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Send EmailBarium Carbonate, Barium Mono Carbonate, Barium Carbonate Anhydrous, 513-77-9
BARIUM CARBONATE
PRODUCT IDENTIFIER INFORMATION
| Parameter | Information |
|---|---|
| Product Name | Barium Carbonate |
| Chemical Name (IUPAC) | Carbonic Acid Barium Salt |
| CAS Number | 513-77-9 |
| EC Number (EINECS) | 208-167-3 |
| Molecular Formula | BaCO₃ |
| Molecular Weight | 197.34 g/mol |
CHEMICAL STRUCTURE
O
||
Ba²⁺ C
/ \
O O²⁻
Barium Carbonate (BaCO₃)
Ionic Structure
Barium Carbonate Molecular Structure
Molecular Formula: BaCO₃
SMILES: [Ba+2].[O-]C([O-])=O
InChI: 1S/CH2O3.Ba/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2
SECTION 1: CHEMICAL IDENTITY AND DESCRIPTION
| Parameter | Information |
|---|---|
| Chemical Name (IUPAC) | Carbonic Acid Barium Salt |
| Systematic Name | Barium Carbonate; Barium Monocarbonate |
| Synonyms (English) | Barium Carbonate, Barium Mono Carbonate, Barium Carbonate Anhydrous, Witherite (natural mineral form), Pigment White 10, C.I. 77099, Carbonic Acid Barium Salt, Barium Carbonate (BaCO₃), Barium Carbonate (1:1), Barium Monocarbonate, BW-P, BW-C3, FO3, LC 1, LSR, BW-KH30, BW-KH 30 |
| CAS Number | 513-77-9 |
| EC Number (EINECS) | 208-167-3 |
| Molecular Formula | BaCO₃ |
| Molecular Weight | 197.34 g/mol |
| Chemical Class | Inorganic compound; alkaline earth metal carbonate |
| Physical State (20°C) | White crystalline powder |
| Odor | Odorless |
| Taste | Tasteless (not for consumption) |
| Natural Form | Occurs naturally as the mineral Witherite |
SECTION 2: PHYSICAL AND CHEMICAL PROPERTIES
| Property | Value | Test Method / Note |
|---|---|---|
| Appearance | White crystalline powder | Visual |
| Odor | Odorless | Olfactometric |
| Molecular Weight | 197.34 g/mol | Calculated |
| Melting Point | 811 °C (decomposes) | DSC |
| Boiling Point | 1450 °C (decomposes) | - |
| Density (20°C) | 4.29 - 4.43 g/cm³ | ASTM D4052 |
| Bulk Density | 1.5 - 2.0 g/cm³ (depending on particle size) | - |
| Refractive Index | 1.529 - 1.677 | Refractometry |
| Solubility in Water | Insoluble (0.0015 g/100 mL at 20°C) | General Method |
| Solubility in Acids | Soluble in most acids (except sulfuric acid) | General Method |
| Solubility in Sulfuric Acid | Insoluble (forms BaSO₄ protective layer) | General Method |
| Solubility in Ammonium Chloride | Soluble | General Method |
| pH (Suspension) | ~7.0 - 8.5 | - |
| Mohs Hardness | 3.0 - 3.5 | - |
| Crystal System | Orthorhombic | XRD |
| Thermal Decomposition | Decomposes at 811°C to BaO + CO₂ | TGA |
| Specific Surface Area | 5 - 15 m²/g | BET |
| Particle Size (Typical) | 0.5 - 10 µm (varies by grade) | Laser Diffraction |
SECTION 3: CHEMICAL PROPERTIES AND REACTIVITY
| Parameter | Information |
|---|---|
| Chemical Character | Inorganic alkaline earth metal carbonate; basic in nature |
| Stability | Stable under normal conditions |
| Reactivity | Reacts with acids to produce barium salts and carbon dioxide; decomposes upon heating to barium oxide and carbon dioxide |
| Incompatible Materials | Strong acids (except sulfuric acid), strong oxidizing agents, aluminum, magnesium, fluorine |
| Polymerization | Does not polymerize |
| Decomposition Products (Heating) | Barium oxide (BaO), Carbon dioxide (CO₂) |
| Hazardous Reactions | Reacts with acids to release CO₂ gas; may react violently with aluminum powder at high temperatures; insoluble in sulfuric acid due to protective barium sulfate layer formation |
| Behavior in Acids | BaCO₃ + 2HCl → BaCl₂ + H₂O + CO₂ (soluble in most acids) |
| Behavior in Sulfuric Acid | BaCO₃ + H₂SO₄ → BaSO₄↓ + H₂O + CO₂ (BaSO₄ is insoluble and forms protective layer) |
| pH Influence | Displays basic character; neutralizes acids |
SECTION 4: COMMON BARIUM COMPOUNDS COMPARISON TABLE
