[remšak6]

First of all, in school we had Analytical exercise. We had to do some exercise of titrations. However, when I saw Methyl Orange I was suprised. (Yes, I know that Methyl Orange is pH indicator frequently used in titrations). Why suprised? Secondly, name of this substance by IUPAC numenclature is Sodium p-dimethylamino-azobenzenesulfonate. So from name of this substance is visibly to contain azo compound, N=N group. An azo compounds are explosive... I have heard Methyl Orange is explosive. Is that true? I don't think so, but I ask because I'm not sure.

Thank you.

[Alberto_Kravina]

Methyl orange is toxic, but I really don't think it is explosive

http://en.wikipedia.org/wiki/Methyl_orange

[remšak6]

It's true. I know about toxic of Methyl Orange. But I didn't know about explosion property of Methyl Orange.

Thank you.

[mdlhvn]

So from name of this substance is visibly to contain azo compound, N=N group. An azo compounds are explosive...

-------> azo compounds, containing N=N groups, are characterized for chromatic compounds, not explosive compounds. Maybe you confuse with NO2-group-containing compounds.

[remšak6]

-------> azo compounds, containing N=N groups, are characterized for chromatic compounds, not explosive compounds. Maybe you confuse with NO2-group-containing compounds.

Yes I know, never mind. However, in the IJS (Jožef Stefan Institute) I heard that is methyl orange explosive. I didn't belive for this reason I asked.

Thank you.