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Chemistry: Chemical Test for Hydroxide Ions

Hi there,
Does anyone know the chemical test for hydroxide ions?

Many Thanks
Samuel
Sorry you've not had any responses about this. :frown: Are you sure you've posted in the right place? :smile: Here's a link to our subject forum which should help get you more responses if you post there. :redface:


Just quoting in Fox Corner so she can move the thread if needed :wizard:

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Reply 2
Avatar for Luca19
Luca19
10
Original post by SamLopezF
Hi there,
Does anyone know the chemical test for hydroxide ions?

Many Thanks
Samuel


Add an acid - the test tube will become warm.

OR

Turns damp red litmus paper blue.
Reply 3
Avatar for Pigster
Pigster
20
I'd add ammonium chloride and warm, then check whether ammonia was given off.

Probably best to check for other sources of hydroxide ions first, though. This means, I suspect, that it'd be a process of elimination.

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