Registration Dossier
Registration Dossier
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EC number: 214-490-0 | CAS number: 1135-24-6
Endpoint summary
Administrative data
Description of key information
Ferulic acid is widely found in soil humus, as a result of the natural breakdown of lignin from wood/plant materials.
When released to air, an estimated vapor pressure of 3.5x10-4 Pa at 25 deg C indicates ferulic acid will exist in both the vapor and particulate phases in the atmosphere. Vapor-phase ferulic acid will be degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals; the half-life for this reaction in air is estimated to be 8 hours.
When released to soil, ferulic acid is expected to have high mobility based upon an estimated Koc of 57. The pKa of ferulic acid is 4.58, indicating that this compound will almost entirely exist in anion form. Anions generally do not adsorb more strongly to soils containing organic carbon and clay than their neutral counterparts. Volatilization from moist soil surfaces is not expected to be an important fate process because ferulic acid exists as an anion and anions do not volatilize. Ferulic acid is not expected to volatize from dry soil surfaces based upon an estimated vapor pressure of 3.5X10 -4 Pa.
Ferulic acid undergoes 71% to -77% aerobic biodegradation in soil under neutral or acidic conditions over 28 days. Under alkaline conditions, ferulic acid undergoes 13% aerobic biodegradation over 28 days.
When released into water, ferulic acid is not expected to adsorb to suspended solids and sediment based upon the estimated Koc of 57. Ferulic acid undergoes 86-98% anaerobic biodegradation in water over 9-24 days. A pKa of 4.58 indicates ferulic acid will exist almost entirely exist in the anion form at pH values of 5 to 9 and therefore volatilization from water surfaces is not expected to be an important fate process. An estimated BCF of 3.2 suggests the potential for bioconcentration in aquatic organisms is low. Hydrolysis is not expected to be an important environmental fate process since this compound lacks functional groups that hydrolyze under environmental conditions.
Additional information
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