Calcium hydrogen sulfide?

Answer:
Calcium Hydroxide is "slaked lime" Calcium Sulphate is "Plaster of Paris"
Calcium Hydrogen Sulfite is also called "calcium bisulfite" and is a food preservative
I find few references on the internet for "calcium hydrogen sulfide".
First answer by GregorS. Last edit by GregorS. Contributor trust: 293 [recommend contributor recommended]. Question popularity: 0 [recommend question].