Our powder is a form of carbon that has been activated produced with the use of pure pine wood that serves as an excellent base for manufacturing activated carbons with good adsorption power. The steam activated process is done by activating the charcoal in a rotary kiln by heating under elevated heat conditions by steam. The enhanced carbon material that comes out from the kiln is called unwashed activated carbon. These unwashed activated carbon has higher ash and iron content. This is reduced by washing the unwashed activated carbon with acid hcl / h2so4 and purified water. This results in reduction of ash content to Prices beginning from 1% and iron as low as 50 ppm. The gradation of different qualities of activated carbon is performed on the cornerstone of methylene blue value and iodine value. The value of iodine content is a better test as the dimensions of the particles of iodine molecule is small enough to penetrate the tiniest of pores detailed technical outline of steam activated carbon unwashed grade properties grade dc, 15 dc, 21 dc, 31 dc, 41 methylene blue value min mg/gm 150 200 250 300 iodine value min mg/gm 500 600 750 900 moisture % max 5 5 5 5 ph 9 9 9 9 ash % max 15 15 15 15 iron ppm max 500 500 500 500 acid soluble matter % 10 10 10 10 water soluble matter % 7 7 5 5 particle size through 200 mesh % 90 90 90 90 technical specification of activated carbon acid washed properties grade dcw, 21 dcw, 31 dcw, 41 dcw, 51 methylene blue value min mg/gm 220 250 300 350 iodine value min mg/gm 600 750 900 1050 moisture % max 5 5 5 5 ash % max 4 3. 5 1. 5 1. 25 iron ppm max 200 200 100 70 ph 6. 5, 7. 5 6. 5, 7. 5 6. 5, 7. 5 6. 5, 7. 5 chlorides ppm max 1800 1800 1300 1000 sulphate ppm max 700 700 400 300 acid soluble matter % 2 1 0. 5 0. 5 water soluble matter % 1. 5 0. 8 0. 2 0. 1 parctical size through 200 mesh % 90 90 90 90