Ursula Street, PO Box 6510 Mail Stop F-731, Aurora, CO 80045, USA. Detergent preservatives such as benzalkonium chloride (BAK) have been used for decades in many ophthalmic preparations owing to ...

Department of Chemical Engineering, Federal University of Rio Grande do Sul, 2777 Ramiro Barcelos Street, Porto Alegre, RS 90035-007, Brazil ...

This lack of barrier between thoughts, and published opinions has caused extremes in discourse, desensitizing a growing population to an ever-increasing number of topics. Before social media, opinions ...

The solution turns brown. This brown colour is the displaced bromine. The chlorine has gone to form sodium chloride.