trioxide compound tungsten(VI), WO3. It will, however, react directly with fluorine
Tungsten
Chemical compounds containing arsenic
readily in the air to form arsenic trioxide and water, and analogous reactions take place with sulfur and selenium instead of oxygen. Arsenic forms colorless
Arsenic_compounds
Chemical element with atomic number 51 (Sb)
improves the rigidity of lead-alloy plates in lead–acid batteries. Antimony trioxide is a prominent additive for halogen-containing flame retardants. Antimony
Antimony
Chemical element with atomic number 52 (Te)
toxic, rare, silver-white metalloid. Tellurium is chemically related to selenium and sulfur, all three of which are chalcogens. It is occasionally found
Tellurium
Chemical compound with hydrogen and pnictogen atoms
easily oxidised to arsenic or antimony trioxide and water; a similar reaction happens with sulfur or selenium. Reaction with metals at elevated temperatures
Pnictogen_hydride
Chemical compound
chemical formula S3O8Cl2. Trisulfuryl chloride is obtained from sulfur trioxide and carbon tetrachloride at 80 °C: 3SO3 + CCl4 → S3O8Cl2 + OCCl2 The compound
Trisulfuryl_chloride
Chemical element with atomic number 86 (Rn)
Radon oxides are among the few other reported compounds of radon; only the trioxide (RnO 3) has been confirmed. The higher fluorides RnF 4 and RnF 6 have been
Radon
Rain that is unusually acidic
reduced ability to remove respiratory infections. The effects of sulfur trioxide and sulfuric acid are similar because they both produce sulfuric acid when
Acid_rain
Category of chemical elements
elements intermediate between metals and nonmetals: Carbon Phosphorus Selenium One or more of the six elements most commonly recognized as metalloids
Nonmetal
Chemical compounds with a sulfur atom
burning sulfur: S + O2 → SO2 (sulfur dioxide) 2 SO2 + O2 → 2 SO3 (sulfur trioxide) Many other sulfur oxides are observed including the sulfur-rich oxides
Sulfur_compounds
Chemical element with atomic number 8 (O)
or by chemical processes such as spontaneous decomposition of hydrogen trioxide in water or the reaction of hydrogen peroxide with hypochlorite. Triatomic
Allotropes_of_oxygen
Substance that can explode
Oxides of xenon: Xenon dioxide Xenon oxytetrafluoride Xenon tetroxide Xenon trioxide A secondary explosive is less sensitive than a primary explosive and requires
Explosive
Chemical element with atomic number 53 (I)
nitrogen oxide, ethylene, and hydrogen sulfide. It reacts with sulfur trioxide and peroxydisulfuryl difluoride (S2O6F2) to form salts of the iodyl cation
Iodine
Index of chemical compounds with the same name
together with xenon hexafluoride, and perhaps in the production of radon trioxide: these may have been RnF4, RnF6, or both. It is likely that the difficulty
Hexafluoride
Medical condition
Arsenic trioxide is a white, crystalline powder that closely resembles sugar. The 1858 Bradford sweets poisoning incident happened because it was mistaken
Poisoning
Chemical element with atomic number 42 (Mo)
trioxide (MoO 3). The black disulfide is the main mineral. It is roasted in air to give the trioxide: 2 MoS 2 + 7 O 2 → 2 MoO 3 + 4 SO 2 The trioxide
Molybdenum
Chemical element with atomic number 35 (Br)
above −40 °C, violently decomposing to its elements at 0 °C. Dibromine trioxide, syn-BrOBrO2, is also known; it is the anhydride of hypobromous acid and
Bromine
Organic compounds with the structure R–S(=O)2–OH
sulfonate salts are produced by treatment of organic compounds with sulfur trioxide. One large scale application of this method is the production of alkylbenzenesulfonic
Sulfonic_acid
with an unknown boiling point. Fluoroamine Trifluoromethyl trifluoroethyl trioxide CF3OOOCF2CF3 boils between 10 and 20° Bis-trifluoromethyl carbonate boils
List_of_gases
