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Many chemicals play an important role in biochemical pathways. Lactic acid is one of these biochemical compounds. It is a liquid and colorless organic compound
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Lactic Acid Many chemicals play an important role in biochemical pathways. Lactic acid is one of these biochemical compounds. It is a liquid and colorless organic compound. Its molecular formula is C3H6O3 and loses its H+ of carboxyl group in solution. So in biological condition, it exits as lactate. 1. Physical properties. The molecular formula of Lactic acid is C3H6O3 and its structural formula is CH3CHOHCOOH. So its systematic name is 2-hydroxypropanoic acid. Lactic acid has mirror image, so we divide them as L-lactic acid and D-lactic acid and call them as 1'Enantiomers'. (Figure 1) Figure 1 Stereorepresentations of lactic acid and its mirror image. [William H. Brown, Christopher S.Foote. Organic chemistry third ed; 104] 2The Molecular weight of this is 90.09. Boiling point of lactic acid is 122°C and melting point is 16.8°C. Its vapor pressure is 0.015mmHg at 25°C and heat of vaporization is 54.0 kJ/mole. The...
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