Product name:Gluconic acid
CAS:526-95-4
Molecular Formula:C6H12O7
Formula Weight:196.16
Specification:500ml
Description:
Gluconic acid is an organic compound with molecular formula C6H12O7 and condensed structural formula HOCH2(CHOH)4COOH. It is one of the 16 stereoisomers of 2,3,4,5,6-pentahydroxyhexanoic acid.
In aqueous solution at delicately acidic pH, gluconic acid forms the gluconate ion. The salts of gluconic acid are known as 'gluconates'. Gluconic acid, gluconate salts, and gluconate esters occur widely in nature because such species arise from the oxidation of glucose. Some drugs are injected in the form of gluconates.
Gluconic acid is a glycolic acid in which the aldehyde group in the molecule is oxidized to a carboxyl group under the action of a weak oxidant or enzyme. Its 6-phosphate is an intermediate in the oxidative decomposition of glucose (pentose phosphate pathway) in vivo. With calcium, zinc and other metal ions into a soluble salt, as nutrients and drugs.
Gluconic acid is a crystal with weak acidity and melting point of 131℃. Gluconic acid is freely soluble in water, slightly soluble in ethanol, insoluble in ether and most other organic solvents. In aqueous solution, partial conversion to gamma and delta lactones is an equilibrium mixture. An aqueous solution tastes sour. Aqueous solution at 4% pH=1.8. As it is difficult to make into a solid, the commodity is usually a 50 per cent aqueous solution, light amber in colour, with a slight vinegar taste and a relative density of 1.2425. Sodium salt or calcium salt, reduced to arabinose under the action of peroxide, oxidized to formaldehyde, oxalic acid, glyoxylic acid under the action of HIO4. Gluconic acid is best stored in stainless steel tank.