Dyneema Â® SK60 is the only super-fiber with a density below 1.0 (the fiber can float on water). The specific gravity of Dyneema Â® SK60 is 0.97, which is the lowest value among super fibers and is lighter than water.
Benzalkonium chloride is a quaternary ammonium compound and is used as a preservative in many ophthalmic solutions. Typically in dilutions of 0.01% or less.lkyl triethanol ammonium chloride, benzethonium chloride, CETRIMIDE (cetyltrimethylammonium bromide), DYMED and POLYQUAD are also examples of quaternary ammonium compounds that are used in ophthalmic preparations.
Print. Quaternary ammonium compounds are a family of antimicrobial compounds that are strong cationic active agents in terms of their powerful disinfectant activity since they eliminate gram-positive and gram-negative bacteria (although the latter to a lesser degree.) They are bactericidal, fungicidal and virucidal.rint. Quaternary ammonium compounds are a family of antimicrobial compounds that are strong cationic active agents in terms of their powerful disinfectant activity since they eliminate gram-positive and gram-negative bacteria (although the latter to a lesser degree.) They are bactericidal, fungicidal and virucidal.