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Chemical compound of formula CaS
Calcium sulfide is the chemical compound with the formula CaS. This white material crystallizes in cubes like rock salt. CaS has been studied as a component
Calcium_sulfide
Former industrial process for producing sodium carbonate from salt
Act, the noxious calcium sulfide was converted into calcium carbonate: CaS(s) + CO2(g) + H2O(l) → CaCO3(s) + H2S(g) The hydrogen sulfide can be used as
Leblanc_process
Chemical compound
the sulfate to sulfide: Na2SO4 + 2 C → Na2S + 2 CO2 The second stage is the reaction to produce sodium carbonate and calcium sulfide: Na2S + CaCO3 →
Sodium_carbonate
Chemical compound
about 80–85% of CaC2 (the rest is CaO (calcium oxide), Ca3P2 (calcium phosphide), CaS (calcium sulfide), Ca3N2 (calcium nitride), SiC (silicon carbide), C
Calcium_carbide
Inorganic compound generated in the production of metallic iron
properties of MgS resemble those of related ionic sulfides such as those of sodium, barium, or calcium. It reacts with oxygen to form the corresponding
Magnesium_sulfide
Historical scientific theory
weight of strontium sulfide is likewise the arithmetic mean of that of pure (water-free) calcium sulfide and that [i.e., the sulfide] of barium, namely
Döbereiner's_triads
Chemical compound
technical-grade calcium carbide contaminated with calcium sulfide. Divinylsulfide was first prepared in 1920 by the reaction of bis(2-chloroethyl)sulfide with sodium
Divinyl_sulfide
Chemical compound of calcium
Calcium oxide (formula: CaO), commonly known as quicklime or burnt lime, is a widely used chemical compound. It is a white, caustic, alkaline, crystalline
Calcium_oxide
Chemical compound
Barium sulfide is the inorganic compound with the formula BaS. BaS is the barium compound produced on the largest scale. It is an important precursor
Barium_sulfide
1760–1840 agrarian to industrial era shift
The sodium sulfate was heated with calcium carbonate and coal to give a mixture of sodium carbonate and calcium sulfide. Adding water separated the soluble
Industrial_Revolution
Emission of light by a substance that has absorbed light
different incorrect conclusion. In 1842, A.E. Becquerel observed that calcium sulfide emits light after being exposed to solar ultraviolet, making him the
Fluorescence
Chemical compound
Strontium sulfide is the inorganic compound with the formula SrS. It is a white solid. The compound is an intermediate in the conversion of strontium
Strontium_sulfide
Chemical compound
calcium carbonate with hydrogen sulfide: Ca(OH)2 + 2 H2S → Ca(HS)2 + 2 H2O CaCO3 + 2 H2S → Ca(HS)2 + H2O + CO2 "Calcium hydrosulfide". pubchem.ncbi.nlm
Calcium_hydrosulfide
Microbial degradation involving the sulfur cycle
specific areas, biogenic sulfide corrosion can deteriorate metal or several millimeters per year of concrete (see Table). For calcium aluminate cements, processes
Biogenic_sulfide_corrosion
Chemical compound
Calcium hypochlorite is an inorganic compound with chemical formula Ca(ClO)2, also written as Ca(OCl)2. It is a white solid, although commercial samples
Calcium_hypochlorite
Chemical element with atomic number 20 (Ca)
Calcium is a chemical element; it has symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride
Calcium
Type of furnace used for smelting to produce industrial metals
This is done by adding calcium oxide, which reacts with the iron sulfide contained in the pig iron to form calcium sulfide (called lime desulfurization)
Blast_furnace
Crystallographic system where the unit cell is in the shape of a cube
blende") is named after the mineral zincblende (sphalerite), one form of zinc sulfide (β-ZnS). As in the rock-salt structure, the two atom types form two interpenetrating
Cubic_crystal_system
Poisonous and flammable gas
Hydrogen sulfide (preferred IUPAC name and American English) or hydrogen sulphide (Commonwealth English) is a chemical compound with the formula H2S.
