dank U wel Erik de Jong, ik zou het zelf niet mooier hebben kunnen zeggen....
voor degenen die wel het Engels of Amerikaans of Australisch machtig zijn:
van
http://www.ehow.com/about_6459060_difference-liquid-bleach-pool-chlorine.html
Clarifying Terms
Calling sodium hypochlorite "liquid chlorine" is technically a misnomer. True chlorine (Cl2) is a gas. It kills germs, but it is heavy and impractical. Most pool owners use "chlorine" in a more convenient form, such as calcium hypochlorite (CaOCl2) or lithium hypochlorite (LiOCl). For convenience sake, the pool industry refers to all chlorine-based pool sanitizers as "chlorine."
Concentration
The most important difference between bleach and liquid chlorine is their concentration. According to the United States Environmental Protection Agency, bleach is a 5.25 percent sodium hypochlortite solution. That means that approximately 94.75 percent of that bottle you bought from the supermarket is some other chemical, probably just water. Liquid chlorine, on the other hand, is somewhere between 10 percent and 15 percent, according to Purdue University, making it at least twice as potent as bleach.
Ofwel: in de engelssprekende wereld gaat de term Chlorine natuurlijk niet over het gas CL2, als het om huishoudproducten gaat.....