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As a metalloid, its chemistry is largely covalent in nature, noting it can form brittle alloys with metals, and has an extensive organometallic chemistry. Most alloys of arsenic with metals lack metallic or semimetallic conductivity. The common oxide of arsenic (As 2 O 3) is acidic but weakly amphoteric. Antimony, showing its brilliant lustre
A silanol is a functional group in silicon chemistry with the connectivity Si–O–H. It is related to the hydroxy functional group (C–O–H) found in all alcohols. Silanols are often invoked as intermediates in organosilicon chemistry and silicate mineralogy. [1] If a silanol contains one or more organic residues, it is an organosilanol.
For seven decades, fluorosulfonic acid HSO 3 F and trifluoromethanesulfonic acid CF 3 SO 3 H were the strongest known acids that could be isolated as single compounds. Both are about a thousand times more acidic than pure sulfuric acid. In 2004, a boron compound broke this record by a thousand fold with the synthesis of carborane acid H(CHB 11 ...
General structure of a sulfonic acid with the functional group indicated in blue. In organic chemistry, sulfonic acid (or sulphonic acid) refers to a member of the class of organosulfur compounds with the general formula R−S(=O) 2 −OH, where R is an organic alkyl or aryl group and the S(=O) 2 (OH) group a sulfonyl hydroxide. [1]
These metals, such as iron, aluminium, titanium, sodium, calcium, and the lanthanides, would rather bond with fluorine than iodine. They form stable products with hard bases, which are bases with ionic bonds. They target molecules such as phospholipids, nucleic acids, and ATP. Class B metals are metals that form soft acids. [2]
If there is another functional group at a carbon, it may be named with the Greek letter, e.g., the gamma-amine in gamma-aminobutyric acid is on the third carbon of the carbon chain attached to the carboxylic acid group. IUPAC conventions call for numeric labeling of the position, e.g
Selenium is produced by roasting the coinage metal selenides X 2 Se (X = Cu, Ag, Au) with soda ash to give the selenite: X 2 Se + O 2 + Na 2 CO 3 → Na 2 SeO 3 + 2 X + CO 2; the selenide is neutralized by sulfuric acid H 2 SO 4 to give selenous acid H 2 SeO 3; this is reduced by bubbling with SO 2 to yield elemental selenium. Polonium and ...
Vanadic acid, H 3 VO 4 exists only at very low concentrations because protonation of the tetrahedral species [H 2 VO 4] − results in the preferential formation of the octahedral [VO 2 (H 2 O) 4] + species. In strongly acidic solutions, pH < 2, [VO 2 (H 2 O) 4] + is the predominant species, while the oxide V 2 O 5 precipitates from solution at ...