Giver_Hell
(Stranger)
06-13-04 02:25
No 513052
      H3PO2 and H3PO3: How to tell which is which....     

How can one tell the difference between H3PO2 and H3PO3 if both where dilluited with water? Doesn't H3PO2 react with I2 at room temperature?
 
 
 
 
    WizardX
(Wizard Master)
06-13-04 03:46
No 513063
      Yes     

Yes, but the reaction is not fast due to the I2 solubility in solution. Give it sometime.

H3PO2 is oxidised with hot sulphuric acid forming sulphur.