phosphate minerals encyclopedia
Welcome to the broken dawn

phosphate minerals encyclopedia

About this site

K. Hudson-Edwards, in Encyclopedia of Geology, 2005. Crystal Structure. The arsenates are a subclass of the phosphate mineral class, which has a basic chemical unit of [AO 4] with a negative three charge (-3) and a tetrahedral symmetry. In the case of the arsenates, the ‘A’ in

About this site

K.R.M. Mackey, A. Paytan, in Encyclopedia of Microbiology (Third Edition), 2009 Phosphate mineral formation. Phosphate mineral formation represents another phosphorus sink that is influenced by microbial activity; however, it encompasses processes other than cellular assimilation and short-term storage of phosphorus as biological molecules.

Phosphate Mineral | Article about Phosphate Mineral by The ...

phosphate, salt or ester of phosphoric acid phosphoric acid, any one of three chemical compounds made up of phosphorus, oxygen, and hydrogen (see acids and bases). The most common, orthophosphoric acid, H 3 PO 4, is usually simply called phosphoric acid. Click the link for more information., H 3 PO 4.Because phosphoric acid is tribasic (having three replaceable hydrogen atoms), it forms ...

Phosphate minerals | Article about Phosphate minerals by ...

The chapter "Palermo Phosphate Minerals," we find, contains short, straightforward discussions of each species accompanied and dominated by much larger paintings in the same impressionistic style--beautiful, dreamy, minutely detailed colored flights of mineral

About this site

Phosphate minerals contain the tetrahedrally coordinated phosphate (PO 4 3−) anion along sometimes with arsenate (AsO 4 3−) and vanadate (VO 4 3−) substitutions, and chloride (Cl −), fluoride (F −), and hydroxide (OH −) anions that also fit into the crystal structure.. The phosphate class of minerals is a large and diverse group, however, only a few species are relatively common.

About this site

Phosphate mineral, any of a group of naturally occurring inorganic salts of phosphoric acid, H 3 (PO 4).More than 200 species of phosphate minerals are recognized, and structurally they all have isolated (PO 4) tetrahedral units.Phosphates can be grouped as: (1) primary phosphates that have crystallized from a liquid; (2) secondary phosphates formed by the alteration of primary phosphates; and ...

Phosphate minerals - WikiMili, The Free Encyclopedia

A Phosphate is a chemical derivative of phosphoric acid. The phosphate ion (PO 4) 3− is an inorganic chemical, the conjugate base that can form many different salts. In organic chemistry, a phosphate, or organophosphate, is an ester of phosphoric acid. Of the various phosphoric acids and phosphates, organic phosphates are important in biochemistry and biogeochemistry, and inorganic ...

Phosphate_minerals - chemeurope

The phosphate class of minerals is a large and diverse group, however, only a few species are relatively common. Phosphate minerals are often used for control of rust and prevention of corrosion on ferrous materials, applied with electrochemical conversion coatings ...

Phosphate Mineral | Article about Phosphate Mineral by The ...

phosphate, salt or ester of phosphoric acid phosphoric acid, any one of three chemical compounds made up of phosphorus, oxygen, and hydrogen (see acids and bases). The most common, orthophosphoric acid, H 3 PO 4, is usually simply called phosphoric acid. Click the link for more information., H 3 PO 4.Because phosphoric acid is tribasic (having three replaceable hydrogen atoms), it forms ...

phosphate mineral | Description, Uses, & Facts | Britannica

Phosphate mineral, any of a group of naturally occurring inorganic salts of phosphoric acid, H 3 (PO 4).More than 200 species of phosphate minerals are recognized, and structurally they all have isolated (PO 4) tetrahedral units.Phosphates can be grouped as: (1) primary phosphates that have crystallized from a liquid; (2) secondary phosphates formed by the alteration of primary phosphates; and ...

Phosphate - an overview | ScienceDirect Topics

Eugenia Valsami-Jones, in Encyclopedia of Geology (Second Edition), 2021. Apatite and Its Biological Role. Of all phosphates, apatite (Fig. 1 A) represents the most important variant, being the inorganic component of the bones and teeth of vertebrates and the most common mineral host of phosphorus on Earth, occurring in igneous, metamorphic and sedimentary rocks and in soils.

