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Chemical compound
Calcium carbonate is a chemical compound with the chemical formula CaCO3. It is a common substance found in rocks as the minerals calcite and aragonite
Calcium_carbonate
Dietary mineral supplement
of calcium include calcium chloride and calcium gluconate. The forms that are taken by mouth include calcium acetate, calcium carbonate, calcium citrate
Calcium_supplement
Salt or ester of carbonic acid
dolomite, a calcium-magnesium carbonate CaMg(CO3)2; and siderite, or iron(II) carbonate, FeCO3, an important iron ore. Sodium carbonate ("soda" or "natron")
Carbonate
Chemical compound existing only in aqueous solution (Ca(HCO3)2)
compound; it exists only in aqueous solution containing calcium (Ca2+), bicarbonate (HCO− 3), and carbonate (CO2− 3) ions, together with dissolved carbon dioxide
Calcium_bicarbonate
Non-crystalline CaCO3
Amorphous calcium carbonate (ACC) is the amorphous and least stable polymorph of calcium carbonate. ACC is extremely unstable under normal conditions and
Amorphous_calcium_carbonate
Shell formation mechanism
Marine biogenic calcification is the production of calcium carbonate by organisms in the global ocean. Marine biogenic calcification is the biologically
Marine_biogenic_calcification
Type of sedimentary rock
crystal forms of calcium carbonate CaCO3. Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place
Limestone
Depth in the oceans below which no calcium carbonate sediment particles are preserved
The carbonate compensation depth (CCD) is the depth, in the oceans, at which the rate of supply of calcium carbonates matches the rate of solvation. That
Carbonate_compensation_depth
Chemical element with atomic number 20 (Ca)
abundant metal, after iron and aluminium. The most common calcium compound on Earth is calcium carbonate, found in limestone and the fossils of early sea life;
Calcium
Water that has a high mineral content
of limestone, chalk or gypsum, which are largely made up of calcium and magnesium carbonates, bicarbonates and sulfates. Drinking hard water may have moderate
Hard_water
Chemical compound
mixtures of sodium carbonate, calcium carbonate, and silica sand (silicon dioxide (SiO2)). When these materials are heated, the carbonates release carbon
Sodium_carbonate
Form of limestone deposited by mineral springs
rusty varieties. It is formed by a process of rapid precipitation of calcium carbonate, often at the mouth of a hot spring or in a limestone cave. In the
Travertine
Zone of the open ocean
associated with some forms of phytoplankton, such as biogenic silica and calcium carbonate "ballast" resulting in more rapid transport to deeper depth. A majority
Bathypelagic_zone
Transfer of calcium between dissolved and solid phases
soils. Calcium ions are consumed and removed from aqueous environments as they react to form insoluble structures such as calcium carbonate and calcium silicate
Calcium_cycle
Chemical compound
stomach acid.[better source needed] Calcium carbonate is harder to digest than calcium citrate, and calcium carbonate carries a risk of "acid rebound" (the
Calcium_citrate
Hard, chalky deposit of calcium carbonate
Limescale is a hard, chalky deposit, consisting mainly of calcium carbonate (CaCO3). It often builds up inside kettles, boilers, and pipework, especially
Limescale
Chemical compound of calcium
broadly used term lime connotes calcium-containing inorganic compounds, in which carbonates, oxides, and hydroxides of calcium, silicon, magnesium, aluminium
Calcium_oxide
Calcium carbonate mineral
Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (CaCO3). It is a very common mineral, particularly as a component of
Calcite
Soft carbonate rock
driveways, are primarily made of gypsum rather than calcium carbonate chalk. Magnesium carbonate chalk is commonly used as a drying agent to obtain better
Chalk
Class of sedimentary rock
the most common carbonate rock and is a sedimentary rock made of calcium carbonate with two main polymorphs: calcite and aragonite. While the chemical
Carbonate_rock
Hard object produced within a living shelled mollusc
mollusk. Just like the shell of a mollusk, a pearl is composed of calcium carbonate (mainly aragonite or a mixture of aragonite and calcite) in minute
Pearl
Adjective meaning mostly or partly composed of calcium carbonate
(/kælˈkɛəriəs/) is an adjective meaning "mostly or partly composed of calcium carbonate", in other words, containing lime or being chalky. The term is used
