Home Cosmetic Science Talk Formulating Emulsions

  • Emulsions

    Posted by mehrzadkia on January 20, 2019 at 5:56 am

    Hello everyone,
    Is this statement correct?
    The type of an emulsion (w/o or o/w) is determined by the type of the emulsifier (and its solubility in a certain phase), not the ratio of the hydrophile and lipophile compounds in the emulsion. 
    Thank you.

    Doreen replied 5 years, 9 months ago 3 Members · 5 Replies
  • 5 Replies
  • Doreen

    Member
    January 20, 2019 at 1:57 pm

    The most valuable information I’ve found on emulsions, written by @Bill_Toge , you can read it in this link:
    https://chemistscorner.com/cosmeticsciencetalk/discussion/3005/emulsions-setting-the-record-straight
    It will answer your question and more!

  • mehrzadkia

    Member
    January 21, 2019 at 7:42 am

    Doreen said:

    The most valuable information I’ve found on emulsions, written by @Bill_Toge , you can read it in this link:
    https://chemistscorner.com/cosmeticsciencetalk/discussion/3005/emulsions-setting-the-record-straight
    It will answer your question and more!

    I’m glad I asked this question. A very informative click!  :)🙂
    Thank you so much for sharing this.

  • em88

    Member
    January 21, 2019 at 8:03 am

    Hello everyone,
    Is this statement correct?
    The type of an emulsion (w/o or o/w) is determined by the type of the emulsifier (and its solubility in a certain phase), not the ratio of the hydrophile and lipophile compounds in the emulsion. 
    Thank you.

    Well, it is correct. The type of an emulsifier indicates its solubility, so I would remove the “and” in the parentheses.
    Regarding the ratio of hydrophile and lipophile in the emulsion, technically it isn’t a criteria to determine the type of emulsion, but in most of cases it suggests the type of emulsion. 

  • mehrzadkia

    Member
    January 23, 2019 at 10:17 am

    em88 said:

    Hello everyone,
    Is this statement correct?
    The type of an emulsion (w/o or o/w) is determined by the type of the emulsifier (and its solubility in a certain phase), not the ratio of the hydrophile and lipophile compounds in the emulsion. 
    Thank you.

    Well, it is correct. The type of an emulsifier indicates its solubility, so I would remove the “and” in the parentheses.
    Regarding the ratio of hydrophile and lipophile in the emulsion, technically it isn’t a criteria to determine the type of emulsion, but in most of cases it suggests the type of emulsion. 

    Thank you so much for the clarification.

  • Doreen

    Member
    January 23, 2019 at 2:00 pm

    @mehrzadkia
    You’re welcome! :-)

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