"Pyrophosphate" Natural Recordings by Native Speakers
A pyrophosphate is a salt or ester of pyrophosphoric acid, where two phosphate groups form a phosphorus-oxygen-phosphorus bond. Pyrophosphate ions or esters can also be generated in reactions involving phosphorus pentoxide and water: P4O10 + H2O → P2O5 + H4P2O7
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Pyrophoricity refers to the property of a chemical compound or element that is capable of spontaneously igniting in air at or below a certain temperature, often when exposed to oxygen. This means that the substance becomes highly reactive and tends to catch fire or ignite rapidly, usually without the presence of an external ignition source.<br><br>In other words, pyrophoricity is the ability of a substance to ignite spontaneously when exposed to air, often resulting in a rapid and uncontrollable combustion reaction. This property can be a significant safety hazard, as it can lead to accidental fires or explosions.<br><br>Examples of pyrophoric substances include:<br><br> Phosphorus<br> Sulfur<br> lodine<br> Some organic compounds, such as tributyl phosphate and t-butyl phosphate<br><br>Pyrophoricity is often used in laboratory settings, where the handling of these substances requires special precautions to prevent accidental ignition and fires.
Pyrophorous refers to something that is capable of bursting into flames easily, especially when heated. It comes from the Greek words "pyro" meaning fire and "phoros" meaning bearing or carrying.
Pyrophosphoric acid is a chemical compound with the formula H4P2O7. It is an acid which is Lewis acid and is the anhydride of dihydrogen pyrophosphoric acid, H4P2O7.
Pyrophosphorylase is an enzyme that catalyzes the pyrophosphorylation of an acceptor molecule, meaning it adds a pyrophosphate group (-OPO3) to another molecule. This is often done as a preparative step in chemical synthesis, where a nucleophilic attack by a molecule's group (-OH) is facilitated by a phosphorylable group, usually also one on the enzyme. Several specialized enzymes of this type are known.
Pyrophosphorylated refers to a chemical process where a phosphate group is linked to another phosphate group through oxygen atoms. This process creates a pyrophosphate bond, often denoted as P-P or OP-O-PO, which is a high-energy linkage that can be hydrolyzed to release energy, typically to drive various chemical reactions, such as those in metabolism and DNA/RNA synthesis.
Pyrophyllite is a type of mineral that is a member of the mica group. It is a hydrated aluminum silicate mineral with the chemical formula Al2Si4O10(OH)2. Pyrophyllite is usually white, gray, or pale blue and has a vitreous or pearly luster.<br><br>It is found in metamorphic and igneous rocks and is often associated with other mica minerals such as biotite and muscovite. Pyrophyllite can also occur as a primary mineral in some igneous rocks.<br><br>The name "pyrophyllite" comes from the Greek words "pyro" meaning fire and "phyllos" meaning leaf, but it does not contain iron, so its name is somewhat misleading.<br><br>Despite its name, pyrophyllite has some practical uses, including as a filler or extender in the production of plastics, paints, and ceramics, as well as in the manufacture of refractory materials, such as furnace linings and kiln furniture. It is also used as a protective coating in the production of cement and other building materials.