Phosphate Minerals - Google Books

Dec 06, 2012 · Phosphate Minerals. J.O. Nriagu, P.H. Moore. Springer Science & Business Media, Dec 6, 2012 - Science - 444 pages. 0 Reviews. The literature on the geology, chemistry, and biochemistry of phosphorus generally takes its mineralogy for granted. The in cidental information on phosphate minerals given in these texts is often obsolescent and ...

Industrial Minerals | Encyclopedia

May 29, 2018 · Industrial Minerals. Asbestos. Barite. Boron compounds. Corundum. Feldspar. Fluorspar. Phosphates. Potassium salts. Sodium chloride. Sulfur. Resources. Industrial minerals are naturally occurring non-metallic Earth materials that are used in a variety of industrial operations. Some of the materials commonly included in this category include asbestos, bar-ite, boron compounds, clays,

Calcium phosphate | Ca3(PO4)2 - PubChem

Calcium Phosphate is the calcium salt of phosphoric acid with widely used applications. This agent can be used as a countermeasure for exposure to strontium and radium radionuclides. Upon oral uptake, calcium phosphate competes for and blocks the absorption of radium (Ra-226) and strontium in the gastrointestinal (GI) tract.

Phosphate Mineral | definition of Phosphate Mineral by ...

phosphate [fos´fāt] any salt or ester of phosphoric acid. adj., adj phosphat´ic. Phosphates are widely distributed in the body, the largest amounts being in the bones and teeth. They are continually excreted in the urine and feces and must be replaced in the diet. Inorganic phosphates function as buffer salts to maintain the acid-base balance in ...

Calcium Phosphate Mineral - an overview | ScienceDirect Topics

Octacalcium Phosphate. Octacalcium phosphate (OCP) has the chemical formula Ca 8 (HPO 4) 2 (PO 4) 4 ·5H 2O. Octacalcium phosphate, which is structurally similar to hydroxyapatite, is a possible precursor in the formation of apatitic calcium phosphate minerals in

Phosphorite - Wikipedia

Phosphorite, phosphate rock or rock phosphate is a non-detrital sedimentary rock that contains high amounts of phosphate minerals.The phosphate content of phosphorite (or grade of phosphate rock) varies greatly, from 4% to 20% phosphorus pentoxide (P 2 O 5).Marketed phosphate rock is enriched ("beneficiated") to at least 28%, often more than 30% P 2 O 5.This occurs through washing, screening ...

Phosphate Mineral - definition of Phosphate Mineral by The ...

Define Phosphate Mineral. Phosphate Mineral synonyms, Phosphate Mineral pronunciation, Phosphate Mineral translation, English dictionary definition of Phosphate Mineral. n.

Phosphate Rock - an overview | ScienceDirect Topics

Allen V. Barker, in Encyclopedia of Analytical Science (Third Edition), 2019 Rock phosphate. Rock phosphate is a naturally occurring ore of marine sedimentary origin. It may have a composition of 0-30-0, but the grade is noted as 0-3-0, since rock phosphate is sparingly soluble and little of the phosphorus is available to crops.

Arsenic Concentration/toxicity In Rice | Encyclopedia

Encyclopedia is a platform about science and scientists. Content on Encyclopedia tracks the latest progress in research and can be revised by readers at any time. ... M. Competitive sorption of arsenate and phosphate on different clay minerals and soils. Soil Sci. Soc. Am. J. 2002, 66, 1788–1796.

Phosphate Minerals - University of Wisconsin–Madison

Phosphate minerals comprise only a fractional percentage of the soil mass, perhaps averaging 0.02% or so, which impedes their direct identification by optical microscopy and x-ray analysis unless their concentration has been locally increased by addition of phosphate fertilizers. In some cases, beneficiation of native phosphate minerals is ...

