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[SOLVED] Difference between caustic soda and caustic potash

Dhamnekar Winod

Active member
Nov 17, 2018
I read the chemical formula for Potassium Hydroxide (Caustic soda)=NaOH (1)

I also read the chemical formula for caustic potash having same chemical name Potassium Hydroxide =KOH.

I want to know what is the difference between these two chemical compounds in terms atoms, molecules, ions?

Why the name of (1) is not Sodium Hydroxide as it contains sodium(Na)?

Klaas van Aarsen

MHB Seeker
Staff member
Mar 5, 2012
It looks like a typo in your book. The name of $\ce{NaOH}$ is indeed Sodium Hydroxide, also known as lye and caustic soda.