Deepak Fertilisers and Petrochemicals Corporation Limited supply Dilute Nitric Acid. Deepak Fertilisers and Petrochemicals Corporation Limited is an ISO 9001:2000 and ISO 14001:2004 accredited company. Dilute Nitric Acid is used in Dyes and Dye intermediates, Drugs and Drug intermediates, Pigments, Pesticides, Fertilisers, and Explosives etc.