How To Use Calcium carbonate In A Sentence
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The B horizon may be colored by oxides of iron and aluminum or by calcium carbonate illuviated from the A horizon.
Soil
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The researchers were therefore surprised to discover that foraminiferan tests sampled from the Challenger Deep contained calcareous components, including the dissolved remnants of coccoliths, the calcium carbonate plates of tiny algae called coccolithophores, and planktonic foraminiferan test fragments.
Innovations-report
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The monthly settling particulate samples provide a data set of seasonal and interannual export fluxes of organic carbon, biogenic opal, calcium carbonate, and lithogenic material.
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The secret is using magnesium oxides instead of calcium carbonates, the main ingredient in Portland cement, the most common type.
The Winners, Category by Category
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Pearls are composed partly of the mineral substance calcium carbonate (chemically the same as marble) and partly of a tough, horny substance of organic nature called conchiolin.
A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public
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Fresh calcium carbonate growth solutions were prepared each day and stored in sealed containers.
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Chemically, chalk is largely calcium carbonate, he argues, and so should yield carbon dioxide if immersed in an acid.
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Softies Leather corals lack the hard calcium carbonate skeleton of stony corals.
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Though most scientists believed that corals were programmed to produce only the aragonitic form of calcium carbonate, he said, the team’s work reveals that corals are far more flexible and able to vary at least a portion of their skeleton to growth favored by seawater chemistry.
Thompson: "Remarkably Similar" « Climate Audit
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It's an otherworldly site, fringed with dunes and studded with bone-white calcium carbonate spires called tufa towers.
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Sponges have an internal skeleton composed of needle-like elements called spicules, which can be composed of calcium carbonate, opaline silica, or fibres of the scleroprotein spongin.
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Oriental alabaster, the alabastrites of the classical writers, is a translucent marble (calcium carbonate) obtained from stalagmitic deposits; because of its usually banded structure, which gives it some resemblance to onyx, it is also called onyx marble, or simply, though incorrectly, onyx.
The Catholic Encyclopedia, Volume 1: Aachen-Assize
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The sirupy liquid thus obtained is then mixed with 80 to 100 grammes of pulverized calcium carbonate (calcspar), dried for fifteen minutes at 40 to 60° C., and after standing for one to two hours the dish and its contents are weighed.
Scientific American Supplement, No. 315, January 14, 1882
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Otoliths consist of calcium carbonate, mainly in the form of aragonite, and organic matter called otoline.
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However, algae that secrete calcium carbonate, such as coralline red algae and an abundant calcifying green alga known as Halimeda, are almost always significant contributors as well.
Coral reef
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The application of an active nano - calcium carbonate in tire was experimentally investigated.
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When calcium carbonate is heated it decomposes into calcium oxide and carbon dioxide.
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Calcareous soils are freely drained soils containing free calcium carbonate within the profile.
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It will dissolve to some extent in water containing carbon dioxide, just as will calcium carbonate, and waters containing it are called chalybeate waters.
An Elementary Study of Chemistry
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The hard component was often formed from calcium carbonate, as found in shellfish, but other durable defences were provided by chitin (a complex carbohydrate) in crustaceans and insects.
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This beach is famous for its "star-sand," made up of tiny sea animals called foraminifera, which are formed from single-celled protozoa that produce calcium carbonate shells.
Breathtaking Beaches © Corbis Cleopatra's Beach Sedir...
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The main raw material that is a compound of polyester resin mixed with calcium carbonate is caste in silicone rubber which helps in giving it an unyielding structure.
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Along the shoreline, pinnacles of calcium carbonate deposits, called tufa, glare white in the sunlight.
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Stony coral skeleton of a goblet, the body that surround the Hydra, its composition almost solely for calcium carbonate.
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Inorganic materials such as glass, talc, mica, and calcium carbonate are additives and fillers currently used in plastics for, say, the auto industry, and add significant weight to parts.
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Both groups received cholecalciferol and calcium carbonate oral supplementation.
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The vertical miler mills applied to producing non-metallic minerals such as ground calcium carbonate, barite, pyrophyllite and others were discussed.
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Liars' budget and drawings on Paulson stadium deal (Jack Bog's Blog)
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Siliciclastic sediment is supplemented by skeletal debris of biological origin or by biochemically extracted calcium carbonate.
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But about half of the CO2 from cement cannot be eliminated - it is produced in the reaction, called calcination, that occurs as the limestone (which consists of calcium carbonate) is being burned.
Peak Energy
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Porous, relatively soft, fine-textured and somewhat friable, chalk normally is white and consists almost wholly of calcium carbonate as the common mineral calcite.
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Particulate fillers like talc or ground calcium carbonate generally increase stiffness, while plasticizers enhance flexibility.
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Most of the anuran saccular volume is filled with a viscous suspension of calcium carbonate crystals.
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Administer several vials of 10% aqueous calcium gluconate orally. (Calcium carbonate, Maalox, Mylanta or Milk of Magnesia may also be used.
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In alkaline soils of arid and semiarid areas a white, nonporous layer composed mainly of calcium carbonate and known as caliche, can form in this horizon, and if it is too close to the surface it may cause problems with root growth and drainage (Box 9.3).
5. How plants live and grow
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Calcium carbonate exists as whole mountain ranges of chalk, limestone, and marble.
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As the time for the moult approaches, the animal absorbs much of the calcium carbonate from its shell into its blood.
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All original paints used on plaster on the building's interior, including and especially the decorative painting, were calcimines - water-based, glue-bound, calcium carbonate paints.
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This combination of calcium carbonate and conchiolin is called nacre or mother-of-pearl.
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I am also aware that speleothems are rarely pure calcium carbonate, but often contain large amounts of impurities such as soil or clay particles or surface organic material.
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It, together with calcium carbonate, or the chalk of limestone deposits, is what makes water ‘hard’ and furs up the kettle.
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In more arid areas calcrete (consisting of calcium carbonate) is the duricrust.
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The earthy matter is composed chiefly of calcium phosphate, about 58 per cent. of the weight of the bone, calcium carbonate about 7 per cent., calcium fluoride and magnesium phosphate from 1 to 2 per cent. each and sodium chloride less than 1 per cent.; they confer on bone its hardness and rigidity, while the animal matter (ossein) determines its tenacity.
II. Osteology. 2. Bone
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The sirupy liquid thus obtained is then mixed with 80 to 100 grammes of pulverized calcium carbonate (calcspar), dried for fifteen minutes at 40 to 60° C., and after standing for one to two hours the dish and its contents are weighed.
Scientific American Supplement, No. 315, January 14, 1882
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So are corals and shellfish, which make calcium carbonates that end up in the bottoms of oceans.
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Corals consist of an extremely thin layer of living tissue (often less than a millimeter thick) over a rock-like skeleton of calcium carbonate.
Disease-Hunting Scientist: Dr. Laurie Richardson and black-band disease in coral
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Rising carbon dioxide levels acidify the ocean, which has a particularly devastating effect on organisms that have calcium carbonate shells, like Foraminifera.
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Secretions become viscous and inspissated (ie, glutinous and thickened by evaporation or absorption), and calcium carbonate precipitates, which results in ductal stone formation.
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Calcium carbonate and calcium pyrophosphate are ingredients in toothpaste.
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Arthropods have a stiff cuticle made largely of chitin and proteins, forming an exoskeleton that may or may not be further stiffened with calcium carbonate.
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It's an otherworldly site, fringed with dunes and studded with bone-white calcium carbonate spires called tufa towers.
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Coral's hard parts are composed of aragonite, a form of calcium carbonate.
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The nacre, or mother of pearl, is the innermost layer, which is composed of thin, alternating, laminae (flakes or sheets) of calcium carbonate and an organic material.
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By studying their calcium carbonate shells, it is possible to determine temperature, salinity and other barometers of the time, she said.
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Their roots will penetrate cracks in the rock and produce an organic acid that dissolves calcium carbonate.
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Calcite, or calcium carbonate, is the main constituent of limestone and of cave formations such as stalagmites and stalactites.
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Each individual, or zooid, is enclosed in a sheath of tissue, the zooecium, that in many species secretes a rigid skeleton of calcium carbonate.
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Because of their ability to secrete calcium carbonate, calcareous red algae have a better Phanerozoic fossil record than many other groups of algal protists.
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However, algae that secrete calcium carbonate, such as coralline red algae and an abundant calcifying green alga known as Halimeda, are almost always significant contributors as well.
Coral reef
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Micro - analysis demonstrated Al ( OH ) 3 crystal coating on the calcium carbonate whisker well.
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Some spicules are formed of the mineralized substances calcium carbonate and silica, while others are made of an organic substance called spongin.
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All were so-called tufa towers, formations of calcium carbonate deposited by the mineral-rich lake water, which is two and a half times saltier than seawater and eighty times more alkaline.
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Mollusc shells are made primarily of calcium carbonate, with traces of strontium and other elements.
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Sugar-factory lime is very finely ground calcium carbonate used in the production of sugar from beets.
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Jet is black and shiny when polished, and was sometimes inlaid with tin, calcium carbonate or orpiment, a yellow mineral imported from France and Germany.
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He concluded that the pseudomorphs were derived when rainwater penetrating the near-surface layers leached out the sodium carbonate from the original shortite, leaving behind calcium carbonate.
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A method called scrubbing is used to chemically remove the acidic sulfur dioxide by putting it into contact with calcium carbonate which is a base.
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The result is the formation of solid structures of a porous calcium carbonate rock also known as travertine.
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Oceans Shallow ocean waters (euphotic zone) contain a greater concentration of organisms than the rest of the sea Phytoplankton (algae) is food not only for zooplankton (protozoans and microscopic animals) but also for small fishes Coral reefs - areas of biological abundance just below the surface in shallow, warm, tropical waters Chief constituents are stony corals, animals that have a calcium carbonate (limestone) exoskeleton, and calcareous red and green algae Most of the ocean lies within the pelagic zone Epipelagic zone lacks the inorganic nutrients of shallow waters, and therefore it does not have as high a concentration of phytoplankton Animals in the deeper waters of the mesopelagic zone are carnivores, which are adapted to the absence of light, Waters of the bathypelagic zone are in complete darkness except for an occasional flash of bioluminescent light Abyssal plain - many invertebrates survive there by feeding on debris floating down from the mesopelagic zone
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The heat and/or pressure experienced during metamorphism causes the calcium carbonate to recrystallize into a tightly interlocking mass of calcite crystals.
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The dissolution of calcium carbonate provides only temporary storage of carbon dioxide.
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I personally don’t like terms used in the report such as…’Though most scientists believed that corals were programmed to produce only the aragonitic form of calcium carbonate, he said, the team’s work reveals that corals are far more flexible and able to vary at least a portion of their skeleton to growth favored by seawater chemistry.’
Thompson: "Remarkably Similar" « Climate Audit
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This sets up a chemical reaction which turns the gas into nitric acid and the nitric acid is neutralised by calcium carbonate which is also suspended in the paint.
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Interestingly, not all "pearls" are made of nacre, that combination of aragonite (calcium carbonate and conchiolin that is secreted from a mollusk and layered together to form what gemologists call a "nacreous" pearl.
Gizmag Emerging Technology Magazine
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The gypsum neutralises the alkalinity of nitrifying solutions by converting the alkaline ammonium carbonate into neutral ammonium sulphate, the calcium carbonate being precipitated.
Manures and the principles of manuring
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The resulting calcium carbonate is quite insoluble in water and sinks to the bottom.
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Like the bicarbonate in blood, calcium carbonate helps return environmental pH to closer-to-normal levels by neutralizing the excessive acid in the water and soil.
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Instead of utilizing combinations of isolated stand-alone inorganic rock, bone, or shell forms of minerals (calcium carbonate, calcium phosphate, and so on) or their laboratory-synthesized (chelated) versions, I recommend that we substitute pristine whole-plant forms of calcium, along with other mineral cofactors and indigenous naturally occurring phytocompounds.
Forever Young
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For example, there may have been some as-yet-unknown condition that made the rates of dissolution of calcium carbonate shells in glacial ages and now different.
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The effects of solidified agent, nanometer silicon dioxide powder and calcium carbonate powder on line contraction percentage of silicon rubber mould were discussed in this paper.
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Calcium carbonate textured the walls like coral, and stalactites hung from the ceiling like lone fangs.
