Nitratho

Nitratho, namakhoi kislotai nitrat HNOs. Moddahoi kristallii berang; dar hapopati muqarrari ustuvorand. Dar harorati baland bo osoni oksigeni khudro gum karda khosiyati oksidkunandagi paydo mekunand. Masalan,

2KN03 = 2KNOa + 02 N

Dar ob nagz hal meshavand. Onhoro dar natijai ba metallho, oksidho va baze namakho tasir kardani HNOs, tasiri N02 ba asosho va gayra hosil mekunand. Nitrathoi baze elementho (Na, K, Oa) dar tabiat vomekhurand, ki az onho tanho konhoi NaNOs (selitrai Chili) ahamiyati amali dorand. Nitratho hamchun nurii mi­nerali  (Nitrathoi K, Na, Sa va g.), dar istehsoli moddahoi tarkanda (Nitrathoi ammoniy, Va va gayra), hamchun tezob dar rangubori matoho (Nitrathoi Cr, Fe, A1, Si) va gayra istifoda meshavand. Nitrathoi ammoniy va metallhoi ishqoriyu ishqorzaminro selitra niz menomand.