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EC number: 281-897-8
CAS number: 84057-80-7
Propionic acid is readily biodegradable (according to OECD criteria).
The evaluation of the
biodegradability of propionic acid can be derived from different
Propionic acid was evaluated using a standard manometric technique
(Warburg Respirometer). The biodegradation after 30 days was 74% (BOD of
ThOD) [Dias & Alexander, 1971]. Malaney & Gerhold (1969) used the
Warburg Respirometer technique to assess the aerobic biodegradation of
propionic acid over a 24-hour interval with activated sludge solids.
Biodegradation after 24 hours was 40.4% (BOD of ThOD). Anaerobic
biodegradation of propionic acid was evaluated in an acetate-enriched
from domestic sewage sludge and added to Hungate serum bottles. There
was 100% biodegradation measured after 20 days [Chou & al., 1978].
available data it can be concluded that propionic acid is readily
biodegraded under aerobic and anaerobic conditions [OECD SIDS, 2007].
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