Hydrogen_sulfide
Topics referred to by the same term
Academy of Sciences, a research association in the Czech Republic Calcium sulfide (CaS), a chemical compound Carotid artery stenting, endovascular surgery
CAS
Ion, and compounds containing the ion
of sulfide salts are corrosive. Sulfide also refers to large families of inorganic and organic compounds, e.g. lead sulfide and dimethyl sulfide. Hydrogen
Sulfide
Change in energy from formation of 1 mole of substance
Solid Ca(OH)2 −897.5 Calcium oxide Solid CaO −603.3 Calcium sulfate Solid CaSO4 −1309.1 Calcium sulfide Solid CaS −477.4 Carbon Carbon (graphite) Solid C
Standard Gibbs free energy of formation
Standard_Gibbs_free_energy_of_formation
Californium(III) sulfide – Cf2S3 Californium oxyfluoride – CfOF Californium oxychloride – CfOCl Calcium bromide – CaBr2 Calcium carbide – CaC2 Calcium carbonate
List_of_inorganic_compounds
Chemical compound
Mercury sulfide or mercury(II) sulfide is a chemical compound composed of the chemical elements mercury and sulfur. It is represented by the chemical formula
Mercury_sulfide
CaS calcium sulfide 20548–54–3 CaSO4 calcium sulfate 7778–18–9 CaSe calcium selenide 1305–84–6 CaSiO3 calcium metasilicate 1344–95–2 CaSi2 calcium silicide
List of CAS numbers by chemical compound
List_of_CAS_numbers_by_chemical_compound
Chemical mixture used as a pest control agent
is in the range 11–12, typical for sulfides, which are also strong bases. When the hydrolysis of calcium sulfide is taken into account, the individual
Lime_sulfur
Light energy absorbance and re-emission
signage. Zinc sulfide (left) and strontium aluminate (right), in visible light, in darkness, and after 4 minutes in the dark. Calcium sulfide (left) and
Phosphorescence
Soft calcium sulfate mineral
formed as a by-product of sulfide oxidation, amongst others by pyrite oxidation, when the sulfuric acid generated reacts with calcium carbonate. Its presence
Gypsum
Change of enthalpy during the formation of a compound from its elements
Ca(OH)2 −1002.82 Calcium oxide Solid CaO −635.09 Calcium sulfate Solid CaSO4 −1434.52 Calcium sulfide Solid CaS −482.4 Wollastonite Solid CaSiO3 −1630
Standard enthalpy of formation
Standard_enthalpy_of_formation
calcium peroxide 1305–79–9 CaP calcium monophosphide 39373–03–0 CaS calcium sulfide hepar calcies sulfurated lime oldhamite 20548–54–3 CaSO3 calcium sulfite
Glossary_of_chemical_formulae
Chemical compound
Calcium nitrate is an inorganic compound with the formula Ca(NO3)2. It forms hydrates Ca(NO3)2·xH2O. The anhydrous compound, which is rarely encountered
Calcium_nitrate
Chemical derived from gypsum used in food and industry
Calcium sulfate (or calcium sulphate) is an inorganic salt with the chemical formula CaSO 4. It occurs in several hydrated forms; the anhydrous state
Calcium_sulfate
Luminescent substance
50% of intensity), and decay time (in seconds). Examples: Calcium sulfide with strontium sulfide with bismuth as activator, (Ca,Sr)S:Bi, yields blue light
Phosphor
Chemical compound
reacting calcium hydroxide with sodium bromate or calcium sulfate with barium bromate. Above 180 °C, calcium bromate decomposes to form calcium bromide
Calcium_bromate
Chemical element with atomic number 16 (S)
sphalerite (zinc sulfide), and stibnite (antimony sulfide); and the sulfate minerals, such as gypsum (calcium sulfate), alunite (potassium aluminium sulfate)
Sulfur
Battery with a calcium electrode
intercalation hosts proposed transition metal oxides and sulfides. The study of calcium batteries as well as calcium electro-chemistry continued. Research expanded
Calcium_battery
Chemical compound
most commercial calcium cyanamide is sold as an aqueous solution. Thiourea can be produced by the reaction of hydrogen sulfide with calcium cyanamide in
