• Formulating

  Why this formula become cloudy after 100x dilution?

  Posted by Abdullah on June 22, 2025 at 10:58 pm

  This is a liquid laundry detergent formula

  4% SLS

  4% SLE2S

  4% STPP

  2% sodium hydroxide

  Water

  It is a clear liquid with good viscosity.

  When i dilute it with 100x filtered soft water, it is still clear.

  When i dilute it with 100x very hard water,(TDS 1200) it becomes hazy with some precipitation after one day.

  pH after dilution is 10.

  Question:

  1. What is the problem? Salting or deactivation of SLS by hard water?

  2. What can i do to improve it?

  Abdullah replied 2 hours, 4 minutes ago 1 Member · 0 Replies
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