| Property | Barium Carbonate (BaCO₃) | Barium Sulfate (BaSO₄) | Barium Chloride (BaCl₂) | Barium Hydroxide (Ba(OH)₂) |
|---|---|---|---|---|
| CAS Number | 513-77-9 | 7727-43-7 | 10361-37-2 | 17194-00-2 |
| Formula | BaCO₃ | BaSO₄ | BaCl₂ | Ba(OH)₂ |
| Molecular Weight | 197.34 | 233.38 | 208.23 | 171.34 |
| Appearance | White powder | White powder | White crystals | White powder/crystals |
| Density (g/cm³) | 4.29 | 4.50 | 3.86 | 3.74 |
| Solubility in Water | Insoluble | Insoluble | Soluble (37 g/100 mL) | Soluble (3.9 g/100 mL) |
| Primary Use | Ceramics, glass, barium salts | Drilling mud, medical imaging, pigments | Barium salt precursor, wastewater treatment | Laboratory reagent, sugar refining |
SECTION 5: FUNCTIONAL PROPERTIES AND MECHANISM OF ACTION
| Property | Description |
|---|---|
| Ceramic Flux | Acts as a flux in ceramic glazes; reduces melting point and improves fluidity; provides BaO source for ceramic formulations |
| Glass Modifier | Improves optical properties of glass; increases refractive index and density; used in optical glass and crystal production |
| Density Modifier | High specific gravity (4.29 g/cm³) makes it suitable for weight adjustment applications |
| Pigment/Whitening Agent | Provides white color (Pigment White 10) in paints, coatings, and plastics |
| Chemical Precursor | Key starting material for producing other barium compounds (BaCl₂, BaNO₃, Ba(OH)₂, etc.) |
| Acid Neutralizer | Reacts with acids to neutralize pH and form soluble barium salts |
| Flame Retardant | Used in combination with other compounds to enhance flame retardancy |
| Welding Electrode Coating | Enhances arc stability and weld quality; improves slag fluidity |
| Pest Control | Acts as a rodenticide; toxic to rodents when ingested |
| Accelerant | Has property of accelerating combustion/explosion when used in certain formulations |
SECTION 6: MAIN APPLICATION AREAS
| Industry / Application | Function | Typical Use |
|---|---|---|
| Ceramic Industry | Flux / glaze component | Production of ceramic tiles, sanitaryware, tableware; improves glaze brilliance and surface finish; controls linear shrinkage and water absorption |
| Glass Industry | Modifier / additive | Optical glass, crystal glass, television tubes, radiation-shielding glass; increases refractive index and density |
| Electronics Industry | Component / precursor | Capacitors, ultrasonic transducers, high-voltage AC capacitors, magnetic materials, electronic ceramics |
| Chemical Industry | Starting material / precursor | Production of barium chloride, barium nitrate, barium hydroxide, and other barium salts |
| Pigment Industry | White pigment | Pigment White 10; used in paints, coatings, plastics, and rubber |
| Petroleum Industry | Drilling mud additive | Added to drilling fluids as weighting agent; improves density and rheology; prevents fluid loss and formation damage |
| Welding Industry | Electrode coating | Essential component in welding electrode coatings; improves arc stability and slag removal |
| Agriculture | Pesticide / rodenticide | Rodent control; pest control formulations |
| Plastic and Rubber Industry | Filler / additive | Provides weight and stiffness; acts as reinforcing filler |
| Refractory Materials | Binder / additive | Used in high-temperature applications due to stability at elevated temperatures |
| Construction | Cement additive | Imparts special properties to specialty cements |
| Paints and Coatings | Filler / opacifier | Provides opacity and durability; increases density of coatings |
SECTION 7: QUALITY SPECIFICATIONS (TECHNICAL GRADE)
| Parameter | Specification | Test Method |
|---|---|---|
| Appearance | White crystalline powder | Visual |
| Assay (BaCO₃) | ≥ 98.0 % | Titrimetric |
| Barium Oxide (BaO) Content | ≥ 77.0 % | Calculated |
| Loss on Drying | ≤ 0.3 % | Gravimetric |