Calcium_cyanamide
Natural springs that produce water containing minerals
Sulfur springs contained hydrogen sulfide gas (see also fumeroles). Salt (saline) springs contained salts of calcium, magnesium or sodium. Alkaline springs
Mineral_spring
Chemical compound
Calcium magnesium acetate (CMA, with chemical formula C12H18CaMg2O12) is a deicer and can be used as an alternative to road salt. It is approximately
Calcium_magnesium_acetate
Old bottle of Hepar sulph made from calcium sulfide
Evidence and efficacy of homeopathy
Evidence_and_efficacy_of_homeopathy
Chemical compound
removing ("scrubbing") hydrogen sulfide from gas streams. This conversion is achieved by oxidising the hydrogen sulfide to elemental sulfur, which is non-volatile:
Ethylenediaminetetraacetic acid
Ethylenediaminetetraacetic_acid
Outflow of acidic water from metal or coal mines
construction activities, usually within rocks containing an abundance of sulfide minerals. Areas where the earth has been disturbed (e.g. construction sites
Acid_mine_drainage
Chemical compound
Calcium gluconate is the calcium salt of gluconic acid and is used as a mineral supplement and medication. As a medication it is used by injection into
Calcium_gluconate
among them: Mercury(II) Sulfide (HgS), or native Vermilion (the common ore of Mercury). Copper Glance – Copper(I) Sulfide ore. Cuprite – Copper(I) Oxide
List_of_alchemical_substances
Laboratory device for preparing gases
pieces of marble (calcium carbonate) and hydrochloric acid Hydrogen sulfide from iron(II) sulfide and hydrochloric acid Acetylene from calcium carbide and water
Kipp's_apparatus
Russian geologist, meteoriticist, and poet (1879–1945)
several mineral deposits. In 1918, he found a rare variety of oldhamite (calcium sulfide), which was later named dravertinite in his honor. A new mineral, CuMg(SO4)2
Pyotr_Dravert
to convert sulfide minerals to metallic form without sulfur dioxide emissions, capturing sulfur as either calcium sulfide or sodium sulfide. 2001 – Chester
Karl_A._Smith
Use of heat and a reducing agent to extract metal from ore
the ore. Sulfide ores such as those commonly used to obtain copper, zinc, or lead, are roasted before smelting in order to convert the sulfides to oxides
Smelting
Topography from dissolved soluble rocks
reacts with sulfide present in the system (pyrite or hydrogen sulfide) to form sulfuric acid (H2SO4). Sulfuric acid then reacts with calcium carbonate,
Karst
Oldhamite (galena, rocksalt: 1863) 2.CD.10 [52] [53] [54] (IUPAC: calcium sulfide) Oldsite (IMA2021-075) 7.EC. [55] [no] [no] Olekminskite (IMA1989-047)
List of minerals recognized by the International Mineralogical Association (O)
List_of_minerals_recognized_by_the_International_Mineralogical_Association_(O)
Shale oil extraction technology
but it still generates carbon dioxide as also carbon disulfide and calcium sulfide. Enefit process is a modification of the Galoter process being developed
Galoter_process
List of IMA recognized minerals and groupings
Galena PbS, Clausthalite PbSe, Altaite PbTe, Alabandite MnS, Oldhamite (Calcium sulfide) (Ca,Mg,Fe)S, Niningerite (Mg,Fe2+,Mn)S, Borovskite Pd3SbTe4, Crerarite
Classification of non-silicate minerals
Classification_of_non-silicate_minerals
Pigment used in ancient Egypt
Egyptian blue, also known as calcium copper silicate, calcium copper tetrasilicate, or cuprorivaite, is a pigment with the chemical formula CaCuSi4O10
Egyptian_blue
Damage to concrete affecting its mechanical strength and its durability
microorganisms (bacteria, fungi...) Other damaging processes can also involve calcium leaching by water infiltration, physical phenomena initiating cracks formation
Concrete_degradation
