... toxicity, no toxicity accumulation, soluble in water, convenient in use, unaffected by water hardness. Benzalkonium Chloride can be also used ... %2.0 max2.0 max2.0 maxpH(1% water solution)6.0~8.0(origin)6.0-8 ... appeared after thrown of this product in circulating cool water, the sewage should be filtered or blown off ... visible stimulation to skin. When contacted, flush with water. Benzalkonium Chloride