Calcareous
Construction material
(SRB) such as Desulfovibrio desulfuricans. Calcium carbonate nucleation depends on four major factors: Calcium concentration DIC concentration pH levels
Living_building_material
Calcium oxides and/or hydroxides
calcium oxides and hydroxides. It is also the name for calcium oxide which is used as an industrial mineral and is made by heating calcium carbonate in
Lime_(material)
Lime-rich mud or mudstone which contains variable amounts of clays and silt
mixture of clay and calcium carbonate, formed under freshwater conditions. These typically contain 35–65% clay and 65–35% carbonate. The term is today
Marl
Decrease of pH levels in the ocean
mollusks and corals, are especially vulnerable because they rely on calcium carbonate to build shells and skeletons. A change in pH by 0.1 represents a
Ocean_acidification
Soil additive containing calcium carbonate and other ingredients
primary active component is calcium carbonate. Additional chemicals vary depending on the mineral source and may include calcium oxide. Unlike the types of
Agricultural_lime
Animals of the phylum Porifera
or both, and some species have calcium carbonate exoskeletons. Calcareous sponges (calcereans) have calcium carbonate spicules typically in high-magnesium
Sponge
Process by which living organisms produce minerals
silicates in algae, diatoms and sponges, carbonates in invertebrates, and calcium phosphates and carbonates in vertebrates. These minerals often form
Biomineralization
Hard, protective outer layers created by an animal that lives in the sea
invertebrate (an animal without a backbone), and is typically composed of calcium carbonate or chitin. Most shells that are found on beaches are the shells of
Seashell
Particles added to improve its properties
needs. The top filler materials used are ground calcium carbonate (GCC), precipitated calcium carbonate (PCC), kaolin, talc, and carbon black. Filler materials
Filler_(materials)
Measure of water hardness
(dKH) (from the German "Karbonathärte"), or in parts per million calcium carbonate ( ppm CaCO 3 or grams CaCO 3 per litre|mg/L). One dKH is equal to
Carbonate_hardness
Capacity of water to resist changes in pH that would make the water more acidic
(microequivalents per kilogram), or mg/L CaCO3 (milligrams per liter of calcium carbonate). Each of these measurements corresponds to an amount of acid added
Alkalinity
Brand of household cleaning product
water.[citation needed] Calcium deposits, primarily composed of calcium carbonate (CaCO3), react with weak acids to form calcium salts that are soluble
Calcium_Lime_Rust
Polyatomic anion
sink in the carbon cycle. Some plants like Chara utilize carbonate and produce calcium carbonate (CaCO3) as a result of biological metabolism. In freshwater
Bicarbonate
Chemical compound naturally occurring as the mineral larnite
very stable calcium silicate and releasing volatile (at high temperatures) magnesium metal. Via the carbonate–silicate cycle, carbonate rocks convert
Calcium_silicate
Carbonate mineral (CaMg(CO3)2)
anhydrous carbonate mineral composed of calcium magnesium carbonate, ideally CaMg(CO3)2. The term is also used for a sedimentary carbonate rock composed
Dolomite_(mineral)
Former industrial process for producing sodium carbonate from salt
followed by reacting the sodium sulfate with coal and calcium carbonate to make sodium carbonate. The process gradually became obsolete after the development
Leblanc_process
Catalyst enabling the hydrogenation of alkynes to alkenes
heterogeneous catalyst consisting of palladium deposited on calcium carbonate (CaCO3) or barium carbonate (BaCO3) then poisoned with various forms of lead or
Lindlar_catalyst
Marine invertebrates of the subphylum Anthozoa
important reef builders that inhabit tropical oceans and secrete calcium carbonate to form a hard skeleton. A coral "group" is a colony of very many
Coral
Calcium carbonate mineral
Aragonite is a carbonate mineral and one of the three most common naturally occurring crystal forms of calcium carbonate (CaCO3), the others being calcite
Aragonite
Ocean/atmosphere carbon exchange process
also excrete calcium carbonate during osmoregulation. Some of the inorganic carbon species in the ocean, such as bicarbonate and carbonate, are major contributors
Oceanic_carbon_cycle
External skeleton of an organism
musculature. Arthropod exoskeletons contain chitin; the addition of calcium carbonate makes them harder and stronger, at the price of increased weight.
