Correlation and Prediction of Environmental Properties of Alcohol Ethoxylate Surfactants Using the UNIFAC Method was written by Cheng, Hongyuan;Kontogeorgis, Georgios M.;Stenby, Erling H.. And the article was included in Industrial & Engineering Chemistry Research in 2005.Recommanded Product: 112-59-4 The following contents are mentioned in the article:
Environmental properties of one type of nonionic surfactants, the alc. ethoxylates (polyoxyethylene alcs.), are predicted using the UNIFAC (universal quasi-chem. functional group activity coefficient) method. Various properties are considered; the octanol-water partition coefficient (Kow), the bioconcentration factor (BCF), and the toxicity. Kow values of alc. ethoxylates are difficult to measure. Existing methods such as those in com. software like ACD,13 ClogP,14 and KowWin15 have not been applied to surfactants, and they fail for heavy alc. ethoxylates (alkyl carbon numbers above 12). Thus, the Kow values are predicted here via UNIFAC and compared to the few available exptl. data. Based on the predicted Kow values, a correlation between Kow and hydrophilic-lipophilic balance (HLB) is established because HLB is a widely used parameter in surfactant applications. Finally, BCF and toxicity of alc. ethoxylates are correlated with their Kow. The proposed approach can be extended to other families of nonionic surfactants. This study involved multiple reactions and reactants, such as 2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4Recommanded Product: 112-59-4).
2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4) belongs to ethers. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Recommanded Product: 112-59-4
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem