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Barium Sulphate Extra pure
Original price was: $ 18.00.$ 17.76Current price is: $ 17.76.
Barium Sulphate Extra Pure is a high-purity, white, odorless crystalline powder known for its extreme insolubility in water and chemical inertness, making it highly useful in laboratory settings for qualitative analysis and gravimetric determinations. It is commonly employed in the detection and quantification of sulfate ions through precipitation reactions, as well as in studies involving solubility equilibria and surface chemistry. Its high density and stability also make it valuable in preparing calibration standards and radiopaque materials in research. The extra pure grade ensures minimal contamination, providing consistent and reliable results in sensitive analytical procedures. It should be stored in a dry, tightly sealed container to maintain its quality and prevent contamination.
Barium Sulphate Extra pure
Primary Uses
- Standard in Gravimetric Sulfate Analysis
- Barium sulphate is the precipitate formed in classic gravimetric determination of sulfate ions (SO₄²⁻) — this is one of the most precise methods in quantitative inorganic analysis.
- Reference Material for Instrument Calibration
- Due to its well-defined physical and optical properties, it’s used in X-ray diffraction (XRD) and infrared spectroscopy (IR) as a standard for calibration or sample matrix.
- Filler in KBr/IR Pellets for Spectroscopy
- Finely powdered BaSO₄ is used as a diluent or matrix for preparing solid samples in Fourier-transform infrared spectroscopy (FTIR) due to its minimal absorption in the IR range.
- Control Substance in Solubility and Ksp Studies
- As a model compound with very low solubility, it is widely used in experiments dealing with solubility product (Ksp) calculations and equilibrium demonstrations.
- Indicator of Sulfate in Qualitative Analysis
- Used to visually confirm the presence of SO₄²⁻ ions when Ba²⁺ solution is added — an essential part of classical qualitative group analysis.
Secondary Uses
- Demonstration of Precipitation Reactions
- An effective visual tool to teach double displacement reactions and concepts of ionic solubility in educational labs.
- Simulation of Radiodense Compounds (Non-medical Use)
- Used in research simulations that mimic radiodense behavior in imaging, though not used for clinical contrast media (those are pharma-grade and specially treated).
- Study of Particle Size and Crystallinity
- Its uniformity and low solubility make it useful in morphology studies using light scattering, microscopy, or sedimentation.
- Component in Laboratory Ceramic Research
- Sometimes used in experimental ceramic/glass formulations to study refractory behavior and phase stability.
- Environmental Chemistry Experiments
- Useful in remediation studies to simulate precipitation-based removal of sulfates or heavy metals from contaminated water systems.
| PACK SIZE | 500 grams Plastic Tin |
|---|
1. Basic Identification Attributes
- Chemical Name: Barium Sulphate
- CAS Number: 7727-43-7
- HS Code: 28332700 (Sulphates: of Barium)
- Molecular Formula: BaSO₄
- Synonyms:
- Baryte / Barite
- Barium sulphate
- Natural barium sulfate (when mined, not lab-prepared)
2. Physical & Chemical Properties
- Physical State: Fine powder or crystalline solid
- Color & Odor: White; odorless
- Melting Point: 1580 °C (decomposes)
- Boiling Point: Not applicable (decomposes)
- Density: ~4.5 g/cm³
- Solubility:
- Water: Practically insoluble (<0.002 g/100 mL at 20 °C)
- Acids: Slightly soluble in hot concentrated sulfuric acid
- pH (suspension): Neutral (6–8)
- Vapor Pressure: Not applicable
- Conductivity: Non-conductive
3. Safety & Hazard Attributes
- Hazard Class (GHS):
- Not classified as hazardous under GHS (low toxicity due to insolubility)
- NFPA Ratings:
- Health: 1
- Flammability: 0
- Reactivity: 0
- Exposure Limits:
- OSHA PEL (as total dust): 15 mg/m³
- OSHA PEL (respirable fraction): 5 mg/m³
- Reactivity:
- Chemically inert under lab conditions
- Non-combustible
- Decomposes at high temperatures releasing SOx
4. Storage & Handling Attributes
- Storage Conditions:
- Store in a dry, cool area
- Avoid humidity or moisture ingress
- Incompatible Materials:
- Strong acids, especially hot concentrated sulfuric acid
- Container Type:
- Use plastic or glass jars with tight sealing
- Shelf Life:
- Indefinite under proper dry storage
- Special Handling:
- Use gloves and dust mask to avoid inhalation
- Handle in well-ventilated space
5. Regulatory & Compliance Attributes
- GHS Pictograms:
- None required
- Transportation Information:
- Not regulated as hazardous for transport
- Waste Disposal:
- Dispose of in accordance with local lab safety protocols
- Non-toxic, but avoid dust release
- Regulations:
- Listed in TSCA, REACH, IATA, IMDG
- Generally regarded as safe due to extreme insolubility
6. Environmental & Health Impact
- Ecotoxicity:
- Low risk to aquatic life
- Biodegradability:
- Inorganic compound; not biodegradable
- Carcinogenicity:
- Not classified as carcinogenic
- Bioaccumulation Potential:
- Negligible; not bioavailable due to insolubility
SAFETY PRECAUTIONS
- Personal Protective Equipment (PPE):
- Use lab coat, protective gloves (nitrile or latex), and safety goggles.
- Use a dust mask or respirator if handling powders in bulk.
- Handling:
- Avoid generating or inhaling dust.
- Handle in a well-ventilated area or under a fume hood if dusty.
- Though non-toxic in solid form, avoid ingestion or prolonged skin exposure.
- Storage:
- Store in a tightly sealed container.
- Keep in a dry, cool, and well-ventilated place.
- Label clearly and segregate from reactive substances.
- Hygiene Measures:
- Wash hands and exposed skin thoroughly after handling.
- Do not eat, drink, or smoke in areas where this chemical is handled.
FIRST AID MEASURES
- Inhalation:
- Move person to fresh air.
- If breathing becomes difficult, get medical attention.
- Skin Contact:
- Wash affected skin with plenty of water and soap.
- Remove contaminated clothing.
- Eye Contact:
- Rinse cautiously with water for at least 15 minutes.
- If irritation persists, seek medical help.
- Ingestion:
- Rinse mouth with water.
- Though poorly soluble and less toxic than other barium salts, seek medical attention as a precaution.
FIRE FIGHTING MEASURES
- Extinguishing Media:
- Use water spray, foam, dry chemical, or CO₂.
- Fire Hazards:
- Non-flammable and does not support combustion.
- In fire conditions, may release:
- Sulfur oxides (SOₓ)
- Barium oxides
- Protective Equipment:
- Wear full protective gear and self-contained breathing apparatus (SCBA) if involved in fire.
- Firefighting Instructions:
- Avoid inhalation of fumes.
- Prevent contaminated runoff from entering drains or waterways.
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