I have prepared Bismuth ferrite powder using conventional sol-gel route and using tartaric acid as solvent. However, there are a few impurity phases. Can anyone tell me how to remove them through leaching with nitric acid?
I also have the same doubt and thank you Rekha Gupta mam for your answer. But I have one more doubt. How can I fix the proportion of nitric acid solution and sample quantity? How much sample I can wash with 0.05N HNO3?