Products Description of Barium sulfate CAS#7727-43-7
Barium sulfate exists as odorless, tasteless solids—either white or yellowish crystals, powder, or polymorphic crystals. It is chemically stable, and either insoluble or only negligibly soluble in water. When burned, it may release sulfur oxides.
Parameters
Melting point | 1580 °C |
Boiling point | decomposes at 1580℃ [KIR78] |
bulk density | 500kg/m3 |
density | |
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 |
Product Application of Barium sulfate CAS#7727-43-7
As noted earlier, barium sulfate (BaSO₄) has medical applications: it is used as an opaque liquid medium that, when ingested, blocks X-rays. This allows for clear imaging of ulcers and intestinal issues. Beyond medicine, it is also utilized in the production of paints, rubber, and plastics.
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