Citric acid is a weak organic acid used to add sour flavor, preserve food, remove hard water stains, and balance product pH. As a chelating agent—a substance that bonds tightly to metal ions—it effectively neutralizes minerals to dissolve rust, lime, and scale without scrubbing.
Chemical name: Citric acid
CAS No. : 77-92-9
Molecular formula: C6H8O7
Appearance: White grit
Storage in a cool place ideal 2-8C.
Typical Properties
| Melting point | 153-159 °C (lit.) |
| Boiling point | 248.08°C (rough estimate) |
| Density | 1.67 g/cm3 at 20 °C |
| Refractive index | 1.493~1.509 |
| Color | White |
| Appearance | grit |
| Solubility | Citric acid also dissolves in absolute (anhydrous) ethanol (76 parts of citric acid per 100 parts of ethanol) at 15 °C. |
| Vapor Pressure | <0.1 hPa (20 °C) |
Recenzije
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