| Loss on Ignition | ≤ 0.5 % | Gravimetric |
| Acid Insoluble Matter | ≤ 0.2 % | Gravimetric |
| Chlorides (as Cl) | ≤ 0.01 % | Nephelometry |
| Sulfides (as S) | ≤ 0.005 % | Titrimetric |
| Iron (Fe) | ≤ 0.005 % | AAS / ICP |
| Heavy Metals (as Pb) | ≤ 0.001 % | AAS / ICP |
| Moisture Content | ≤ 0.3 % | Karl Fischer Titration |
| Particle Size (d50) | 1.0 - 5.0 µm (varies by grade) | Laser Diffraction |
| Bulk Density | 1.5 - 2.0 g/cm³ | General Method |
| Whiteness | ≥ 90 % | Spectrophotometer |
| pH (10% Suspension) | 7.0 - 8.5 | pH Meter |
SECTION 8: TOXICOLOGICAL PROFILE
| Parameter | Value |
|---|---|
| Acute Oral Toxicity (LD50, Rat) | ~ 630 - 1,500 mg/kg (moderate to high toxicity) |
| Acute Dermal Toxicity (LD50, Rabbit) | > 2,000 mg/kg (low toxicity) |
| Acute Inhalation Toxicity (LC50, Rat, 4h) | > 10 mg/L (dust) |
| Skin Irritation | Mildly irritating; may cause dryness |
| Eye Irritation | Mildly irritating; mechanical abrasion possible |
| Respiratory Irritation | Dust may cause respiratory tract irritation |
| Chronic Toxicity | Prolonged exposure may cause barium poisoning; affects cardiovascular and nervous systems |
| Carcinogenicity | Not classified (IARC, NTP) |
| Mutagenicity | Negative in standard tests |
| Reproductive Toxicity | No known adverse effects at occupational exposure limits |
| Target Organs | Cardiovascular system, nervous system, respiratory system |
| Occupational Exposure Limit (8h TWA) | 0.5 mg/m³ (as Ba, OSHA) |
| Short-Term Exposure Limit (STEL) | 1.0 mg/m³ (as Ba, ACGIH) |
| Special Toxicity Note | Soluble barium compounds are more toxic; BaCO₃ is insoluble but can react with stomach acid to form soluble barium chloride |
SECTION 9: GHS CLASSIFICATION AND LABELING
GHS Classification (according to 1272/2008/EC and UN GHS):
| Hazard Class | Category | H-Statement |
|---|---|---|
| Acute Toxicity (Oral) | Category 4 | H302 |
| Acute Toxicity (Inhalation) | Category 4 | H332 |
| Specific Target Organ Toxicity - SE | Category 3 | H335 |
| Specific Target Organ Toxicity - RE | Category 2 | H373 |
Signal Word: WARNING
Hazard Pictograms: GHS07 (Exclamation Mark)
Hazard Statements (H-Codes):
| Code | Statement |
|---|---|
| H302 | Harmful if swallowed |
| H332 | Harmful if inhaled |
| H335 | May cause respiratory irritation |
| H373 | May cause damage to organs (cardiovascular system, nervous system) through prolonged or repeated exposure |
NFPA 704 Hazard Classification:
| Health | Flammability | Reactivity | Special |
|---|---|---|---|
| 2 | 0 | 0 | - |
| (Moderate health hazard) | (Non-flammable) | (Stable) | (None) |
SECTION 10: PRECAUTIONARY STATEMENTS (P-CODES)
| Code | Statement |
|---|---|
| P260 | Do not breathe dust/fume/gas/mist/vapors/spray |
| P262 | Do not get in eyes, on skin, or on clothing |
| P270 | Do not eat, drink or smoke when using this product |
| P271 | Use only outdoors or in a well-ventilated area |
| P280 | Wear protective gloves / protective clothing / eye protection / face protection |
| P301+P312 | IF SWALLOWED: Call a POISON CENTER / doctor if you feel unwell |
| P302+P352 | IF ON SKIN: Wash with plenty of soap and water |
| P304+P340 | IF INHALED: Remove person to fresh air and keep comfortable for breathing |
| P305+P351+P338 | IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing |
| P312 | Call a POISON CENTER / doctor if you feel unwell |
| P330 | Rinse mouth |
| P403+P233 | Store in a well-ventilated place. Keep container tightly closed |
| P405 | Store locked up |
| P501 | Dispose of contents/container in accordance with local/regional/national/international regulations |
SECTION 11: FIRST AID MEASURES
| Exposure Route | Action to Take |
|---|---|
| Inhalation | Move to fresh air. Keep at rest in a position comfortable for breathing. If breathing is difficult, give oxygen. Seek medical attention if symptoms persist. |
