Nizomiy nomidagi tdpu tabiiy fanlar fakulteti

Pirosulfit kislotasining tuzlari. Agar sulfit kislotasidan suv tortib olinsa pirosulfitlat hosil bo’ladi:

2H₂SO₃=H₂S₂O₅+H₂O

H₂S₂O₅ tarkibli kislota erkin holda mavjud emas, lekin uning tuzlari bor.

Pirosulfatrlar gidrosulfitlardan   suvni tortib olish orqali olinadi:

 

K – O – S – O – H + H – O – S – O – K ↔ K – O – S – O – S – O – K

             ║                               ║                                  ║           ║

             O                               O                                  O           O

                                                                                        K₂S₂O₅  

K₂S₂O₅ + H₂SO₄ = H₂S₂O₅ + K₂SO₄

    Tion kislotalar- H₂S₂O₄. Sulfanil va sulfit kislotalarining o’zaro ta’siridan tion kislotalari, masalan, dition kislotasi hosil bo’ladi:

 H – O – S – O – H+H – O – S – O – H↔H – O – S – O – S – O – H+H₂O

                                              ║                                             ║

                                              O                                             O

Dition (H₂S₂O₄) kislota ham erkin holda olinmagan, lekin tuzlar holiday uchraydi: Na₂S₂O₄-natriy ditionat.