2003
2003 發問於 科學及數學化學 · 1 十年前

Can potassium nitrate react with sulphuric acid?

Can potassium nitrate react with concentrated/diluted sulphuric acid?

why?

1 個解答

評分
  • E先生
    1 十年前
    最愛解答

    Definitely there will be reaction among the concentrated sulphuric acid and potassium nitrate:

    KNO3 + H2SO4 -> HNO3 + KHSO4

    You will see brown fumes of Nitric Acid vapour (with nitrogen dioxide NO2) comes out of the reacting agents and potassium hydrogen sulphate remains.

    For diluted sulphuric acid is used instead of concentrated, there will be no reaction.

    資料來源： http://en.wikipedia.org/wiki/Sulfuric_acid
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