Registration Dossier
Registration Dossier
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EC number: 923-835-0 | CAS number: -
Water solubility
Administrative data
Link to relevant study record(s)
Description of key information
Acetalization product between glucose and C20/22 (even numbered) alcohol” is expected to have a very low solubility as a whole; its measured water solubility is < 1 mg/l.
According to published and estimated data on the water solubility of APG C20/22 and C20/22 alcohols, the UVCB as a whole (glucosides and alcohols parts) is expected to have a very low water solubility (around 1 μg/l)
Key value for chemical safety assessment
- Water solubility:
- 1 mg/L
- at the temperature of:
- 23 °C
Additional information
Acetalization product between glucose and C20/22 (even numbered) alcohol” is expected to have a very low water solubility as a whole; its measured water solubility is < 1 mg/l.
Published data on alcohols (1) showed a very low water solubility for C18 alcohol of 0.0011 mg/l (SIDS dossier on 1-octadecanol, 1993b; Budavari, 1996). The water solubility of alcohols decreases with increase of the length of carbon chain, so the water solubility of “Alcohols block” should be reasonably around 1 μg/l.
Furthermore, low estimated values of the water solubility of C20 and C22 mono and di-glucosides were determined by EPISUITE:
- C20 monoglucoside : Log kow (KOWIN estimate) = 6.83 ; water solubility at 25°C (estimate from Log kow) = 0.001885 mg/l
- C22 monoglucoside : Log kow (KOWIN estimate) = 7.81 ; water solubility at 25°C (estimate from Log kow) = 0.0001811 mg/l
Mixture of mono C20/22 glucosides = 12.6% of the registered substance
- C20 di-glucoside : Log kow (KOWIN estimate) = 4.33 ; water solubility at 25°C (estimate from Log kow) = 0.02263 mg/l
- C22 di-glucoside : Log kow (KOWIN estimate) = 5.32 ; water solubility at 25°C (estimate from Log kow) = 0.002142 mg/l
Mixture of di C20/22 glucosides = 2% of the registered substance
So the UVCB as a whole (glucosides and alcohols parts) is expected to have a very low water solubility (around 1 μg/l)
(1) SIDS Initial Assessment Report For SIAM 22 (18 – 21 April 2006) - TOME 1: SIAR; Category Name “Long Chain Alcohols” (C6-22 primary aliphatic alcohols)
(2) EPISUITE estimations (KOCWIN v2.00): Log koc of C20 alkylmonoglucoside: 3.7 – 4.4 (Kow and MCI methods); Log koc of C22 alkylmonoglucoside: 4.2 – 4.9 (Kow and MCI methods); Log koc of C20 alkyl di-glucoside: 2.14 or 5.33 (Kow or MCI methods); Log koc of C22 alkyl di-glucoside: 2.68 or 5.85 (Kow or MCI methods)
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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