Barium sulfate CAS#7727-43-7
Odorless and tasteless – Suitable for applications requiring inert sensory properties.
Stable chemical nature – Ensures long-term reliability in formulations and products.
Insoluble in water – Ideal for use in applications where moisture resistance is essential.
Available in various forms – Offered as white or yellowish powder and polymorphous crystals to meet different processing needs.
Barium sulfate is found as odorless and tasteless white or yellowish crystals, powder, or polymorphic crystals. It is chemically stable and either insoluble or only slightly soluble in water. When burned, it can release sulfur oxides.
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 |
Barium sulfate (BaSO4) is utilized in medicine as an opaque liquid that blocks X-rays when ingested, helping to produce images of ulcers and intestinal issues. Additionally, it is employed in the production of paints, rubber, and plastics.
