Orthophosphate oxygen polyphosphates. Medical search. Frequent questions

Its chemical formula is H(NH4PO3)nOH showing that each monomer consists of an orthophosphate radical of a phosphorus atom with three oxygens and one negative charge neutralized by an ammonium cation leaving two bonds free to polymerize. (wikipedia.org)
Phosphorus does not exist in elemental form in the natural environment because elemental P is extremely reactive and readily combines with oxygen (O) to form phosphate (PO 4 ). (ufl.edu)
These compounds include salts such as trisodium phosphate and calcium hydroxyapatite, and polyphosphates and organophosphates.The vast number and variety of molecular structures making up organic chemistry (that is, compounds based on carbon atoms) is mirrored in the chemistry of compounds based on phosphorus. (dcceew.gov.au)
Phosphorus (P) in municipal wastewater exists in three forms: (1) orthophosphate, (2) polyphosphate, and (3) organically bound phosphorus. (waterworld.com)
The samples were characterized with high contamination levels of COD (chemical oxygen demand), FOG (fats, oils, grease), TSS (total suspended solids), and TP (total phosphorus). (poultrytimes.com)
Calcium phosphate is a mineral formation, also called apatite , made up of Calcium (Ca), Phosphorus (P), and Oxygen (O). Some variations include Hydrogen (H) and other elements too. (nextgws.com)

In wastewater, P exists as one of several possible phosphate compounds including orthophosphate, polyphosphates, and organic phosphate (Crites and Tchobanoglous 1998). (ufl.edu)
This variety is based on the orthophosphates and the long-chain polyphosphates, compounds in which phosphate groups are linked by oxygen. (dcceew.gov.au)
Under the anaerobic and aerobic conditions, PAOs can take up more inorganic phosphate than their metabolic demand and store it as polyphosphate. (waterworld.com)

Ammonium polyphosphate is an inorganic salt of polyphosphoric acid and ammonia containing both chains and possibly branching. (wikipedia.org)
The properties of ammonium polyphosphate depend on the number of monomers in each molecule and to a degree on how often it branches. (wikipedia.org)
Ammonium polyphosphate can be prepared by reacting concentrated phosphoric acid with ammonia. (wikipedia.org)
However, iron and aluminum impurities, soluble in concentrated phosphoric acid, form gelatinous precipitates or "sludges" in ammonium polyphosphate at pH between 5 and 7. (wikipedia.org)
However, depending on the degree of polymerization, ammonium polyphosphate can act as a chelating agent to keep certain metal ions dissolved in solution. (wikipedia.org)
Ammonium polyphosphate is used as a food additive, emulsifier, (E number: E545) and as a fertilizer. (wikipedia.org)
Ammonium polyphosphate (APP) is also used as a flame retardant in many applications such as paints and coatings, and in a variety of polymers: the most important ones are polyolefins, and particularly polypropylene, where APP is part of intumescent systems. (wikipedia.org)
Ammonium polyphosphates used as flame retardants in polymers have long chains and a specific crystallinity (Form II). (wikipedia.org)
US 4721519 , Thomas, William P. & Lawton, William S., "Stable ammonium polyphosphate liquid fertilizer from merchant grade phosphoric acid", published 1988-01-26, assigned to American Petro Mart Inc. (wikipedia.org)

Under these conditions a group of heterotrophic bacteria, called polyphosphate-accumulating organisms (PAOs) are selectively enriched in the bacterial community. (waterworld.com)
By microscopy with staining methods, it was proved that all of isolated bacteria had the activities of polyphosphate and PHB accumulation under the alternating anaerobic-anoxic conditions. (kyushu-u.ac.jp)
Activated Sludge - Sludge floc produced in raw or settled wastewater by the growth of zoogleal bacteria and other organisms in the presence of dissolved oxygen. (ca.gov)

Gold and Sims (2001) reported that 85% of the P in septic tank effluent (i.e., wastewater that has passed through the septic tank but has not entered the drain field) is in the form of orthophosphate. (ufl.edu)

Polyphosphates and organophosphates: These also vary widely in their solubility generally decreasing as the molecular weight increases, and again is very dependent on pH. (dcceew.gov.au)

The common element in EBPR implementations is the presence of an anaerobic tank (nitrate and oxygen are absent) prior to the aeration tank. (waterworld.com)
Anaerobic - In the absence of oxygen. (ca.gov)

Orthophosphate is also referred to as 'available or reactive P' and may be present in several dissolved forms. (ufl.edu)

To resolve this issue, you can employ polyphosphates or similar tools that coat the iron and make it difficult for these minerals to build up. (dewco.com)

book Le mythe de l\'authenticité : lectures, interprétations, dramaturgies de Britannicus de Jean Racine en France (1669 2004) into the other tube conditions of battlefield should result observed. (hotel-mainlust.de)

Rare-earth orthophosphates, which are the main component of rare-earth ores, are stable phosphate groups in acidic and basic solutions. (scirp.org)
Orthophosphate is the most common component of the total phosphate load. (1h2o3.com)
A bleach granule for hard or soft water laundering according to Claim 1 wherein the NAPAA has been contacted with a phosphate buffer solution, preferably comprised of orthophosphates or pyrophosphates or combinations thereof in a concentration range of from 0.01M to 1M, with a pH between 3.5 and 6.0. (sumobrain.com)

Orthophosphates (PO4 ions) are the most common and basic form of phosphates in water. (1h2o3.com)
Sulfite ions (SO32−) may occur in boilers and boiler feedwaters treated with sulfite for dissolved oxygen control, in natural waters or wastewaters as a result of industrial pollution, and in treatment plant effluents dechlorinated with sulfur dioxide (SO2). (mitreh.com)

In the condensed phase, the resultant carbonaceous char helps to shield the underlying polymer from attack by oxygen and radiant heat. (wikipedia.org)
a long linear polymer of orthophosphates linked by high energy phosphoanhydride bonds, is widely distributed in bacteria, fungi, protozoa, plants, and mammals (1-3). (nih.gov)

Polyphosphate has a chain structure in which the PO 4 unit shares two oxygen atoms and ultraphosphate has a network structure. (scirp.org)
A flame is a rapid free radical, chain reaction of volatile materials with oxygen in the air. (codemint.net)

The condensed phosphates have different properties from those of orthophosphates and can therefore be used as novel functional materials [8,9]. (scirp.org)

A problem encountered during development of NAPAA was its low AvO, or available oxygen, in a hard water wash solution. (sumobrain.com)

The removal efficiency of important parameters such as chemical oxygen demand (COD), five day-biological oxygen demand in (BOD 5 ), total suspended solids (TSS), nitrate (NO 3 − ), total Kjeldahl nitrogen (TKN), orthophosphate (PO 4 3− ) and TDS are followed. (iwaponline.com)