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Sodium metabisulfite or sodium pyrosulfite (IUPAC spelling; Br. E. sodium metabisulphite or sodium pyrosulphite) is an inorganic compound of chemical formula Na 2 S 2 O 5. The substance is sometimes referred to as disodium metabisulfite. It is used as a disinfectant, antioxidant, and preservative agent. [2]
Sodium perborate is also used as an oxidizing reagent in organic synthesis. For example, it converts thioethers into sulfoxides and sulfones.. Another use of sodium perborate in organic synthesis is as a convenient alternative to H 2 O 2, for example in the 2 step conversion of an aryl halide to a phenol (the first step is a Miyaura borylation).
The sodium channel selectivity filter is composed of a single residue in each of the four pore-loops of the four functional domains. These four residues are known as the DEKA motif. The permeation rate of sodium through the sodium channel is determined by a four carboxylate residues, the EEDD motif, which make up the outer charged ring.
Relatively common [6] [7] Hyponatremia or hyponatraemia is a low concentration of sodium in the blood. [4] It is generally defined as a sodium concentration of less than 135 mmol/L (135 mEq/L ), with severe hyponatremia being below 120 mEq/L. [3] [8] Symptoms can be absent, mild or severe. [2] [9] Mild symptoms include a decreased ability to ...
Infobox references. Sodium permanganate is the inorganic compound with the formula Na MnO 4. It is closely related to the more commonly encountered potassium permanganate, but it is generally less desirable, because it is more expensive to produce. It is mainly available as the monohydrate. This salt absorbs water from the atmosphere and has a ...
Sodium nitroprusside ( SNP ), sold under the brand name Nitropress among others, is a medication used to lower blood pressure. [3] This may be done if the blood pressure is very high and resulting in symptoms, in certain types of heart failure, and during surgery to decrease bleeding. [3]
Sodium hypobromite is an inorganic compound with the chemical formula Na O Br. It is a sodium salt of hypobromous acid. It consists of sodium cations Na+ and hypobromite anions −OBr. It is usually obtained as the pentahydrate, so the compound that is usually called sodium hypobromite actually has the formula NaOBr·5H2O.
