Anidride solforica SO3

Bex78

Senior Member
Italian - Italy
Ciao!
Sempre alle prese con il mio concime e ai miei dubbi in chimica!
Anidride solforica SO3:
- sulphur/sulphuric oxide
- sulphur/sulphuric dioxide
- sulphur/sulphuric trioxide
- sulphur/sulphuric anhydride

E' possibile che sulphur/sulphuric anhydride sia la trauzione più "generica" senza entrare nel merio di SO2 o SO3?

Molte grazie!

Benedetta
 
  • Einstein

    Senior Member
    UK, English
    Sulphuric acid = H2SO4. If you subtract water (H20) you get sulphuric anhydride, SO3, also called sulphur trioxide.
    Sulphurous acid = H2SO3. If you subtract water you get sulphurous anhydride, SO2, also called sulphur dioxide.

    The salts of sulphuric acid are called sulphates.
    The salts of sulphurous acid are called sulphites.

    The nomenclature is similar in Italian.
     

    elemika

    Senior Member
    Russian
    Sulphuric acid = H2SO4. If you subtract water (H20) you get sulphuric anhydride, SO3, also called sulphur trioxide.
    Sulphurous acid = H2SO3. If you subtract water you get sulphurous anhydride, SO2, also called sulphur dioxide.

    The salts of sulphuric acid are called sulphates.
    The salts of sulphurous acid are called sulphites.

    The nomenclature is similar in Italian.

    :thumbsup::thumbsup:
    And it's a common way to express the sulphates content in the fertilizers as % of sulfur trioxide, for example here:

    5% SO3 sulfur trioxide in the form of water-soluble sulphates
     
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