Search results
Results From The WOW.Com Content Network
Accordingly, (secondary) phosphate is generally only preserved in enclosed spaces, such as a tightly-closed bivalve shell. [ 3 ] Higher concentrations of phosphate in the sea water do not enhance phosphatization, as may seem natural; rather, it increases the rate at which the organism breaks up, perhaps because the mineral "fertilizes" the ...
Gold(III) phosphate is a chemical compound with the formula AuPO 4. It is a pale yellow solid that is insoluble in water and acetone . It decomposes at 450 °C into gold metal, phosphorus pentoxide , and oxygen .
γ-L-Glutamyl-L-cysteine, also known as γ-glutamylcysteine (GGC), is a dipeptide found in animals, plants, fungi, some bacteria, and archaea.It has a relatively unusual γ-bond between the constituent amino acids, L-glutamic acid and L-cysteine and is a key intermediate in the γ-glutamyl cycle first described by Meister in the 1970s.
To promote Cotsworth's calendar reform the International Fixed Calendar League was founded in 1923, just after the plan was selected by the League of Nations as the best of 130 calendar proposals put forward. [7] Sir Sandford Fleming, the inventor and driving force behind worldwide adoption of standard time, became the first president of the ...
Organophosphorus chemistry is the scientific study of the synthesis and properties of organophosphorus compounds, which are organic compounds containing phosphorus. [1] They are used primarily in pest control as an alternative to chlorinated hydrocarbons that persist in the environment.
The systematic name is guanosine-3′,5′-bis(diphosphate) 3′-diphosphohydrolase. Other names in common use include guanosine-3′,5′-bis(diphosphate) 3′-pyrophosphatase, PpGpp-3'-pyrophosphohydrolase, and PpGpp phosphohydrolase. This enzyme participates in purine metabolism.
It is diagnosed based on a blood phosphate concentration of less than 0.81 mmol/L (2.5 mg/dL). [1] When levels are below 0.32 mmol/L (1.0 mg/dL) it is deemed to be severe. [2] Treatment depends on the underlying cause. [1] Phosphate may be given by mouth or by injection into a vein. [1]
It is often combined as a solid solution with hydroxylapatite (Ca 5 (PO 4) 3 OH or Ca 10 (PO 4) 6 (OH) 2) in biological matrices. Chlorapatite (Ca 5 (PO 4) 3 Cl) is another related structure. [5] Industrially, the mineral is an important source of both phosphoric and hydrofluoric acids. Fluorapatite as a mineral is the most common phosphate ...