Water Soluble Reverse Osmosis Biocide is used to remove all kinds of biological fouling in RO membrane systems and restore their functional efficiency. The Biocide is available with 10. 5 to 11.0 pH value. The Biocide is available in clear, colourless, homogeneous liquid form. Water Soluble Reverse Osmosis Biocide has 1. 20 +/- 0. 05 specific gravity.