Cosmetic preparation used to remove hair from the skin
hydrolyze the hair so that it is easily removed. Formerly, sulfides such as strontium sulfide were used, but due to their unpleasant odor, they have been
Chemical_depilatory
Chemical compound
alternative to the Kraft process that uses hydroxides and sulfides instead of sulfites. Calcium sulfite was used, but has been largely replaced by magnesium
Calcium_sulfite
Igneous rock formed by accumulating crystals from a magma
precipitation of anorthite (a calcium aluminium feldspar) removes calcium from the melt, which becomes more depleted in calcium. Enstatite being precipitated
Cumulate_rock
Branch of extractible metallurgy
electrical heat), the process is said to be "autogenous". Processing of some sulfide ores exploit the exothermicity of their combustion. Calcination is thermal
Pyrometallurgy
Solution used for paper pulping
strongly alkaline solution composed mainly of sodium hydroxide and sodium sulfide. It is used in the first stage of the Kraft process in which lignin and
White_liquor
copper-activated zinc sulfide, used in glow in the dark materials and green CRT phosphors; long afterglow Silver, added to zinc sulfide to produce a phosphor/scintillator
Activator_(phosphor)
Analytical method used to investigate elemental composition of inorganic compounds
sulfide can also serve the purpose. The test with the sulfide ion must be conducted in the presence of dilute HCl. Its purpose is to keep the sulfide
Qualitative inorganic analysis
Qualitative_inorganic_analysis
Iron (II) disulfide mineral
as fool's gold, is an iron sulfide with the chemical formula FeS2 (iron (II) disulfide). Pyrite is the most abundant sulfide mineral. Pyrite's metallic
Pyrite
Type of fossilization
marine sediments saturated with iron sulfides. (Pyrite is iron sulfide.) As organic matter decays it releases sulfide which reacts with dissolved iron in
Permineralization
Chemical reaction combining substances into new compounds
| b) Between compounds | CaO + H2O → Ca(OH)2 | Calcium oxide (lime) combined with water gives calcium hydroxide (slaked lime) |- | c) Between elements
Combination_reaction
Chemical element with atomic number 38 (Sr)
similar to those of its two vertical neighbors in the periodic table, calcium and barium. It occurs naturally mainly in the minerals celestine and strontianite
Strontium
Rapidly setting hydraulic cements
Calcium aluminate cements are cements consisting predominantly of hydraulic calcium aluminates. Alternative names are "aluminous cement", "high-alumina
Calcium_aluminate_cements
Crystalline chemical element or compound formed by geologic processes
solutions such as mackinawite, (Fe, Ni)9S8, which is mostly a ferrous sulfide with a significant fraction of iron atoms replaced by nickel atoms. Other
Mineral
Chinese egg-based culinary dish
color, with a smooth consistency and strong flavor due to the hydrogen sulfide and ammonia present, while the white becomes dark brown in color, with
Century_egg
Substance used to remove dirt or other contaminants
for concrete. Vinegar can also be used to clean hard surfaces and remove calcium deposits. Sulphuric acid is used in acidic drain cleaners to unblock clogged
Cleaning_agent
Chromium-bearing garnet group
collector. It is classified in the ugrandite group alongside the other calcium-bearing garnets andradite and grossular. Uvarovite is the rarest of the
Uvarovite
Decrease in solubility of an ionic substance in solution when a common ion is added
other added chemical have one ion in common with each other. Hydrogen sulfide (H2S) is a weak electrolyte. It is partially ionized when in aqueous solution
Common-ion_effect
In geology, a type of compact mass
