[elodie]

@Gunther @Chemist77
Thank you very much for your tips. Really appreciate. I will follow your advices.

The soap will be no scent and 100% from coconut oil but made from Potassium (and not sodium) . And will add a portion of baking soda, and washing soda.

So the formulation will be : 40% Baking Soda, 40% chopped coconut soap, 20% Washing Soda.  Do you think I should use some Magnesium Sulfate like in Molly’s suds laundry detergent ? 

Thank you so much in advance for your help.

[elodie]

Thanks for your help. No it is not a liquid detergent. It is a powder. You are right, that most of soap flakes are hard to dissolve. Thanks for the Potassium coconut soap (Potassium cocoate)

Is there any natural “scent” that can be used instead of Essential oils ?