Benedict's reagent
E470213
Benedict's reagent is a chemical solution used in analytical chemistry to detect the presence of reducing sugars through a characteristic color change upon heating.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
analytical reagent
ⓘ
chemical reagent ⓘ |
| advantageOverFehling | greater stability on storage ⓘ |
| alkalinityProvidedBy | sodium carbonate ⓘ |
| colorChange |
blue to brick-red
ⓘ
blue to green ⓘ blue to orange ⓘ blue to yellow ⓘ |
| comparedWith | Fehling's solution NERFINISHED ⓘ |
| containsIon |
carbonate ion
ⓘ
citrate ion ⓘ sulfate ion ⓘ |
| developedBy | Stanley Rossiter Benedict NERFINISHED ⓘ |
| formsProduct |
Cu2O
ⓘ
red precipitate of copper(I) oxide ⓘ |
| hasActiveSpecies | Cu2+ ion ⓘ |
| hasColor | blue ⓘ |
| hasComponent |
copper(II) sulfate
ⓘ
sodium carbonate ⓘ sodium citrate ⓘ |
| haspH | alkaline ⓘ |
| hasState | aqueous solution ⓘ |
| hazard | irritant ⓘ |
| indicates | presence of reducing sugar by brick-red precipitate ⓘ |
| notReactiveWith |
most non-reducing sugars
ⓘ
sucrose (without prior hydrolysis) ⓘ |
| reactsWith |
aldehyde groups in sugars
ⓘ
alpha-hydroxy ketone groups in sugars ⓘ reducing sugars ⓘ |
| redoxProcess |
Cu2+ reduced to Cu+ by reducing sugar
ⓘ
reducing sugar oxidized to corresponding carboxylic acid ⓘ |
| requires | alkaline medium ⓘ |
| requiresCondition | heating ⓘ |
| semiQuantitative | yes ⓘ |
| semiQuantitativeFor | approximate concentration of reducing sugars ⓘ |
| stabilizedBy | sodium citrate ⓘ |
| storageForm | ready-to-use solution ⓘ |
| testName | Benedict's test NERFINISHED ⓘ |
| undergoesChange | color change on heating with reducing sugars ⓘ |
| usedFor | detection of reducing sugars ⓘ |
| usedIn |
analytical chemistry
ⓘ
clinical biochemistry ⓘ educational laboratory experiments ⓘ urine sugar testing ⓘ |
| usedOn |
fructose
ⓘ
glucose ⓘ lactose ⓘ maltose ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.