Definition of phosphonic acid in English:

phosphonic acid

nounfɒsˈfɒnɪkfäsˌfänik ˈasid

mass nounChemistry

A crystalline acid obtained by the reaction of phosphorus trioxide with water.
〔化〕膦酸
A dibasic acid; chemical formula: HPO(OH)₂
Example sentencesExamples
- A Hoffman rearrangement employing sodium hypobromite yielded the amine which was acid hydrolysed to obtain crude 2-aminoindan - 2 - phosphonic acid.
- The abscission process was also induced in vivo by embrioctomy or 2-chloroethyl phosphonic acid treatment in fruitlets and by deblading in leaves.
- The phosphoric or phosphonic acid ester formed with the enzyme is extremely stable and is hydrolyzed very slowly.

Origin

Late 19th century: phosphonic from phospho- 'relating to phosphorus', on the pattern of sulphonic.

Definition of phosphonic acid in US English:

phosphonic acid

nounfäsˌfänik ˈasid

Chemistry

A crystalline acid obtained by the reaction of phosphorus trioxide with water.
〔化〕膦酸
A dibasic acid; chemical formula: HPO(OH)₂
Example sentencesExamples
- The abscission process was also induced in vivo by embrioctomy or 2-chloroethyl phosphonic acid treatment in fruitlets and by deblading in leaves.
- The phosphoric or phosphonic acid ester formed with the enzyme is extremely stable and is hydrolyzed very slowly.
- A Hoffman rearrangement employing sodium hypobromite yielded the amine which was acid hydrolysed to obtain crude 2-aminoindan - 2 - phosphonic acid.

Origin

Late 19th century: phosphonic from phospho- ‘relating to phosphorus’, on the pattern of sulphonic.

词汇	phosphonic acid
释义	Definition of phosphonic acid in English: phosphonic acid nounfɒsˈfɒnɪkfäsˌfänik ˈasid mass nounChemistry A crystalline acid obtained by the reaction of phosphorus trioxide with water. 〔化〕膦酸 A dibasic acid; chemical formula: HPO(OH)₂ Example sentencesExamples A Hoffman rearrangement employing sodium hypobromite yielded the amine which was acid hydrolysed to obtain crude 2-aminoindan - 2 - phosphonic acid. The abscission process was also induced in vivo by embrioctomy or 2-chloroethyl phosphonic acid treatment in fruitlets and by deblading in leaves. The phosphoric or phosphonic acid ester formed with the enzyme is extremely stable and is hydrolyzed very slowly. Origin Late 19th century: phosphonic from phospho- 'relating to phosphorus', on the pattern of sulphonic. Definition of phosphonic acid in US English: phosphonic acid nounfäsˌfänik ˈasid Chemistry A crystalline acid obtained by the reaction of phosphorus trioxide with water. 〔化〕膦酸 A dibasic acid; chemical formula: HPO(OH)₂ Example sentencesExamples The abscission process was also induced in vivo by embrioctomy or 2-chloroethyl phosphonic acid treatment in fruitlets and by deblading in leaves. The phosphoric or phosphonic acid ester formed with the enzyme is extremely stable and is hydrolyzed very slowly. A Hoffman rearrangement employing sodium hypobromite yielded the amine which was acid hydrolysed to obtain crude 2-aminoindan - 2 - phosphonic acid. Origin Late 19th century: phosphonic from phospho- ‘relating to phosphorus’, on the pattern of sulphonic.
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