tetroxide 10544-72-6 250 Nitrogen trifluoride 7783-54-2 5000 Nitrogen trioxide 10544-73-7 250 Oleum (65% to 80% by weight) 8014-95-7 1000 Osmium tetroxide
Highly_hazardous_chemical
Related chemical elements of the periodic table
A powdered sample of boron trioxide (B2O3), one of the oxides of boron
Boron_group
Illness from ingesting arsenic
nonenzymatically from pentoxide to trioxide, using glutathione, or it is mediated by enzymes. Reduction of arsenic pentoxide to arsenic trioxide increases its toxicity
Arsenic_poisoning
Special glass type used for optical systems
silica glass absorbs wavelengths below 160 nm, a glass based on boron trioxide (B2O3) absorbs below 172 nm, a phosphorus pentoxide glass (P2O5) absorbs
Optical_glass
Intentional introduction of impurities into an intrinsic semiconductor
long known empirically in such devices as crystal radio detectors and selenium rectifiers. For instance, in 1885 Shelford Bidwell, and in 1930 the German
Doping_(semiconductor)
Numbers, classes, and proper shipping names allocated to dangerous goods
U.S. Government Printing Office. 1988. Retrieved 2015-08-03. "Vanadium Trioxide". Toxnet: Toxicology Data Network. NLM. Retrieved 2015-08-03. ADR Dangerous
List of UN numbers 2801 to 2900
List_of_UN_numbers_2801_to_2900
Chemical compound
Gruyter. p. 1081. ISBN 3-11-011451-8. K. W. Bagnall (1966). The Chemistry of Selenium, Tellurium and Polonium. London: Elsevier. pp. 59–60. ISBN 0-08-018855-9
Tellurium_dioxide
Chemical element with atomic number 83 (Bi)
+3; a few have states +5 or −3. The trioxide and trisulfide can both be made from the elements, although the trioxide is extremely corrosive at high temperatures
Bismuth
Use of ions to cause chemical changes
antimony pentafluoride. Gallium, Selenium and Indium are often implanted from solid sources such as selenium dioxide for selenium although it can also be implanted
Ion_implantation
Chemical element with atomic number 16 (S)
conditions gives sulfur dioxide (oxidation state +4), formation of sulfur trioxide (oxidation state +6) requires a temperature of 400–600 °C (750–1,100 °F)
Sulfur
Light-conducting fiber
or aluminium oxide (Al2O3)) or to lower it (e.g. with fluorine or boron trioxide (B2O3)). Doping is also possible with laser-active ions (for example, rare-earth-doped
Optical_fiber
Chemical element with atomic number 17 (Cl)
at standard conditions to produce zirconium tetrachloride, and uranium trioxide reacts with hexachloropropene when heated under reflux to give uranium
Chlorine
Transparent non-crystalline solid material
Borosilicate glasses (e.g. Pyrex, Duran) typically contain 5–13% boron trioxide (B2O3). Borosilicate glasses have fairly low coefficients of thermal expansion
Glass
Chemical processes that make use of arsenic
organisms. This pattern is general for other related elements, including selenium, which can exhibit both beneficial and deleterious effects. Arsenic biochemistry
Arsenic_biochemistry
Compounds with similar properties to polyatomic halogens
chlorine azide (Cl−N3), as well as interpseudohalogens like dinitrogen trioxide (O=N−NO2), nitric acid (HO−NO2) and cyanogen azide (N3−CN). Not all combinations
Pseudohalogen
Device used in television cameras
consists of cadmium selenide trioxide (CdSeO3). Due to its wide spectral response, it is labelled as panchromatic selenium vidicon, hence the acronym 'pasecon'
Video_camera_tube
Chemical element with atomic number 24 (Cr)
carcinogenic. According to the European Chemicals Agency (ECHA), chromium trioxide that is used in industrial electroplating processes is a "substance of
Chromium
Nonsteroidal anti-inflammatory medication
Tabelecleucel Talimogene laherparepvec Other/ungrouped Aflibercept Arsenic trioxide# (Realgar/Indigo naturalis#) Asparagine depleters (Asparaginase#/Pegaspargase)
Celecoxib
Chemical element with atomic number 7 (N)
