dicalcium phosphate patents

Premixed Calcium Phosphate Cement Pastes | NIST

A self-hardening calcium phosphate cement (CPC-I), consisting of tetracalcium phosphate (TTCP) and dicalcium phosphate anhydrous (DCPA), has been shown in clinical studies to …

Calcium hydrogen phosphate | CaHPO4 - PubChem

Because calcium hydrogen phosphate is incongruently soluble, it is typically contaminated with various amounts (6-10%) of dicalcium phosphate and free phosphorus acid resulting from in-process disproportionation of the monocalcium salt.

Product Information DICALCIUM PHOSPHATE, ANHYDROUS …

infringe valid patents or as extending license under valid patents. Product Information DICALCIUM PHOSPHATE, ANHYDROUS USP/FCC GRADE DESCRIPTION Dicalcium Phosphate, Anhydrous is a white, odorless, tasteless powder. It is stable in air. European Pharmacopoeia (EP 3rd ed.) Certificates of Analysis are available on request.

Calipharm D (Dicalcium Phosphate Dihydrate)

(Dicalcium Phosphate Dihydrate) (1/2) PRODUCT DATA SHEET IDENTIFICATION CAS N° [] SYNONYM ... shall be construed as a recommendation for uses which infringe valid patents or as extending license under valid patents. Calipharm D ® (Dicalcium Phosphate Dihydrate) (2/2) On …

Calcium hydrogen phosphate dihydrate | CaH5O6P - PubChem

The phosphate ions in calcium phosphate likely react with hydrochloric acid in the stomach to neutralize the pH. In toothpaste and in systemic circulation, calcium phosphate provides a source of calcium and phosphate ions to support remineralization of the teeth and bone homeostasis respectively. The increase in plasma calcium reduces calcium flux from osteocyte activity by reducing the ...

Acid Treatment Patents and Patent Applications (Class 423 ...

Aug 13, 2013· Abstract: A process is provided for the production of dicalcium phosphate form a phosphate source material in which a solution of phosphoric acid is produced by the action of a suitable mineral acid, generally sulphuric acid, on a phosphate source material. Calcium fluoride is precipitated at a pH of between 3.5 and 4.5 followed by hydrolyzing ...

Dicalcium phosphate | HCaO4P | ChemSpider

Structure, properties, spectra, suppliers and links for: Dicalcium phosphate,, dibasic calcium phosphate, Calcium phosphate, dibasic.

Dicalcium phosphate - Wikipedia

Dicalcium phosphate is the calcium phosphate with the formula CaHPO 4 and its dihydrate. The "di" prefix in the common name arises because the formation of the HPO 4 2– anion involves the removal of two protons from phosphoric acid, H 3 PO 4.It is also known as dibasic calcium phosphate or calcium monohydrogen phosphate.Dicalcium phosphate is used as a food additive, it is found in some ...

Indian Patents. 202038:A PROCESS FOR THE MANUFACTURE OF ...

Phosphoric acids which are obtained on acidification of natural phosphates are purified and then neutralized to produce dicalcium phosphate. In the US patent no.6183712 a process wherein calcium phosphate is reacted with a mineral acid and the product thus obtained is hydrolyzed to form a corresponding calcium salt has been reported. This ...

Dicalcium phosphate dihydrate with improved stability ...

United States Patent 4244931 . Abstract: Dicalcium phosphate dihydrate containing a sufficient amount of trimagnesium phosphate and/or tetrasodium pyrophosphate to inhibit spontaneous hydrolysis and/or decomposition of the dicalcium phosphate dihydrate is widely used as a dental polishing agent with and without added fluoride. Now it has been ...

Eric Baines Inventions, Patents and Patent Applications ...

Abstract: An oral preparation comprising a dentally acceptable oral vehicle and dispersed therein a cationic antibacterial agent in amount of about 0.01-5% by weight based on the cationic portion thereof and about 0.05-5% by weight of an anionic phosphate ester surface active agent comprising a mixture of monoester of the formula ##STR1## wherein R is an alkyl group of 10-20 carbon atoms, n an ...

Unwanted Effects of Dicalcium Phosphate - Proper Nutrition ...

top 5 feed phosphate manufactuer in Asia-feed grade dicalcium phosphate DCP, feed grade monocalcium phosphate MCP 22%, 22.3%, 22.7%

Dicalcium phosphate dihydrate having improved stability ...

European Patent Application EP0045826 ... Dicalcium phosphate dihydrate containing a sufficient amount of trimagnesium phosphate and/or tetrasodium pyrophosphate to inhibit spontaneous hydrolysis and/or decomposition of the dicalcium phosphate dihydrate is widely used as a dental polishing agent with and without added fluoride. Now it has been ...

EP0240880A2 - Dicalcium phosphate dihydrate for fluoride ...

The monofluorophosphate compatibility of dicalcium phosphate dihydrate can be improved in processes in which a slaked lime slurry is reacted with phosphoric acid to form a monocalcium phosphate solution to which is added magnesium oxide, additional lime slurry and pyrophosphoric acid with later removal of the dicalcium phosphate dihydrate.

Production of dicalcium phosphate or ... - Free Patents Online

The invention claimed is: 1. A process for the production of dicalcium phosphate from a phosphate source material comprising the steps of: (a) preparing a solution of phosphoric acid by the action of a suitable mineral acid on a phosphate source material; (b) optionally separating the solution from residual solid materials; and (c) treating the solution with suitable alkaline, calcium material ...

Roll Compaction/Dry Granulation of Dibasic Calcium ...

