Commodity Code

fluorine

http://resource.geosciml.org/classifier/cgi/commodity-code/fluorine

definition Fluorine is an extremely reactive and poisonous chemical element with atomic number 9. The lightest halogen and most electronegative element, it exists as a pale yellow diatomic gas at standard conditions. Almost all other elements, including some noble gases, form compounds with fluorine. more like this
notation
02.03.02 more like this
F more like this
source http://en.wikipedia.org/wiki/Fluorine more like this
type
Resource
Concept
broader non metal
narrower fluorine
in scheme commodity code
is primary topic of fluorine