Sunday, November 25, 2012

Chlorine APEX Mineral

Chlorine (Cl #17) is the next element on the periodic table for my APEX mineral collection.  
Wikipedia Chlorine
Chlorine Minerals 
Most Chlorine minerals are ionic compounds (salts).
My Chlorine APEX mineral will have to be a salt even though I am trying to avoid these.  In this case, it turns out ordinary table salt (NaCl) at 61% Chlorine is by far the best choice.
Chlorine is a green gas at ambient conditions and is very reactive.  It has the highest electron affinity (releases more energy when it reacts) of any element. Sea water is 1.9% Sodium salt.  
Salt was used as early as 3000 BC and brine as early as 6000 BC
Chlorine is a critical ingredient to many industrial processes.  Chlorine compounds are often used as a disinfectant and cleaner.
Chlorine compounds are poisonous to most life forms.  

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