Chemical Forums

Specialty Chemistry Forums => Citizen Chemist => Topic started by: pcm81 on September 21, 2019, 03:11:15 PM

Title: Least agressive pH up?
Post by: pcm81 on September 21, 2019, 03:11:15 PM

I am experimenting with fiber reactive dyes on leather. The basic idea is that fiber reactive dye creates covalent bonds with cellulose or similar compounds at ph=10ish.
Standard pH adjuster is the Soda Ash.
What i am finding is that oils and fats in the leather get washed out making leather stiff.
I am assuming soda ash turns oils and fats into soap causing them to wash out.
I am looking for recommendations of what i can use to raise pH o the solution to 10, yet prevent the saponofication of oils and fats found in leather.

Any advice on what products / compounds i should try?

Thanks ahead

Title: Re: Least agressive pH up?
Post by: OrganicDan96 on September 21, 2019, 05:19:34 PM

ammonia solution?