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Addition of boron hydrides to alkenes or alkyne is a valuable reaction in organic chemistry. The reaction is called hydroboration that gives organoboron compounds, which are a valuable group of intermediates for other organic synthesis (Chem.libretexts.org). The simplest borane, $\ce{BH3}$, exists as the dimer, $\ce{B2H6}$, or in complexed form with certain ...

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The term superphosphate is really old, even well before the concept of atoms was proposed by Dalton. Therefore it is difficult to rationalize the choice of this terminology. In the unabridged version of the Oxford English Dictionary, you can see the earliest usage dates back to 1798 Chemistry. A phosphate containing an excess of phosphoric acid; an ...

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Superphosphate is a name used in agriculture, therefore, it does not mean the same super in the superoxides. There are two important types of fertilizers in agriculture: Nitrogenous and phosphatic fertilizers. Superphosphate is an one of major segments in phosphatic fertilizers, which is described as follows (Ref.1): The primary products of the phosphatic ...

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"Super" in "superphsophate" probably refers to it being super-active, with its phosphorous more readily available than it would be in an ordinary phosphate. Chemically this is done by combining calcium phosphate with sulfuric acid giving an acid salt that is more soluble than normal-salt calcium phosphate would be. See here, for example. Superoxide is not ...

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