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Chemistry
Bis-PEG-8 vs. PEG-8 Dimethicone
Posted: June 3, 2008
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FIgure 1. Original name: Dimethicone copolyol intermediate; Name: PEG-8 dimethicone; New name: PEG-8 dimethicone
Figure 2. Original name: Dimethicone copolyol intermediate; Name: PEG-8 dimethicone; New name: bis-PEG-8 dimethicone
While the new name does provide more information, it cannot be used for determination of critical information like water solubility since the values of “a”, “b” and “c” (see Figure 1) are not disclosed, and these taken together with the number of moles of PEG or PPG allow for the determination of such properties.
