Question

what is the material used in the semipermeable membrane in the desalination of sea water in reverse osmosis

Answer 1

Dear Student,
The semi-permeable membrane used during reverse osmosis are made of cellulose acetate or aromatic polyamide.
The membranes are made in form of thin sheets deposited on the surface of polysulphone which in turn is kept on the fabric sheet.This setup gives desirable results.
Regards!