pH of non aqueous formulations - Chemists Corner

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pH of non aqueous formulations

Posted by Oladoo on July 25, 2020 at 2:18 pm

Hi.
Can pH of non aqueous samples such as balm be tested?

Oladoo replied 3 years, 9 months ago 4 Members · 4 Replies
4 Replies

ngarayeva001

Member
July 25, 2020 at 5:37 pm

H in pH corresponds to hydrogen. No water no pH. Citric acid has no ph until diluted with water. Speaking of balms, they are oil based.
Pharma

Member
July 25, 2020 at 5:41 pm

pH in sensu stricto requires water. There are means (you don’t have) which allow pH determination in non-aqueous solutions.

Can you test pH in anhydrous products? Yes, sure you can test… the result will simply be arbitrary or reflect pH of a molecularly fine layer of moisture covering the electrode.
Thota

Member
July 25, 2020 at 6:02 pm

Are you talking about cleansing balm where more ingredients can be added?
I think u are trying to understand what ph will it be when applied on damp skin?
May be test by dissolving it in water.

If its purely lipids then dont worry about pH
Oladoo

Member
July 26, 2020 at 9:15 am

Thank you all. The information you provided make it more clear

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