Exoskeleton
Bio-geochemical process
Microbiologically induced calcium carbonate precipitation (MICP) is a bio-geochemical process that induces calcium carbonate precipitation within the soil
Microbiologically induced calcite precipitation
Microbiologically_induced_calcite_precipitation
Hydraulic binder used in the composition of mortar and concrete
object of research. First, the limestone (calcium carbonate) is burned to remove its carbon, producing lime (calcium oxide) in what is known as a calcination
Cement
Inorganic compound of formula Ca(OH)2
To clear a brine of carbonates of calcium and magnesium in the manufacture of salt for food and pharmaceutical uses As a calcium supplement in fruit drinks
Calcium_hydroxide
Unicellular algae responsible for the formation of chalk
productive calcifying organisms on the planet, covering themselves with a calcium carbonate shell called a coccosphere. It is formed when a cell arrange a series
Coccolithophore
Process in petroleum processing
assurance in the oil and gas industry. Examples of oilfield scales are calcium carbonate (limescale), iron sulfides, barium sulfate and strontium sulfate.
Oilfield_scale_inhibition
Damage to concrete affecting its mechanical strength and its durability
strength increases due to its porosity decrease by the precipitation of calcium carbonate (calcite, CaCO3). In the absence of steel reinforcement bars and without
Concrete_degradation
Carbon capture process in oceans
well as the cycling of calcium carbonate (CaCO3) formed into shells by certain organisms such as plankton and mollusks (carbonate pump). Budget calculations
Biological_pump
In geology, a type of compact mass
microns in diameter) and a soap of calcium fatty acids salts. The conversion of these fatty acids to calcium carbonate may have promoted shrinkage and fracture
Concretion
Waterfall in Mexican state of Oaxaca
created by fresh water springs, whose water is over-saturated with calcium carbonate and other minerals. As the water trickles over the cliffs, the excess
Hierve_el_Agua
Inner-ear structure in vertebrates which detects acceleration
a stone), also called otoconium, statolith, or statoconium, is a calcium carbonate structure in the saccule or utricle of the inner ear, specifically
Otolith
Calcium carbonate based concretion of sediment
Caliche (/kəˈliːtʃiː/) is a soil accumulation of soluble calcium carbonate at depth, where it precipitates and binds other materials—such as gravel, sand
Caliche
Chemical compound
pregnancy and breastfeeding. Calcium gluconate is made by mixing gluconic acid with calcium carbonate or calcium hydroxide. Calcium gluconate came into medical
Calcium_gluconate
Protective exterior of an egg
mainly calcium carbonate, bird eggshells dissolve in various acids, including the vinegar used in cooking. While dissolving, the calcium carbonate in an
Eggshell
Accumulated material on seafloor
so calcium carbonate readily dissolves at all depths, and carbonate sediments do not accumulate. In temperate and tropical regions calcium carbonate dissolves
Marine_sediment
or carbonate hardness. Carbonate hardness is a measure of the concentration of carbonates such as calcium carbonate (CaCO3) and magnesium carbonate (MgCO3)
DKH
Chemical, compound of iron carbon and oxygen
cations Fe2+ and carbonate anions CO2− 3. The compound crystallizes in the same motif as calcium carbonate. In this motif, the carbonate dianion is nearly
Iron(II)_carbonate
Carbon dioxide capture technology
reason, calcium looping is also known as carbonate looping. In the calcium looping process, the two species are calcium carbonate (CaCO3) and calcium oxide
Calcium_looping
Type of metamorphic rock
intense pressure and heat of the metamorphism. Acids react with the calcium carbonate in marble, producing carbonic acid (which decomposes quickly to CO2
Marble
Hard shell of some spherical marine animals
The test is a skeletal structure, made of hard material such as calcium carbonate, silica, chitin or composite materials. As such, it allows the protection
