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Phosphoric acid (chemical symbol: H3PO4) is a relatively weak anorganic acid that is used in food industry as a preservative, emulsifier, acidifier (for example in cola drinks), or as acidity regulator. As a food additive it has the international number E 338.

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Production of phosphoric acid

Phosphoric acid for the food industry is produced chemically from mineral phosphates or raw phosphates. Those mineral or raw phosphates are derived from mineral mining.

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