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Physical & Chemical properties

Water solubility

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Description of key information

A TGD-approved handbook states that the notional solid structure of gluconic acid is “freely soluble in water”.

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Additional information

The information regarding the water solubility of 50% aqueous solution of gluconic acid was based on the notional solid structure and was sourced from two separate handbooks. Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals (14th Ed.) and Ullmann's Encylopedia of Industrial Chemistry (7th Ed.) report that gluconic acid is “freely soluble in water” and “soluble in water”, respectively. However, no numerical value for concentration or information on solution temperature or pH was reported in either source. Although the information from both sources is comparable, the data obtained from Ullmann’s handbook is not TGD-approved, and as such is of Klimish-4 reliability and is not considered valid.