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EC number: 221-146-3 | CAS number: 3012-65-5
Citric acid is a natural substance that appears as an intermediate in the basic physiological citric acid or Krebs cycle in every eukaryote cell (which breaks down glucose through glycolysis). According to the OECD SIAR (2001), „due to its physico -chemical characteristics citric acid is highly mobile in the environment and will partition to the aquatic compartment. Citric acid is rapidly degraded in both sewage works and surface waters and in soil. Citric acid is of low acute toxicity to freshwater fish, daphnia and algae and also to the few marine species tested; longer -term tests show comparable effect values. Similarly, citric acid has no obvious toxic potential against protozoans and many specie s or strains of bacteria including activated sludge micro-organisms. Based on the available data, citric acid is not judged to be a substance that presents a hazard to the environment“.
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