| Skin Contact | Remove contaminated clothing. Wash with plenty of soap and water. If irritation develops, seek medical attention. |
| Eye Contact | Rinse immediately with plenty of water for at least 15 minutes. Remove contact lenses if present. Seek medical attention if irritation persists. |
| Ingestion | Rinse mouth. Do NOT induce vomiting. Seek immediate medical attention. Note: Barium carbonate can react with stomach acid to form soluble barium chloride, which is highly toxic. |
SECTION 12: FIRE-FIGHTING MEASURES
| Parameter | Information |
|---|---|
| Fire Hazard | Non-flammable; may decompose at high temperatures |
| Hazards During Fire | Thermal decomposition produces toxic barium oxide fumes and carbon dioxide |
| Suitable Extinguishing Media | Dry chemical powder, CO₂, water spray, foam (use any media suitable for surrounding fire) |
| Unsuitable Extinguishing Media | None known |
| Special Protective Equipment | Self-contained breathing apparatus (SCBA), full protective clothing |
| Special Precautions | Avoid creating dust; prevent runoff water from entering drains and waterways; isolate from incompatible materials |
SECTION 13: STORAGE AND SHELF LIFE
| Parameter | Information |
|---|---|
| Storage Conditions | Cool, dry, well-ventilated area; protect from moisture and incompatible materials |
| Container Requirements | Tightly closed, properly labeled containers; use moisture-resistant packaging |
| Materials to Protect From | Strong acids, strong oxidizing agents, aluminum powder, magnesium powder, fluorine, moisture |
| Shelf Life | 36 months (in unopened original packaging, under proper storage conditions) |
| Stability Note | Stable under normal conditions; hygroscopic in presence of acids; protect from moisture to prevent caking |
SECTION 14: PACKAGING OPTIONS
| Packaging Type | Quantity | Material |
|---|---|---|
| Paper Bag | 25 kg | Multi-layer kraft paper with plastic liner |
| Plastic Bag | 25 kg, 50 kg | PE bag |
| Plastic Drum | 100 kg, 200 kg | HDPE / Polypropylene |
| Fiber Drum | 100 kg, 200 kg | Fiberboard with PE liner |
| IBC Container | 1000 kg | HDPE / PP |
| Bulk Bag (FIBC) | 500 kg, 1000 kg | Woven PP with PE liner |
| Bulk Tanker | 20-25 tons | Stainless steel / Carbon steel with liner |
SECTION 15: TRANSPORT INFORMATION
| Parameter | Information |
|---|---|
| UN Number | UN 1564 (Barium compounds, n.o.s.) |
| Hazard Class | 6.1 (Toxic Substance) |
| Packing Group | III |
| ADR/RID | UN 1564, Barium compounds, n.o.s., 6.1, PG III |
| IMDG Code | UN 1564, Barium compounds, n.o.s., 6.1, PG III, Marine Pollutant: Yes |
| IATA (Air) | UN 1564, Barium compounds, n.o.s., 6.1, PG III |
| Marine Pollutant | Yes |
| Transport Temperature | Ambient; protect from moisture |
| Special Provisions | Classified as environmentally hazardous |
SECTION 16: REGULATORY STATUS
| Region / Authority | Status |
|---|---|
| European Union | REACH registered; restricted under various regulations |
| USA (TSCA) | Listed |
| USA (EPA) | Regulated under various environmental laws |
| Turkey | Industrial chemical; subject to KKDIK (Registration, Evaluation, Authorization, and Restriction of Chemicals) regulation |
| IARC | Not classified as carcinogenic |
| OSHA | Regulated (toxic substance) |
| FDA | Not approved for food contact or food additives |
| California (Prop 65) | Not listed |
SECTION 17: OTHER NAMES AND SYNONYMS
| Type | Name |
|---|---|
| English Synonyms | Barium Carbonate, Barium Mono Carbonate, Barium Carbonate Anhydrous, Carbonic Acid Barium Salt, Barium Carbonate (BaCO₃), Barium Carbonate (1:1), Barium Monocarbonate, Pigment White 10, C.I. 77099, Witherite (mineral form), BW-P, BW-C3, FO3, LC 1, LSR, BW-KH30, BW-KH 30 |
| Chemical Names | Carbonic Acid Barium Salt; Barium Carbonate |
