Also known as sodium citrate, chemical name: sodium 2-hydroxypropane-1,2,3-tricarboxylate dihydrate; colorless crystals or white crystalline powder; odorless; slightly deliquescent in moist air, efflorescent in hot air. Easily soluble in water, insoluble in ethanol, stable at room temperature, loses its water of crystallization at 150°C to become anhydrous.
Also known as sodium benzoate, chemical name: sodium benzoate. It is a white granular, powder or crystalline powder; odorless or slightly odorous, with a slightly sweet and salty taste. It is easily soluble in water and slightly soluble in ethanol.
Chemical name: 1,2,3-propanetriol or propane-1,2,3-triol. It is a colorless, clear, viscous liquid; sweet taste; hygroscopic; aqueous solution (1→10) shows neutral reaction. It is miscible with water or ethanol in any proportion, slightly soluble in acetone, and insoluble in chloroform or ether.
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