be identified: N2O (nitrous oxide), NO (nitric oxide), N2O3 (dinitrogen trioxide), NO2 (nitrogen dioxide), N2O4 (dinitrogen tetroxide), N2O5 (dinitrogen
Nitrogen
Chemical compound
triphenylphosphine to give [S(NPPh3)3]3+[Cl−]3, a triimide analogue to sulfur trioxide. Conversely, S4N+ 3 salts react with aluminum azide to recover S4N4. Treatment
Tetrasulfur_tetranitride
Group of chemical elements
a bright yellow pigment. Though misidentified as a lead compound with selenium and iron components, the mineral was crocoite with a formula of PbCrO4
Group_6_element
Chemical element with atomic number 92 (U)
corresponding oxides are, respectively, uranium dioxide (UO 2) and uranium trioxide (UO 3). Other uranium oxides such as uranium monoxide (UO), diuranium pentoxide
Uranium
chemistry of selenium is largely covalent in nature, noting it can form ionic selenides with highly electropositive metals. The common oxide of selenium (SeO3)
Properties of nonmetals (and metalloids) by group
Properties_of_nonmetals_(and_metalloids)_by_group
Chemical compounds and groups containing nitrogen with a lone pair (:N)
_{\text{water}}}} Amines undergo sulfamation upon treatment with sulfur trioxide or sources thereof: R 2 NH + SO 3 ⟶ R 2 NSO 3 H {\displaystyle {\ce {R2NH
Amine
Chemical element with atomic number 6 (C)
carbon suboxide (C 3O 2), the unstable dicarbon monoxide (C2O), carbon trioxide (CO3), cyclopentanepentone (C5O5), cyclohexanehexone (C6O6), and mellitic
Carbon
Hydrocarbon compound (C6H6)
benzene involves the use of oleum, a mixture of sulfuric acid with sulfur trioxide. Sulfonated benzene derivatives are useful detergents. In nitration, benzene
Benzene
Chemical compound with hydrogen and chalcogen atoms
of hydrogen with chalcogen atoms (elements of group 16: oxygen, sulfur, selenium, tellurium, polonium, and livermorium). Water, the first chemical compound
Hydrogen_chalcogenide
Any chemical compound having at least one bromine atom
above −40 °C, violently decomposing to its elements at 0 °C. Dibromine trioxide, syn-BrOBrO2, is also known; it is the anhydride of hypobromous acid and
Bromine_compounds
Organic compounds of the form R–O–N=O
1021/ja01221a051 Media related to Alkyl nitrites at Wikimedia Commons Alkyl nitrite synthesis, with a distinct blue layer of dinitrogen trioxide from decomposition
Alkyl_nitrite
Inorganic compound (SOCl2)
sulfur trioxide and sulfur dichloride. This synthesis can be adapted to the laboratory by heating oleum to slowly distill the sulfur trioxide into a cooled
Thionyl_chloride
(CmH2–3) has been reported to give a volatile form of CmO2 and the volatile trioxide CmO3, one of two known examples of the very rare +6 state for curium. Another
Curium_compounds
bromoformonitrile oxide 74213-25-5 CBrNS bromine thiocyanate 29284-59-1 CBrNSe selenium bromide cyanide 80039-77-6 CBr2 dibromomethylene 4371-77-1 CBr2ClF chloro
List of compounds with carbon number 1
List_of_compounds_with_carbon_number_1
Chemicals regulated in the United States
Anthraquinone Cancer 84-65-1 September 28, 2007 Antimony oxide (Antimony trioxide) Cancer 1309-64-4 October 1, 1990 Aramite Cancer 140-57-8 July 1, 1987
California Proposition 65 list of chemicals
California_Proposition_65_list_of_chemicals
Chemical element with atomic number 55 (Cs)
is also used in the catalytic conversion of sulfur dioxide into sulfur trioxide in the production of sulfuric acid. Caesium fluoride enjoys a niche use
Caesium
Chemical element with atomic number 54 (Xe)
4 and 129 IBr− 2, respectively. Three oxides of xenon are known: xenon trioxide (XeO 3) and xenon tetroxide (XeO 4), both of which are dangerously explosive
Xenon
Chemical compound
antimony, antimony tribromide, antimony trioxide, or antimony trisulfide. It also may be made by treating antimony trioxide with concentrated hydrochloric acid
