While tartaric acid has the characteristics of a general purpose acid, fluctuating availability and price have caused users to reformulate where possible. Tartaric acid is a dibasic dihydroxy acid. The product is a white odorless granule or powder that has a tart taste and a slight characteristic flavor of its own. The properties of tartaric acid are listed in Table 1.
Molecular weight Melting point, °C
Solubility at 25°C (g/100 mL of water) Caloric value, kcal/g
Hygroscopicity (Resistance to moisture pick up) At 66% RH At 86% RH Ionization constants
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