| Mineral Name | Witherite (natural form) |
| CAS Number | 513-77-9 |
| EC Number | 208-167-3 |
SECTION 18: BARIUM CARBONATE ALTERNATIVES
| Alternative | Best Suited For | Key Difference |
|---|---|---|
| Strontium Carbonate (SrCO₃) | Ceramic glazes, pyrotechnics | Similar properties, different color; less toxic |
| Calcium Carbonate (CaCO₃) | Fillers, pigments, ceramics | Lower density; much less toxic; widely available |
| Barium Sulfate (BaSO₄) | Drilling mud, medical imaging, pigments | Higher density; insoluble in all acids (including HCl) |
| Sodium Carbonate (Na₂CO₃) | Glass production, detergents | Soluble in water; different chemical properties |
| Lead Carbonate (PbCO₃) | Ceramic glazes, pigments | Higher density; highly toxic; restricted use |
| Zinc Carbonate (ZnCO₃) | Rubber, pharmaceuticals | Different chemical properties; lower density |
| Alkali Metal Carbonates | General applications | More soluble; different reactivity profiles |
SECTION 19: SUMMARY TABLE
| Parameter | Value |
|---|---|
| Product | Barium Carbonate |
| CAS Number | 513-77-9 |
| Molecular Formula | BaCO₃ |
| Molecular Weight | 197.34 g/mol |
| Appearance | White crystalline powder |
| Density | 4.29 - 4.43 g/cm³ |
| Melting Point | 811 °C (decomposes) |
| Solubility in Water | Insoluble |
| Solubility in Acids | Soluble in most acids (except H₂SO₄) |
| Primary Function | Ceramic flux, chemical precursor, glass modifier, filler |
| Main Applications | Ceramics, glass, electronics, petroleum, welding, pigments |
| Shelf Life | 36 months |
| GHS Signal Word | WARNING |
| UN Number | UN 1564 |
SECTION 20: CRITICAL WARNINGS AND BEST PRACTICES
CRITICAL WARNINGS:
-
Harmful if swallowed or inhaled (H302/H332). Use adequate ventilation and PPE.
-
May cause respiratory irritation (H335). Use dust mask or respirator.
-
Organ Toxicity: Prolonged/repeated exposure may cause damage to cardiovascular and nervous systems (H373).
-
Insoluble in water but reacts with stomach acid to form soluble barium chloride (highly toxic). Ingestion is dangerous.
-
Non-flammable but decomposes at high temperatures to release toxic barium oxide fumes.
-
Incompatibilities: Keep away from strong acids, strong oxidizers, aluminum powder, and magnesium powder.
-
Do not mix with acids as they will release CO₂ gas and form toxic soluble barium salts.
BEST PRACTICE RECOMMENDATIONS:
-
Ceramic Industry: Use as a flux in glazes and bodies; typical addition 1-10% depending on desired effect; controls expansion coefficient and improves whiteness.
-
Glass Production: Use as a modifier; improves refractive index and density; typical usage 2-15% in optical glass.
-
Drilling Mud: Use as weighting agent; prevents fluid loss; ensures proper rheological properties.
-
Handling: Use in well-ventilated areas; wear dust mask, safety goggles, and chemical-resistant gloves.
-
Storage: Store in dry conditions; protect from moisture to prevent caking; seal containers after use.
-
Spill Response: Avoid creating dust; vacuum or wet sweep; place in sealed containers for disposal; prevent discharge to water bodies.
-
Disposal: Dispose of in accordance with local, regional, and national regulations; do not discharge into drains or water bodies.
LEGAL DISCLAIMER:
The information provided in this document is based on our current knowledge and experience and is presented in good faith. However, as all conditions of use are beyond our control, it does not constitute a binding specification or warranty. This Technical Data Sheet is for informational purposes only. Users are responsible for testing the suitability of the product for their specific applications. For complete safety, storage, use, handling, waste, and regulatory compliance information, please refer to the official Safety Data Sheet (SDS/MSDS) provided by the manufacturer/supplier.
