Appearance: White to pale yellow/brown powder ; White hygroscopic crystalline powder ; White or gray, odorless lumps or granular powder.
HgS – Mercury sulfide
Other names: Cinnabar, Vermilion, Mercury(II) sulfide
Products:
CaS – Calcium sulfide
Other names: Calcium monosulfide, Hepar calcies, Sulfurated lime, Oldhamite
Appearance: White crystals | hygroscopic
CaSO4
Names: Calcium sulfate, Plaster of Paris, DrieriteGypsum, Calcium sulfate (anhydrous), Anhydrous calcium sulfate, Anhydrous gypsum, Anhydrous sulfate of lime, Calcium salt of sulfuric acid, CaSO4, Calcium sulphate, Calcium sulfate anhydrous, Sulfuric acid, calcium salt (1:1), [Note: Gypsum is the dihydrate form and Plaster of Paris is the hemihydrate form.]
Appearance: White solid ; White hygroscopic powder or crystalline powder ; Odorless, white powder or colorless, crystalline solid. [Note: May have blue, gray, or reddish tinge.]
Hg
Names: Mercury, Hg, QuicksilverHydrargyrum, Element 80, Liquid silver
Appearance: Odourless heavy mobile silvery liquid metal