Test_(biology)
Topography from dissolved soluble rocks
CaCO3 + 2 H3O+ → Ca2+ + H2CO3 + 2 H2O (calcium carbonate dissolution) Ca2+ + SO2−4 → CaSO4 (formation of calcium sulfate) CaSO4 + 2 H2O → [CaSO4·2H2O]
Karst
Chemical compound
zinc carbonate (Zn5(CO3)2(OH)6). Zinc carbonate adopts the same structure as calcite (calcium carbonate). Zinc is octahedral and each carbonate is bonded
Zinc_carbonate
Type of wetland fed by mineral-rich ground or surface water
that are rich in calcium, such as limestone. When groundwater flows past calcareous (calcium-rich) rocks like limestone (calcium carbonate), a small amount
Fen
Alkaline lake rich in calcium carbonate
that they deposit sediments rich in calcium carbonate. More precisely, a marl lake is a lake in which calcium carbonate makes up at least 50% of the dry
Marl_lake
Exoskeleton of an animal in the phylum Mollusca
monoplacophora. This organic framework controls the formation of calcium carbonate crystals (never phosphate, with the questionable exception of Cobcrephora)
Mollusc_shell
Component of chewing and bubble gum
antacid use calcium carbonate as a filler, while gum bases for acid flavored gum use talc as a filler, since acids can react with calcium carbonate to produce
Gum_base
Natural site in Denizli Province in southwestern Turkey
supersaturated with calcium carbonate, reaches the surface, carbon dioxide de-gasses from it, and calcium carbonate is deposited. Calcium carbonate is deposited
Pamukkale
Elongated mineral formation hanging down from a cave ceiling
of calcium carbonate and other minerals, which is precipitated from mineralized water solutions. Limestone is the chief form of calcium carbonate rock
Stalactite
Part of arthropods
for rigidity or elasticity. Typically the mineral crystals, mainly calcium carbonate, are deposited among the chitin and protein molecules in a process
Arthropod_exoskeleton
Elongate mineral formation found on a cave floor
of calcium carbonate and other minerals, which is precipitated from mineralized water solutions. Limestone is the chief form of calcium carbonate rock
Stalagmite
Chemical compound
Potassium carbonate is the inorganic compound with the formula K2CO3. It is a white salt, which is soluble in water and forms a strongly alkaline solution
Potassium_carbonate
Reaction of calcium hydroxide with CO2 to form calcium carbonate
Carbonatation is a chemical reaction in which calcium hydroxide reacts with carbon dioxide and forms insoluble calcium carbonate: Ca ( OH ) 2 + CO 2 ⟶ CaCO 3 + H 2
Carbonatation
Medication used to reduce the absorption of phosphate
magnesium, aluminium, calcium, or lanthanum salts) that react with phosphate and form an insoluble compound. Calcium carbonate Calcium-based phosphate binders
Phosphate_binder
carbon. Most PIC is calcium carbonate, CaCO3, particularly in the form of calcite, but also in the form of aragonite. Calcium carbonate makes up the shells
Particulate_inorganic_carbon
Reusable writing surface
surface on which text or drawings are made with sticks of calcium sulphate or calcium carbonate, better known as chalk. Blackboards were originally made
Blackboard
Durable paper-like material made from calcium carbonate and polyethylene
paper, are strong and durable paper-like materials manufactured from calcium carbonate bonded with high-density polyethylene (HDPE) resin. They are used
Stone_paper
Calcium salt of oxalic acid
oxidised by bacteria, fungi, or wildfire to produce the soil nutrient calcium carbonate. The poisonous plant dumb cane (Dieffenbachia) contains the substance
Calcium_oxalate
Manufacturing process
is to remove carbon and oxygen from limestone (calcium carbonate) through applying heat to yield calcium oxide (quicklime). This calcination reaction (which
Calcination
Structure formed in a cave by the deposition of minerals from water
calcareous, composed of calcium carbonate (CaCO3) minerals (calcite or aragonite). Less commonly, speleothems are made of calcium sulfate (gypsum or mirabilite)
Speleothem
Small geothermal geyser in Nevada, United States
