What is the equetion when sulphur reacts with concentrated nitric acid?

Answer 1

One use Nitric acid in the production of certain explosives.

NitroGlycerine.

And one also use Sulfuric acid in order to take moisture out of the Nitroglycerine formed.

I do however not think that those acids react with each other.

I think they just mix, forming an acid that also has great dehydrating powers.

There is more information on Wikipedia about Sulfuric Acid, allso a tiny bit regarding Nitric Acid.

Be aware that both acids reacting with organic materials is highly dangerous.

There is an exothermic reaction where water is pulled out of whatever organic matereal there is. This leaves Carbon that in turn will be Nitrated by the Nitric acid. Due to the Exothermic reaction the mix will heat up rapidly and you might have an uncontrollable reaction that ultimately leads to explosion.

It is NOT something you experiment with without proper deep understanding of chemistry. Your life is at stake and so is the life of ppl around you.

Alfred Nobel (Inventor of Dynamite) had a brother who died due to an explosion of this kind, and he was well "educated".

Answer 2

For the S8 allotrope:

S + 6 HNO3 -> H2SO4 + 6 NO2 + 2 H2O

or

S + HNO3 -> H2SO4 +NO + H2O (unbalanced)

depending on whether the nitric acid is dilute or concentrated.

Please see the link.

Answer 3

The chemical symbol of sulfur is S.

The chemical formula of nitric acid is HNO3.