| Synonyms | D-gluconic acid; Dextronic acid |
| Definition | Gluconic acid is an aqueous solution of gluconic acid and glucono-delta-lactone |
| Einecs | |
| Chemical name | Gluconic acid |
| Chemical formula | C6H12O7 (gluconic acid) |
| Molecular weight | 196,2 |
| Assay | Content not less than 49,0 % (as gluconic acid) |
| Description | Colourless to light yellow, clear syrupy liquid |
| Identification |
|---|
| Formation of phenylhydrazine derivative | Positive. Compound formed melts between 196 °C and 202 °C with decomposition |
| Purity |
|---|
| Residue on ignition | Not more than 1,0 % 550 °C +/– 20 °C till disappearance of organic residues (black spots). |
| Reducing matter | Not more than 2,0 % (as D-glucose) |
| Chloride | Not more than 350 mg/kg |
| Sulphate | Not more than 240 mg/kg |
| Sulphite | Not more than 20 mg/kg |
| Arsenic | Not more than 3 mg/kg |
| Lead | Not more than 1 mg/kg |
| Mercury | Not more than 1 mg/kg |