point was found, the well was abandoned, and a 10–12-foot (3.0–3.7 m) calcium carbonate cone formed. In 1964, a geothermal energy company drilled a second
Fly_Geyser
Calcium-storing organelle in muscle cells
cellular changes (the calcium is said to be a second messenger). Calcium is used to make calcium carbonate (found in chalk) and calcium phosphate, two compounds
Sarcoplasmic_reticulum
Carbon-oxygen gas
commonly used in calcium reactors to temporarily lower the pH of water being passed over calcium carbonate in order to allow the calcium carbonate to dissolve
Carbon_dioxide
Chemical compound
Barium carbonate is the inorganic compound with the formula BaCO3. Like most alkaline earth metal carbonates, it is a white salt that is poorly soluble
Barium_carbonate
Chemical compound
Japanese Pharmacopoeia Calcium acetate/magnesium carbonate Upsalite, a reported amorphous form of magnesium carbonate "Magnesium carbonate". Bénézeth, Pascale;
Magnesium_carbonate
Substance used to remove dirt or other contaminants
particle size. Particles are usually smaller than 0.05 mm. Pumice, calcium carbonate (limestone, chalk, dolomite), kaolinite, quartz, soapstone or talc
Cleaning_agent
Chemical compound of formula CaS
sodium carbonate. In that process sodium sulfide reacts with calcium carbonate: Na2S + CaCO3 → CaS + Na2CO3 Millions of tons of this calcium sulfide
Calcium_sulfide
Sedimentary rock made of large grains, usually of calcium carbonate
rock made of pisoids, which are concretionary grains – typically of calcium carbonate which resemble ooids, but are more than 2 mm in diameter. These grains
Pisolite
Chemical used as leavening agent and smelling salt
prepared by the sublimation of a mixture of ammonium sulfate and calcium carbonate and occurs as a white powder or a hard, white or translucent mass
Ammonium_carbonate
Maneuver used by medical professionals to treat one common cause of vertigo
works by allowing free-floating particles, namely displaced otoconia (calcium carbonate structures), from the affected semicircular canal to be relocated
Epley_maneuver
Chemical derived from gypsum used in food and industry
24497 – Calcium Sulfate". PubChem. Titus, Harry W.; McNally, Edmund; Hilberg, Frank C. (1933-01-01). "Effect of Calcium Carbonate and Calcium Sulphate
Calcium_sulfate
Species of ant
area. The caps are approximately 60% calcium carbonate that is transported from the underlying calcium carbonate layers, and protect the nest structure
Pogonomyrmex_maricopa
Suspension of fine-grained calcium carbonate particles in water bodies
is a phenomenon that occurs when a suspended cloud of fine-grained calcium carbonate precipitates in water bodies, typically during summer months, as a
Whiting_event
Geochemical transformation of silicate rocks
marine calcification releases one molecule back to the atmosphere. The calcium carbonate (CaCO3) contained in shells and skeletons sinks after the marine organism
Carbonate–silicate_cycle
Class of crustaceans
made of chitin, and often calcium carbonate. The family Entocytheridae and many planktonic forms do not have calcium carbonate. The hinge of the two valves
Ostracod
Phylum of invertebrates with jointed exoskeletons
exoskeleton with a cuticle made of chitin, often mineralised with calcium carbonate, a body with differentiated (metameric) segments, and paired jointed
Arthropod
Substance that relieves stomach problems
salts of aluminium, calcium, magnesium, or sodium. Some preparations contain a combination of two salts, such as magnesium carbonate and aluminium hydroxide
Antacid
Chemical conditions of the sea favouring aragonite deposition
contains aragonite and high-magnesium calcite as the primary inorganic calcium carbonate precipitates. The reason lies in the highly hydrated Mg2+ divalent
Aragonite_sea
Lake in Yukon, Canada
marl, a mixture of clay and calcium carbonate, at the bottom of the shallow waters. The high concentration of calcium carbonate in the water here comes from
Emerald_Lake_(Yukon)
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