- Citric acid is a weak organic acid
- Chemical formula: C6H8O7
- Molar Mass: 6 C @ 12.0107 = 37.5%
8 H @ 1.00794 = 4.2%
7 O @ 15.9994 = 58.3%
Total:192.12 g/mol - Melting point: 153 °C, 426 K, 307 °F
- Boiling point: 175 °C, 448 K, 347 °F
- Density in natural state: 1.665 g/cm3
- Citric acid is also known as: 2-hydroxypropane-1,2,3-tricarboxylic acid--its structure is shown below
- Citric acid has three carboxyl or - COOH groups and is tripotic in nature. It weakly dissociates in water producing a weak acidic solution.
- The pH of a 0.1 M solution of citric acid is 2.1