How could you chemically identify #"phthalic acid"#, #"oxalic acid"#, and #"oxalic acid dihydrate"#?

1 Answer
anor277
Nov 11, 2017

Why make a chemical test....

Explanation:

...when you can easily take the melting points....

#"melting point,"# #"phthalic acid,"# #207# #""^@C#

#"melting point,"# #"oxalic acid,"# #189# #""^@C#

#"melting point,"# #"oxalic acid dihydrate,"# #101.5# #""^@C#

Of course, oxalic acid is a much stronger acid than phthalic acid, so you could test the acidities of an aqueous solution.....

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