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EC number: 201-067-0
CAS number: 77-90-7
The soil sorption
coefficient Koc of tributyl acetylcitrate was determined using the HPLC
method (OECD 121, EC C.19). The resulting log Koc was 4.271, i.e. Koc =
18664 L/kg. According to the classification scheme of Blume & Ahlsdorf
(1993), tributyl acetylcitrate shows a high (log Kow method) to very
high sorption onto soil organic matter.
Henry's Law constant
Henry's Law constant of
tributyl acetylcitrate was calculated using EPIWIN (v4.0), HENRYWIN
(v3.20). The calculation of Henry's Law constant according to the
equation H=vp/ws yielded a value of 4.434 Pa x m³/mole using a measured
water solubility of 4.49 mg/L and a vapour pressure of 0.000371 mm Hg.
Based on the result, tributyl acetylcitrate can be considered to be
moderately volatile from aqueous solution.
distribution of tributyl acetylcitrate was calculated according to
Mackay Level I (v3.00). The substance is about equally distributed to
air (16.1%); water (10.5%), soil (37.9%) and sediment (35.4%); the
distribution to the other compartments (fish, aerosol, suspended
particles) is negligible.
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