Barium Sulfate is available in the form of odorless, tasteless, white or yellowish crystals, powder, or polymorphous crystals, making it a versatile compound for various industrial applications. It is highly stable and virtually insoluble, or only negligibly soluble, in water, ensuring it remains inert and non-reactive in aqueous environments.
When exposed to high temperatures, barium sulfate may produce sulfur oxides upon burning, a characteristic that should be considered in specific processes where combustion may occur. Its physical and chemical properties make it widely used in industries such as pharmaceuticals, paints, and coatings.
Parameters
Melting point | 1580 °C |
Boiling point | decomposes at 1580℃ [KIR78] |
bulk density | 500kg/m3 |
density | 4.5 |
storage temp | Storage temperature: no restrictions. |
solubility | water: insoluble |
form | powder |
color | White to yellow |
Specific Gravity | 4.5 |
Odor | wh. or ylsh. fine powd. free from grittiness, odorless, tasteless |
PH | 3.5-10.0 (100g/l, H2O, 20℃)suspension |
PH Range | 7 |
Water Solubility | 0.0022 g/L (50 ºC) |
Crystal Structure | Barite |
crystal system | Nogata |
Merck | 14,994 |
Space group | Pnma |
Solubility Product Constant (Ksp) | pKsp: 9.97 |
Lattice constant | a/nmb/nmc/nmα/oβ/oγ/oV/nm30.89090.54670.7188909090 |
Dielectric constant | 11.4（16.0℃） |
Exposure limits | ACGIH: TWA 5 mg/m3 |
Stability | Stable. |
LogP | -1.031 (est) |
CAS DataBase Reference | 7727-43-7(CAS DataBase Reference) |
EPA Substance Registry System | Barium sulfate (7727-43-7) |
Safety Information
Hazard Codes | Xn |
Risk Statements | 20/21/22-36/37/38 |
Safety Statements | 22-24/25-36-26 |
OEB | B |
OEL | TWA: 10 mg/m3 (total) |
WGK Germany | - |
RTECS | CR0600000 |
TSCA | Yes |
HS Code | 28332700 |
Hazardous Substances Data | 7727-43-7(Hazardous Substances Data) |
Toxicity | LD50 orally in Rabbit: > 20000 mg/kg |
