chromic
a . 含三價的鉻的,鉻的
含三價的鉻的,鉻的
Chromic \
Chro "
mic \,
a . (
Chem .)
Pertaining to ,
or obtained from ,
chromium ; --
said of the compounds of chromium in which it has its higher valence .
[
1913 Webster ]
{
Chromic acid },
an acid , {
H2CrO4 },
analogous to sulphuric acid ,
not readily obtained in the free state ,
but forming well known salts ,
many of which are colored pigments ,
as chrome yellow ,
chrome red ,
etc .
{
Chromic anhydride },
a brilliant red crystalline substance ,
{
CrO3 },
regarded as the anhydride of chromic acid .
It is one of the most powerful oxidizers known .
[
1913 Webster ]
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