Sell Gluconolactone

Description

(1) this product in water solution water decomposition, generating glucose slowly, so that the original feel acid sweetness, later a slightly acid. This product 1g is soluble in water, soluble in 1.7 mL *0mL ethanol, almost insoluble in ether. (2) this product solution at room temperature, water after about put 2h *5 ~ *0% of forming decomposition glucose sour and *0 to *5 percent of lactone mixture solution. This product solution (***0) the pH value is modulated 3.2, 2h pH value into 2.3 within. (3) the color of a glucose sour iron. (4) made with benzene hydrazine reaction of glucose sour hydrazine crystallization, can according to identify the melting point of crystallization hydrazine time too long, benzene, occurred Browning, so use the distillation colorless content, the crystallization of colorless. (5) this product solution is not stable, began adding water rapid decomposition, then the process slow, into the delta - D - lactone, gamma - D - lactone, D - glucose sour mixture balance solution.