CELPHOS is a solid fumigant made up of aluminium phosphide, ammonium salts and special binding agents like paraffin wax, which are pressed together into hard tablets (3 g) and pellets (0.6 g). Within Â½-4 hours after exposure to air, depending on temperature and humidity, CELPHOS tablets/pellets decompose and release phosphine gas. This gas has excellent insecticidal efficacy, is highly volatile, diffuses evenly and quickly in all directions and easily penetrates packing material such as paper or cardboard; controlling storage pests in all their stages of development, namely, eggs, larvae, pupae and adult stage. CELPHOS is equally toxic to various burrow pests like rodents, crabs, snakes, etc.PACKAGING Domestic:a) 10 tablets of 3 gm each in Aluminium tubes x 16 tubes x 1 tin= 480 gm.b) 20 tablets of 3 gm each in Aluminium tubes x 16 tubes x 1 tin =960 gm.c) 1 Kg. tablets of 3 gm each in Aluminium bottles.