[Sidenote: Sources of chlorin]
Chlorin, though widely distributed in nature, does not occur in very
large quantities as compared with oxygen and hydrogen. It is found
chiefly in combination with the element sodium, as common salt or sodium
chlorid, which is represented by the symbol NaCl.
[Sidenote: Properties of chlorin]
Chlorin is a greenish-yellow gas. It has a disagreeable smell and
acts upon the passages of the throat and nose, causing irritation and
inflammation. The feeling produced is much like that of a cold in the
head. Inhaled in concentrated form, that is, not diluted with a great
deal of air, it would cause death. It is much heavier than air, combines
readily with other substances, and possesses the property of bleaching
or destroying colors.