Hallo,
Hier ist ein recht neuer Artikel von Randy Holmes-Farley zur Reinheit von Calciumchlorid.
Zumindest lesenswert...
Zitat"dichotomy may reflect fundamentally different manufacturing processes to arrive at calcium chloride"
ZitatCadmium, on the other hand, is known to be toxic at fairly low levels. Canadian Water Quality Guidelines for the Protection of Aquatic Life suggest a maximum of 0.12 ppb in seawater. Toxicology tests on marine organisms show toxic effects beginning in the 10-100 ppb range. Consequently, the delivery of 4 ppb (for the two Kent products) over the course of a year may be a concern. The other calcium chloride samples had significantly less cadmium.
http://www.advancedaquarist.com/issues/mar2004/chem.htm
http://reefcentral.com/forums/showthr…threadid=318191