Therefore, dibasic calcium phosphate anhydrous was used as a model material. One milled grade, 2 agglomerated grades with different porosities, and a functionalized structure, that is, an agglomerate formed by very small primary particles, were included. Particle size, density, and specific surface area of raw materials were measured. ...

Patent Of Dicalcium Phosphate From Rock Phosphate

GB782177A - Dicalcium phosphate - Google Patents. Fluoride is removed in the preparation of dicalcium phosphate from wet process phosphoric acid by neutralizing the acid with an alkaline compound of calcium, e.g. lime or calcium carbonate, to a pH range 2.9-3.1; removing the precipitate, which is mainly fluoride; and then neutralizing the residual acid to precipitate dicalcium phosphate.

Calcium phosphate dihydrate | Ca3H4O10P2 - PubChem

Calcium phosphate dihydrate | Ca3H4O10P2 | CID 22340838 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological ...

Production of dicalcium phosphate or ... - Free Patents Online

United States Patent 6183712 ... Dicalcium phosphate, CaHPO 4, also known as calcium hydrogenphosphate, has a relatively high phophorous content (22.8% m:m) and may be used as a fertilizer. It is also used in animal licks as well as in the manufacture of certain toothpastes.

Jan C. De Waal Inventions, Patents and Patent Applications ...

Production of dicalcium phosphate or monocalcium phosphate from calcium phosphate Patent number: 6183712 Abstract: A method of producing dicalcium phosphate from calcium phosphate includes reacting the calcium phosphate with a mineral acid such as sulphuric acid to produce a calcium salt and phosphoric acid.

Dicalcium Phosphate Benefits, Side Effects and Dosage

Aug 28, 2020· Dicalcium Phosphate Dosage. Dicalcium phosphate supplements are available as pills, capsules and in complexes for bone support. You can also take dicalcium phosphate powder. As a dietary supplement, take 2,000 mg (rounded 1/2 tsp) once or twice daily, or as directed by your physician. Dicalcium phosphate powder has a chalky taste.

CALCIUM HYDROGEN PHOSPHATE () - Chemical …

Most-cited Publications. Sintering behaviour and mechanical properties of hydroxyapatite and dicalcium phosphate (Journal of Materials Science: Materials in Medicine, 1993); Dicalcium phosphate cements: Brushite and monetite (Acta Biomaterialia, 2012); In vivo study of calcium phosphate cements: implantation of an -tricalcium phosphate/dicalcium phosphate dibasic/tetracalcium phosphate ...

A-TAB (Dicalcium Phosphate, Anhydrous ...

recommendation for uses which infringe valid patents or as extending license under valid patents. -TAB® (Dicalcium Phosphate, Anhy drous, Granular) (2/2) The product is free of Residual Solvents compendial specifications, current edition. 25 kg net weight paper bags – Resource Code F110BG0035

US2948590A - Process for the manufacture of dicalcium ...

dicalcium phosphate calcium carbonate Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US636468A Inventor Donald J Smalter Raymond E Tuttle

Is Disodium Phosphate Bad for You? - Healthline

Jun 22, 2017· Disodium phosphate is a food additive. It's "generally recognized as safe" (GRAS) by the U.S. Food and Drug Administration (FDA).. Phosphates like disodium phosphate are derived from the ...

What is Monocalcium Phosphate E341(i) in Food: Vegan, Uses ...

Jan 13, 2020· We hold a patent to produce DCP which is under commercial production since last 15 years in India. We are now helping a client to produce Mono Calcium Phosphate or Mono dicalcium phosphate-feed grade, and are looking to upgrade to food grade MCP. We can also produce slow acting leavening formula (with additive of calcium sulfate or aluminium ...

Process for preparing dicalcium phosphate dihydrate having ...

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 1. A process for preparing dicalcium phosphate dihydrate having about 0.1-5% by weight of calcium displaced by a divalent metal ion comprising reacting with a mixture of monobasic and dibasic sodium phosphate in an aqueous solution maintained no higher than pH 5, a reactant mixture ...

DI-TAB (Dicalcium Phosphate Dihydrate ...

(Dicalcium Phosphate Dihydrate, Unmilled) PRODUCT DATA SHEET IDENTIFICATION CAS Number [] SYNONYM Dibasic Calcium Phosphate Dihydrate Phosphoric acid, calcium salt (1:1) ... recommendation for uses which infringe valid patents or as extending license under valid patents.

DI-Calcium phosphate | Ca2O4P+ - PubChem

DI-Calcium phosphate | Ca2O4P+ | CID 21584077 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological ...

US2287699A - Stabilized dicalcium phosphate - Google Patents

dicalcium phosphate pyrophosphate precipitate mother liquor alkali metal Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US319108A Inventor ...

EP 0891776 B1 - The Lens - Free & Open Patent and ...

1) 700 g of granular Dicalcium phosphate, Dihydrate (Emcompress®, Mendell, Paterson, NJ ) is added to the mixing bowl of a Kitchen Aid mixer. 2) While mixing at low speed, over a period of 5 minutes add 200 g of simethicone, USP. 3) Continue mixing at low speed for an additional 5 minutes.

US4244931A - Dicalcium phosphate ... - Google Patents

Dicalcium phosphate dihydrate containing a sufficient amount of trimagnesium phosphate and/or tetrasodium pyrophosphate to inhibit spontaneous hydrolysis and/or decomposition of the dicalcium phosphate dihydrate is widely used as a dental polishing agent with and without added fluoride. Now it has been found that dicalcium phosphate dihydrate containing a sufficient amount of pyrophosphate …