Phosphorus in diet: MedlinePlus Medical Encyclopedia

Oct 05, 2021 · Phosphorus is a mineral that makes up 1% of a person's total body weight. It is the second most abundant mineral in the body. It is present in every cell of the body. Most of the phosphorus in the body is found in the bones and teeth. The main function of phosphorus is in the formation of bones and teeth. It plays an important role in how the ...

Phosphate - an overview | ScienceDirect Topics

Eugenia Valsami-Jones, in Encyclopedia of Geology (Second Edition), 2021. Apatite and Its Biological Role. Of all phosphates, apatite (Fig. 1 A) represents the most important variant, being the inorganic component of the bones and teeth of vertebrates and the most common mineral host of phosphorus on Earth, occurring in igneous, metamorphic and sedimentary rocks and in soils.

Triphylite | mineral - Encyclopedia Britannica

Triphylite, common phosphate mineral, lithium iron phosphate (LiFePO 4), usually forming bluish or grayish, glassy masses in lithium- and phosphate-rich granite pegmatites.It forms a solid-solution series with the similar, but more brightly coloured (brown, yellow, or salmon), lithiophilite in which manganese replaces iron in the molecular structure; that is, a complete chemical variation ...

Phosphate Minerals - Lindsay - 1989 - SSSA Book Series ...

Phosphate minerals form under a wide variety of environmental conditions ranging from silicate melts to natural soils to ocean floors. The chapter reviews information on the occurrence of phosphate minerals as a result of weathering of P-bearing minerals in soils or as reaction products of added phosphate compounds with soils and soil minerals.

Primary phosphate | mineralogy | Britannica

phosphate minerals. In phosphate mineral. can be grouped as: (1) primary phosphates that have crystallized from a liquid; (2) secondary phosphates formed by the alteration of primary phosphates; and (3) fine-grained rock phosphates formed at low temperatures from phosphorus-bearing organic material, primarily underwater. Read More.

phosphate - David Darling

A phosphate is a derivative of phosphoric acid: either a phosphate ester or salt containing any of a variety of phosphate ions (Fig 1). Like silicates, these are numerous and complex, the simplest being orthophosphate, PO 4 3-, consisting of a phosphorus atom and four oxygen atoms. Among other things, it is used in the construction of nucleic acids.

Calcium phosphate | Ca3(PO4)2 - PubChem

Calcium Phosphate is the calcium salt of phosphoric acid with widely used applications. This agent can be used as a countermeasure for exposure to strontium and radium radionuclides. Upon oral uptake, calcium phosphate competes for and blocks the absorption of radium (Ra-226) and strontium in the gastrointestinal (GI) tract.

phosphorus | Definition, Uses, & Facts | Britannica

About 550 different minerals have been found to contain phosphorus, but, of these, the principal source of phosphorus is the apatite series in which calcium ions exist along with phosphate ions and variable amounts of fluoride, chloride, or hydroxide ions, according to the formula [Ca 10 (PO 4)

Category:Phosphate_minerals - chemeurope

Category:Phosphate minerals Phosphate minerals contain the phosphate, PO43-, anion. Additional recommended knowledge Better weighing performance in 6 easy

Minerals | Free Full-Text | Production of a Phosphate ...

Apatite is the main source of phosphorous for the making of chemical fertilizers. While apatite is usually recovered from phosphate orebodies as the primary product of a mining exploitation, this paper documents the approach taken to produce a phosphate concentrate as a secondary product from the tailings of a niobium ore concentrator. The conventional desliming/flotation scheme used to ...

GIA Gem Encyclopedia | Complete List Of Gemstones

Morganite is the pink to orange-pink variety of beryl, a mineral that includes emerald and aquamarine. The Facts. Like its cousins emerald and aquamarine, morganite is a variety of the beryl mineral species. This gem gets its subtle blush when a trace amount of manganese makes its

Phosphate_minerals - chemeurope

The phosphate class of minerals is a large and diverse group, however, only a few species are relatively common. Phosphate minerals are often used for control of rust and prevention of corrosion on ferrous materials, applied with electrochemical conversion coatings ...

Copyright © 2021.Company name All rights reserved.Dawn Broken
E-mail: