Citric acid. Molecular model of citric acid (C6.H8.O7), a weak organic acid found in citrus fruits. It is used mainly as an acidifier, as a flavouring and as a chelating agent. Atoms are represented as spheres and are colour-coded: carbon (grey), hydrogen (white) and oxygen (red). Illustration. | |
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Crédit: | Science Photo Library / Laguna Design |
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