# Colours of some mercuric compounds

1. Apr 29, 2015

### mooncrater

1. The problem statement, all variables and given/known data
While reading my text book I found that $Hg(NH_2)Cl.Hg$ was given of black colour , whereas $Hg(NH_2)Cl$ of white colour.So is this correct?

2. Relevant equations
None

3. The attempt at a solution
I googled about $Hg(NH_2)Cl$ . It is $white$ in colour . But I am not sure about $Hg(NH_2)Cl.Hg$.

2. Apr 30, 2015

### Staff: Mentor

Some mercury compounds are gray because of the presence of metallic mercury, perhaps thats this kind of situation.