Antimony_trichloride
Any of the chemical elements in the second row of the periodic table
obtain pure boron. It can be made through the magnesium reduction of boron trioxide, B2O3. This oxide is made by melting boric acid, B(OH)3, which in turn
Period_2_element
Town in Junín, Peru
silver (mainly from refinery residues), antimony, arsenic trioxide, bismuth, cadmium, indium, selenium, tellurium, sulfuric acid and oleum. This technology
La_Oroya
Hypothetical charge of an atom if all its bonds to different atoms were fully ionic
P.; Lobanov, Yu. V. (October 2011). "Formation of volatile curium(VI) trioxide CmO3". Radiochemistry. 53 (5). SP MAIK Nauka/Interperiodica: 453–6. Bibcode:2011Radch
Oxidation_state
Chemical compound of sulfur and oxygen
intermediate in the production of sulfuric acid, being converted to sulfur trioxide, and then to oleum, which is made into sulfuric acid. Sulfur dioxide for
Sulfur_dioxide
Chemical element with atomic number 5 (B)
purity and temperature. At higher temperatures boron burns to form boron trioxide: 4 B + 3 O2 → 2 B2O3 In some ways, boron is comparable to carbon in its
Boron
Chemical group (–CH2–C6H5)
nitric acid (HNO3): (ArCHR2 → ArCOOH). Finally, the complex of chromium trioxide and 3,5-dimethylpyrazole (CrO3−dmpyz) will selectively oxidize a benzylic
Benzyl_group
Any of the fifteen lanthanides plus scandium and yttrium
much as 7,200 metric tons of ferro niobium and 95 metric tons of scandium trioxide annually. As of 2022, financing is still in the works. As of 2006, the
Rare-earth_element
Chemical element with atomic number 15 (P)
This waxy white solid reacts vigorously with water. Similarly, phosphorus trioxide (P4O6, also called tetraphosphorus hexoxide) is the anhydride of P(OH)3
Phosphorus
Polyatomic ion (NO3, charge –1) found in explosives and fertilisers
Nitrification Nitratine Nitrite, the anion NO2− Nitrogen oxide Nitrogen trioxide, the neutral radical NO 3 Peroxynitrate, OONO2− Sodium nitrate Laue W,
Nitrate
Organic compound containing the functional group R–CH=O
1002/14356007.a11_619. Ratcliffe, R. W. (1988). "Oxidation with the Chromium Trioxide-Pyridine Complex Prepared in situ: 1-Decanal". Organic Syntheses; Collected
Aldehyde
Chemical element with atomic number 96 (Cm)
(CmH2–3) has been reported to give a volatile form of CmO2 and the volatile trioxide CmO3, one of two known examples of the very rare +6 state for curium. Another
Curium
Any chemical compound having at least one nickel atom
solution. Mixed and double sulfides of nickel also exist. Nickel with selenium forms several compounds Ni1−xSe 0≤x≤0.15, Ni2Se3, NiSe2 also known as a
Nickel_compounds
Chemical compound
obtained in 90% crude yield. Instead of dinitrogen tetroxide, dinitrogen trioxide N2O3 (obtained from arsenic(III)oxide with nitric acid) can also be used
Diethyl_oxomalonate
Chemical compound
Tabelecleucel Talimogene laherparepvec Other/ungrouped Aflibercept Arsenic trioxide# (Realgar/Indigo naturalis#) Asparagine depleters (Asparaginase#/Pegaspargase)
Eflornithine
Exposure to dangerous levels of airborne contaminants
86 mg/m3 300 ppm 126998, carcinogenic substance 1333-82-0 1194 Chromium trioxide 15 mg/m3 - 1333820, carcinogenic substance - - Chromium(II) 250 mg/m3 -
Immediately dangerous to life or health
Immediately_dangerous_to_life_or_health
Chemical element with atomic number 43 (Tc)
be produced by reduction of the Tc2O7. Unlike the case for rhenium, a trioxide has not been isolated for technetium. However, TcO3 has been identified
Technetium
Chemical compound
Tabelecleucel Talimogene laherparepvec Other/ungrouped Aflibercept Arsenic trioxide# (Realgar/Indigo naturalis#) Asparagine depleters (Asparaginase#/Pegaspargase)
Alitretinoin
Group of chemical elements
Rhenium, in addition to the +4 and +7 oxidation states, also forms a trioxide. It can be formed by reducing rhenium(VII) oxide with carbon monoxide at
