Home Cosmetic Science Talk Formulating Does ALS release ammonia if the pH is >7 for 1 or 2 hours during manufacturing?

  • Does ALS release ammonia if the pH is >7 for 1 or 2 hours during manufacturing?

    Posted by Abdullah on June 20, 2021 at 6:49 am

    We use ALS in our Shampoo and also cationic guar gum, HPMC and regular guar gum. These ingredients need to increase the pH of formula for an hour or two above pH 7, around pH 9 in order to hydrate easily because Shampoo is cold process.

    Does ammonium lauryl sulfate release ammonia or decompose if it’s pH is higher than 7 for 1 or 2 hours during manufacturing Shampoo? 

    Abdullah replied 2 years, 11 months ago 2 Members · 2 Replies
  • 2 Replies
  • chemicalmatt

    Member
    June 24, 2021 at 6:52 pm

    Affirmative. It releases ammonia even at RT if the pH is left higher than 8.

  • Abdullah

    Member
    June 25, 2021 at 3:26 am

    @chemicalmatt thanks. I wanted to add surfactants first and then guar gum and cationic guar gum. It was more convenient this way. So now i should add ALS after adding guar gums and adjusting there pH. 

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