how do you prepare lassaigne's filtrate?
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
Plunge the red hot tube into a china dish containing distilled water. Crush the contents with a glass rod and heat to boiling point. Stop heating and remove the insoluble matter by filtration. The filtrate is called Lassaigne's Extract.
Preparation of Lassaigne's Extract:
A small pellet of metallic sodium together with a little of the substance is heated to red hot in an ignition tube. It is then suddenly plunged into about 10ml of distilled water in a china dish. The mixture is boiled well and filtered.
Hope it helps you