Iron sulfide concretions, such as the Kansas Pop rocks, consisting of either pyrite and marcasite, are nonmagnetic. On the other hand, iron sulfide concretions
Concretion
State of steady internal conditions maintained by living things
pH of extracellular fluid, the concentrations of sodium, potassium, and calcium ions, as well as the blood sugar level, and these need to be regulated
Homeostasis
Process for selectively separating of hydrophobic materials from hydrophilic
single most important operation used for the recovery and upgrading of sulfide ores". The development of froth flotation has improved the recovery of
Froth_flotation
Hot springs in Jordan
containing chemical elements and compounds such as sodium, calcium, chloride, radon, hydrogen sulfide, and carbon dioxide. The hot springs emerge from the source
Ma'in_Hot_Springs
Group of chemical elements
group 2 of the periodic table. They are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). The elements have very
Alkaline_earth_metal
Process of converting wood into wood pulp
heated "white liquor"—a mixture that includes sodium hydroxide and sodium sulfide dissolved in water—that breaks the chemical bonds that link the branched
Kraft_process
Device for culturing microorganisms
(containing cellulose), egg-shells (containing calcium carbonate), and a sulfur source such as calcium sulfate or whole blended eggs. Incubating the column
Winogradsky_column
Blue dye also used as a medication
of hydrogen sulfide with dimethyl-p-phenylenediamine and iron(III) at pH 0.4 – 0.7 is used to determine by photometric measurements sulfide concentration
Methylene_blue
Mineral, anhydrous calcium sulfate
Anhydrite, or anhydrous calcium sulfate, is a mineral with the chemical formula CaSO4. It is in the orthorhombic crystal system, with three directions
Anhydrite
Water exposed to hydrogen sulfide gas
water (or sulphur water) is a condition where water is exposed to hydrogen sulfide gas, giving it a distinct "rotten egg" smell. This condition has different
Sulfur_water
Chemical compound of sulfur and oxygen
combustion of hydrogen sulfide and organosulfur compounds proceeds similarly. For example: 2 H2S + 3 O2 → 2 SO2 + 2 H2O The roasting of sulfide ores such as pyrite
Sulfur_dioxide
Chemical compound
Trimebutine thiocarbamoylbenzoate – thioamide group acts as a hydrogen sulfide donor, also acting as an anti-inflammatory and analgesic agent Trimebutine
Trimebutine
Hardened body part
use of the term in paleontology is to describe hollow calcium carbonate, calcium sulfate or calcium phosphate plates grown as body armor by a number of
Sclerite
Chemical element with atomic number 51 (Sb)
grey metal or metalloid, it occurs in nature mainly in the form of the sulfide mineral stibnite (Sb2S3). Antimony compounds have been known since ancient
Antimony
Drug or agent applied to the skin to control seborrhea or seborrheic dermatitis
Anti-seborrheics are drugs effective in seborrheic dermatitis. Selenium sulfide, zinc pyrithione, corticosteroids, imidazole antifungals, and salicylic
Anti-seborrheic
Corrosion on outer layer of some metals
sole effects of oxygen in the air. For example, silver needs hydrogen sulfide to tarnish, although it may tarnish with oxygen over time. It often appears
Tarnish
Chemical compound (H2SO4)
oxides and water). Sulfuric acid is formed naturally by the oxidation of sulfide minerals, such as pyrite: 2 FeS2(s) + 7 O2 + 2 H2O → 2 Fe2+ + 4 SO2−4 +
Sulfuric_acid
Mixture of selenium sulfides
Selenium disulfide, also known as selenium sulfide, is a chemical compound and medication used to treat seborrheic dermatitis, dandruff, and pityriasis
Selenium_disulfide
Corrosion caused or promoted by microorganisms
