Lithopone

Lithopone
Names
	Other names Barium zinc sulfate sulfide, Enamel White, Pigment white 5, CI Pigment white 5, Barium zinc sulfate, Barium zinc sulfide, Lithopone B301, ZNS 28-30%, Lithopone 28-30%, LithoponeB311, Zinc sulfide, Barium sulfate Mixture, Pigment White 5 (77115), Becton White, Charlton White, Zincolith
Identifiers
CAS Number	1345-05-7;
ChemSpider	27472957;
ECHA InfoCard	100.014.286
EC Number	215-715-5;
PubChem CID	56846444;
CompTox Dashboard (EPA)	DTXSID40892168 ;
Properties
Chemical formula	BaSO4·ZnS
Molar mass	330.80 g/mol
Appearance	White powder
Odor	odorless
Density	Approx. 4.36 g/mL
Melting point	ZnS > 1,180 °C ; BaSO4 > 1,350 °C
Solubility in water	Insoluble
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H302, H332
Precautionary statements	P261, P264, P270, P271, P301+P312, P304+P312, P304+P340, P312, P330, P501
NFPA 704 (fire diamond)	1 0 1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Lithopone, C.I. Pigment White 5, is a mixture of inorganic compounds, widely used as a white pigment powder. It is composed of a mixture of barium sulfate and zinc sulfide. These insoluble compounds blend well with organic compounds and confer opacity. It was made popular by the cheap production costs, greater coverage. Related white pigments include titanium dioxide, zinc oxide ("zinc white"), zinc sulfide, and white lead.