Green Propellants

•ISRO is developing green propellants for use in future rocket & satellite propulsion systems.
It has made a beginning by developing an eco-friendly solid propellant to eliminate the emission of chlorinated exhaust products from rocket.
•The propellants are based on Glycidyl Azide Polymer (GAP) as fuel and Ammonium Di Nitramide (ADN) as oxidizer.
•It has successfully developed ISROSENE, which is a rocket grade version of kerosene as an alternative to conventional hydrazine rocket fuel.
•It has already used Liquid oxygen and liquid hydrogen combination in cryogenic upper stage of GSLV MK-III.