Products Description
This product exists as odourless, tasteless white or pale yellow polymorphous orthorhombic crystals and fine powder. It features outstanding chemical stability under normal ambient storage conditions.
- Thermal property: Melting point reaches 1580°C; it decomposes above 1600°C and will not boil before decomposition
- Density: 4.49 g/cm³ at 20°C
- Solubility: Practically insoluble in water, ethanol and dilute acids; only dissolves in hot concentrated sulfuric acid
- Hazardous decomposition: When burned at high temperature, it will release toxic sulfur oxide gases
- Auxiliary indicators: pH value of 5% aqueous suspension ranges from 6.5 to 8.5; moisture content ≤0.3%; refractive index 1.64
- Reactivity note: It may trigger violent reactions when mixed with aluminum under high heat
Product 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 OSHA: TWA 15 mg/m3; TWA 5 mg/m3 NIOSH: TWA 10 mg/m3; 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 and Delivery
Main Application Fields
Medical Diagnosis Industry
Barium sulfate serves as a classic X-ray opaque contrast medium. After oral intake, it can block X-ray transmission and form clear radiographic images of gastrointestinal tracts, supporting medical diagnosis of gastric ulcers, intestinal lesions and other digestive tract illnesses.
Coatings & Printing Ink Industry
It acts as a high-performance filler and extender pigment for various architectural paints, industrial coatings and printing inks, improving covering power, surface gloss and weather resistance of finished products while lowering production costs.
Rubber & Plastic Processing Industry
It is a vital inorganic filler for natural rubber, synthetic rubber and plastic products, boosting material hardness, wear resistance, dimensional stability and radiation shielding performance.
Other Widely Used Scenarios
It can be applied as weighting agent for oil and gas drilling mud, coating filler for papermaking, raw material for ceramics, matte filler for cosmetics, and functional additive for radiation shielding composite materials.
FAQ 1: Can I request free test samples of barium sulfate from your company?
Answer: Yes, we support sample provision for laboratory quality testing. You can contact our sales staff via WhatsApp or official email to put forward sample requirements. We can also supply customized samples with specified particle size and purity according to your testing standards.
FAQ 2: What makes Hualu Hengsheng a reliable supplier of barium sulfate?
Answer: We are an integrated manufacturer and chemical trader with self-owned factories, which is fully displayed on our official website https://www.hlhschem.com. We implement strict batch-by-batch quality inspection to guarantee stable product quality, maintain continuous spot inventory to shorten delivery lead time, offer factory-direct prices without markup from middlemen, and provide comprehensive logistics, customs clearance and after-sales technical consulting services for overseas customers.
