Physical properties:
Odour:
Colour:
Aspect:
Reaction with litmus paper:
Chemical properties:
test observation comment
Biuret’s test
No violet colour
The solution is not protein
Molish’s test
No violet ring separate by the shaking
The solution is not carbohydrate
Test with litmus paper
No change on both side of litmus paper
The solution is urea
Efferversence’s test
Marked efferversence
Evaluation of nitrogen gas bubble
CO(NH2)2+3NaOBr+2NaOH= N2+3H2O+Na2 CO3
Conclusion:
The solution is urea