environmental factors. Some sulfate-reducing bacteria produce hydrogen sulfide, which can cause sulfide stress cracking. Acidithiobacillus bacteria produce sulfuric
Microbial_corrosion
Chemical compound
Zeise in 1834. Zeise treated calcium ethyl sulfate with a suspension of barium sulfide saturated with hydrogen sulfide. He is credited with naming the
Ethanethiol
Fissure in a planet's surface from which heated water emits
latter uses iron sulfides (pyrite and greigite) for the structure of its dermal sclerites (hardened body parts), instead of calcium carbonate. The extreme
Hydrothermal_vent
Molecule used for pharmaceutical treatment of skin conditions
Precipitated sulfur (sulfur praecipitatum) is prepared by boiling sulfur and calcium oxide in water and then precipitating with hydrochloric acid. It, too,
Sulfur_in_pharmacy
Steelmaking method
added to reduce sulfur impurities to magnesium sulfide in a violent exothermic reaction. The sulfide is then raked off. Similar pretreatments are possible
Basic_oxygen_steelmaking
Mineral group, calcium phosphate
(bromoapatites), iodide (iodoapatites), sulfide (sulfoapatites), and selenide (selenoapatites). Evidence for natural sulfide substitution has been found in lunar
Apatite
Byproducts from the production of wood pulp
first step involves heating lignosulfonates with sulfides or elemental sulfur to produce dimethyl sulfide. The methyl groups come from methyl ethers present
Lignosulfonates
Chemical reaction adding water to a mineral's crystal structure
calcium carbonate hydroxylated minerals saponite talc hydroxysulfides (mixed sulfides-hydroxides) tochilinite, a hydroxysulfide or hydrated sulfide mineral
Mineral_hydration
Chemical element with atomic number 56 (Ba)
It is then reduced by carbon to barium sulfide: BaSO4 + 2 C → BaS + 2 CO2 The water-soluble barium sulfide is the starting point for other compounds:
Barium
Cascade of intracellular and molecular events for transmission/amplification of signals
particular calcium channels in the endoplasmic reticulum (ER). These channels are specific to calcium and allow the passage of only calcium to move through
Signal_transduction
Family of transport proteins
PMID 28155571. Sitdikova GF, Weiger TM, Hermann A (Feb 2010). "Hydrogen sulfide increases calcium-activated potassium (BK) channel activity of rat pituitary tumor
BK_channel
CALCIUM SULFIDE
CALCIUM SULFIDE
Surname or Lastname
English (of Norman origin)
English (of Norman origin) : habitational name from places in Eure and Seine-Maritime, France, called Cailly, from a Romano-Gallic personal name Callius + the locative suffix -acum.English : habitational name from a minor place called Caley in the parish of Winwick, Lancashire, named with Old English cÄ â€˜jackdaw’ + lÄ“ah ‘woodland clearing’.Irish : reduced and altered form of McCauley.Manx : variant of Callow.
Girl/Female
Latin
Mother of Cycnus.
Male
Scottish
Variant spelling of Scottish Calum, CALLUM means "dove."
Boy/Male
American, Australian, Chinese, Christian, Gaelic, Latin, Scottish
Dove; Similar to Malcolm; Servant or Disciple of Columba; Bald Dove
Boy/Male
Australian, British, Celtic, English, Latin
Dove
Male
Scottish
Scottish form of Latin Columba, CALUM means "dove."
Boy/Male
Scottish
Son of Callum.
Boy/Male
Gaelic Irish Scottish
Dove. Can also be a 'Servant/disciple of Columba'.
Boy/Male
Arthurian Legend
Various names for Arthur's sword.
Surname or Lastname
English
English : occupational name from Old French aillier ‘garlic seller’, from ail ‘garlic’ (from Latin allium).Americanized spelling of German Ehler or Öhler (see Ohler).
Boy/Male
Irish Celtic Gaelic
a Latin name meaning dove.
CALCIUM SULFIDE
CALCIUM SULFIDE
CALCIUM SULFIDE
CALCIUM SULFIDE
CALCIUM SULFIDE
CALCIUM SULFIDE
CALCIUM SULFIDE