MINUTES TO BURN
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Liars' budget and drawings on Paulson stadium deal (Jack Bog's Blog)
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Supplements containing calcium citrate or calcium malate are more easily absorbed than those containing calcium carbonate.
Times, Sunday Times
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All patients received 800 IU of cholecalciferol and 1,000 mg of calcium carbonate.
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Chemically, chalk is largely calcium carbonate, he argues, and so should yield carbon dioxide if immersed in an acid.
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Grossly speaking," writes Burnett, the otolithic organs consist of "a bunch of tiny pebbles (of the white rock known as calcium carbonate) embedded in a gooey wad that sits atop a carpet of delicate hairs.
Boing Boing
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On our current trajectory, the pH will continue to decline past the point where corals and the algae species known as zooxanthellae that live symbiotically with the corals can work together to form expelled coral skeletons into calcium carbonate - the engine of coral reef growth.
FriendFeed - georgeh
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Calcareous soils are freely drained soils containing free calcium carbonate within the profile.
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_ Calcium carbonate crystallizes in the form of rhomb-shaped crystals which belong to the hexagonal system.
An Elementary Study of Chemistry
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There it combines with carbon dioxide from the air to produce calcium carbonate (an insoluble material) and water.
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As a result, the calcium carbonate comes out of solution and is left behind as a tiny bit of solid calcium carbonate.
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Mr. WILKER: What the oysters seem to be doing is using a little bit of protein, or a small amount of an organic component, but have the majority of the material, 90 percent or so, be actually a hard, inorganic calcium carbonate, which is kind of like chalk.
Scientists Probe 'Glue' That Keeps Oysters Together
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Liars' budget and drawings on Paulson stadium deal (Jack Bog's Blog)
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The most common form of calcium is calcium carbonate, which is also the most difficult to absorb.
OUR BODIES, OURSELVES
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Calcium (as calcium carbonate, D-calcium pantothenate, Calcium D-Glucarate
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Moreover, we found that amylopectin in the mortar acted as an inhibitor: The growth of the calcium carbonate crystal was controlled, and a compact microstructure was produced, which should be the cause of the good performance of this kind of organic-organic mortar.
The Secret of the Strength of the Great Wall of China Lies in Sticky Rice Mortar | Impact Lab
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However, another hypothesis suggests that gypsiferous deposits could also be formed from the reaction between calcium carbonate and sulfuric acid, which was apparently from the oxidation of the element sulfur.
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Ocean acidification is often referred to as osteoporosis of the oceans because as acidity rises, shell building creatures such as lobster, oyster, crab, shrimp, and coral are unable to extract the calcium carbonate from the water that they need to build their shells and are thus unable to survive.
Philippe Cousteau: A World Without Whales?
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Calcium carbonate textured the walls like coral, and stalactites hung from the ceiling like lone fangs.
MINUTES TO BURN
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The basic premise is this: As atmospheric carbon dioxide concentrations rise, the ocean becomes more acidic and calcium carbonate shells dissolve more readily.
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Fritted iron can be used on acid soils, but it isn't suitable for use on alkaline or calcareous soils (with calcium carbonate).
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Ground calcium carbonate is one of the most important mineral fillers.
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It contains calcareous matter; the sandy soil grades down to a thick arenaceous "caliche" which is a layer of sand cemented into a limestone by interstitial deposition of calcium carbonate.
Western Gulf coastal grasslands
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The inorganic component is calcium carbonate, and the organic component is amylopectin, which comes from the sticky rice soup added to the mortar.
The Secret of the Strength of the Great Wall of China Lies in Sticky Rice Mortar | Impact Lab
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The shells are made from calcium carbonate, a compound of calcium, carbon, and oxygen.
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Calcareous regosols contain free calcium carbonate in the parent material, shelly sand.
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Carbonate skins are composed primarily of carbonate, usually calcium carbonate, but the carbonate is sometimes combined with magnesium.
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calcium carbonate occurs in the allomorphs calcite and aragonite
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I am doing research on calcium carbonate magnesia and simethicone and found your posts about this post to be very helpful.
Does bullshit cause depression?
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Particulate fillers like talc or ground calcium carbonate generally increase stiffness, while plasticizers enhance flexibility.
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When they contain calcium carbonate gas they are described as carbonated.
