Testing anion - carbonate ion

If unknown solution given is coloured eg blue solution / green solution, and a ppt is formed on adding silver chloride or barium nitrate, make sure you allow the mixture to stand for a few minutes and observed the precipitate that settles down to the bottom of the test tube.

The white ppt would become very obvious to you.

Category:

Howto & Style

Tags:

• anion
• carbonate

[HIM666dark6light]

So you don't need to heat the test tube for the CO2 to come out?

[TheSethu1995]

Superb! thanks!

[1091Floyd21]

I did read somewhere once; something like "that since all nitrate salts are soluble in water, it is not possible to detect the presence of the nitrate ion by a precipitatiuon reaction." This does not make sense to me as tests can be performed on salts of (chlorides, sulfites, sulfates, carbonates, hydrogencarbonates), by a precipatation reactions, and all of which ARE soluble.

[chibbydude121]

Saved my ass on a CDA just now, kudos ;O

[lmaolongtime1120]

1,643 views and i'm the first to frigin comment! :| LOL! wow...... thanks for this... i completely forgot how we did this in class lol ;) that goes for the rest of them :O