why is nitric acid although a strong acid is not used as a standard acid?

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why is nitric acid although a strong acid is not used as a standard acid?

2007-05-27 02:25:21 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

3 answers

Actuall I think that stability is the issue here. Nitric acid can slowly decompose, so that the concentration of the label does not match what you actually have in the bottle.

Acid standards are usually potassium hydrogen pthalate, a standard the is very stable over time.

2007-05-27 03:08:51 · answer #1 · answered by Top Gun 3 · 0⤊ 0⤋

Because it's a much more powerful oxidising agent than either of HCl or H2SO4.

2007-05-27 09:36:31 · answer #2 · answered by Gervald F 7 · 0⤊ 0⤋

Nitrate salts also can be very reactive, so using HCL/H2SO4 tends to be safer.

2007-05-27 10:27:15 · answer #3 · answered by Simon 2 · 0⤊ 0⤋