Group_7_element
Chemical element with atomic number 85 (At)
useful form of astatine. The irradiated bismuth (or sometimes bismuth trioxide) target is first dissolved in, for example, concentrated nitric or perchloric
Astatine
System of detailed crystal structure classification
P3c1 Lanthanum trifluoride/Fluocerite structure D09 α-ReO3 Pm3m α-Rhenium trioxide structure D011 Fe3C Pnma Cementite structure D012 FeF3 R3c D014 → D012
Strukturbericht_designation
thallium arsenide 12006–09–6 As2I4 arsenic diiodide 13770–56–4 As2O3 arsenic trioxide 1327–53–3 As2P2 arsenic diphosphide 12512–03–7 As2O5 arsenic pentoxide
Glossary_of_chemical_formulae
Type of saturated hydrocarbon compound
disulfide. Still other chemicals are prepared by reaction with sulfur trioxide and nitric oxide. Some light hydrocarbons are used as aerosol sprays. Alkanes
Alkane
Chemical element with atomic number 75 (Re)
ReOCl3. The most common oxide is the volatile yellow Re2O7. The red rhenium trioxide ReO3 adopts a perovskite-like structure. Other oxides include Re2O5, ReO2
Rhenium
Heterocyclic aromatic organic compound
Lewis bases, can be illustrated by C-B plots. One example is the sulfur trioxide pyridine complex (melting point 175 °C), which is a sulfation agent used
Pyridine
Chemical element with atomic number 93 (Np)
this, McMillan did observe two new beta decay half-lives in the uranium trioxide target itself, which meant that whatever was producing the radioactivity
Neptunium
global production of the following mineral commodities: fourth in arsenic trioxide, third in bismuth, third in copper, fifth in gold, fourth in lead, fourth
Mineral_industry_of_Peru
SELENIUM TRIOXIDE
SELENIUM TRIOXIDE
SELENIUM TRIOXIDE
SELENIUM TRIOXIDE
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SELENIUM TRIOXIDE
SELENIUM TRIOXIDE
SELENIUM TRIOXIDE
SELENIUM TRIOXIDE
SELENIUM TRIOXIDE
n.
A metallic mineral, a selenide of copper and silver; -- so called by Berzelius on account of its being found soon after the discovery of the metal selenium.
a.
Of or pertaining to the splenial bone or splenius muscle.
n.
A binary compound of selenium, or a compound regarded as binary; as, ethyl selenide.
n.
The thickened posterior border of the corpus callosum; -- so called in allusion to its shape.
n.
A selenide.
n.
A salt of selenious acid.
n.
A nonmetallic element of the sulphur group, and analogous to sulphur in its compounds. It is found in small quantities with sulphur and some sulphur ores, and obtained in the free state as a dark reddish powder or crystalline mass, or as a dark metallic-looking substance. It exhibits under the action of light a remarkable variation in electric conductivity, and is used in certain electric apparatus. Symbol Se. Atomic weight 78.9.
n.
An element that in combination produces amphid salt; -- applied by Berzelius to oxygen, sulphur, selenium, and tellurium.
n.
A selenide containing two atoms of selenium in each molecule.
a.
Combined with selenium as in a selenide; as, seleniureted hydrogen.
a.
Of or pertaining to selenite; resembling or containing selenite.
n.
A flat muscle of the back of the neck.
n.
A species of fern with fronds (Asplenium Ceterach).
a.
Of or pertaining to selenium; derived from, or containing, selenium; specifically, designating those compounds in which the element has a higher valence as contrasted with selenious compounds.
n.
A hypothetical radical of selenium, analogous to sulphonium.
a.
Containing, or impregnated with, selenium; as, seleniferous pyrites.
n.
A variety of gypsum, occuring in transparent crystals or crystalline masses.
a.
Of, pertaining to, or containing, selenium; specifically, designating those compounds in which the element has a lower valence as contrasted with selenic compounds.