Search
Titanium Dioxide Acetic Acid Citric Acid Sodium Hydroxide Oxalic Acid Ethyl Acetate
Sign in/Join free

Barium sulfate

CAS No.: 7727-43-7
Formula: BaO4S
Molecular Weight: 233.39
Suppliers: All(0) China Suppliers(18) Products(261)
  • Description
  • Basic Info
  • Safety Info
  • MSDS
  • Synthesis Route
  • Price
  • Related Product
  • Supplier Reference
What is Barium sulfate

Barium sulfate is a versatile inorganic compound with the chemical formula BaSO₄, widely recognized for its high density and chemical inertness. It is a white crystalline solid that is insoluble in water and most acids, making it exceptionally stable and safe for various applications. Barium sulfate is most commonly used as a radiocontrast agent in medical imaging, where its opacity to X-rays enhances the visibility of internal structures during diagnostic procedures. Additionally, it is utilized in the oil and gas industry as a weighting agent in drilling fluids, in the production of paints and coatings for its opacity and durability, and in the manufacturing of plastics, rubber, and ceramics. Its non-toxic nature and unique properties make it indispensable across multiple industries.

Preparation Process: Barium sulfate (BaSO₄) can be prepared by reacting barium chloride (BaCl₂) with sodium sulfate (Na₂SO₄) in an aqueous solution. Dissolve equimolar amounts of BaCl₂ and Na₂SO₄ separately in distilled water. Slowly mix the two solutions while stirring, resulting in the immediate formation of a white BaSO₄ precipitate due to its low solubility. Filter the suspension to collect the solid, then wash it repeatedly with distilled water to remove residual ions (Cl⁻, Na⁺). Dry the precipitate at 100–120°C to obtain pure BaSO₄. Alternatively, BaSO₄ can be made by treating barium sulfide (BaS) with sulfuric acid (H₂SO₄).

Usage Scenarios: Barium sulfate (BaSO₄) is primarily used as a radiocontrast agent in medical imaging, such as X-rays and CT scans, to enhance visibility of the gastrointestinal tract. In industry, it serves as a filler in plastics, rubber, and paints to improve density, brightness, and chemical resistance. It is also employed in drilling fluids for oil and gas wells to increase fluid density and lubricate drill bits. Additionally, barium sulfate is used in paper coatings, pigments, and as a weighting agent in textiles. Its high opacity to X-rays and chemical inertness make it valuable in both medical and industrial applications.

Barium sulfate Basic Info
Chemical Name Barium sulfate
Synonyms Precipitated BariuM Sulfate;BLANC FIXE;BARYTE;e-z-hd;Barium sulphate, precipitated;hd85;epi-c;rugar;ba147;enecat
CAS No. 7727-43-7
Molecular Formula BaO4S
Molecular Weight 233.39
PSA 88.64000
LogP -1.031 (est)
Safely Info
RTECS CR0600000
Hazard Class -
Safety Statements 22-24/25-36-26
HS Code 28332700
WGK Germany
Packing Group -
RIDADR -
Risk Statements 20/21/22-36/37/38
Hazard Codes Xn
Caution Statement P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313
Hazard Declaration H315-H319
Symbol GHS07
Signal Word Warning
Barium sulfate Price
United States: $1,000 - $1,500
China: $800 - $1,200
Russia: $700 - $1,000
Germany: $900 - $1,300
India: No results
Japan: $1,200 - $1,600
Brazil: $600 - $900
South Korea: $800 - $1,200
Philippines: $500 - $800
United Kingdom: $1,100 - $1,400
France: $1,000 - $1,300
Mexico: $700 - $1,000
Canada: $1,000 - $1,400
South Africa: $500 - $800
Egypt: $400 - $700
Turkey: $600 - $900
Thailand: $700 - $1,000
Indonesia: $500 - $800
MSDS
MSDS
Name: Barium sulfate extra pure Material Safety Data Sheet
Synonym: Artificial Barite; Enamel White; Permanent White; Sulfuric Acid Barium Salt
CAS: 7727-43-7
Section 1 - Chemical Product   MSDS Name:Barium sulfate extra pure Material Safety Data Sheet
Synonym:Artificial Barite; Enamel White; Permanent White; Sulfuric Acid Barium Salt

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
7727-43-7 Barium sulfate 97.5 231-784-4
Hazard Symbols: None Listed.
Risk Phrases: None Listed.

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Not available.
Potential Health Effects
Eye:
Dust may cause mechanical irritation.
Skin:
Dust may cause mechanical irritation.
Ingestion:
No hazard expected in normal industrial use.
Inhalation:
No hazard expected in normal industrial use.
Chronic:
Repeated exposure may cause baritosis characterized by deposition of particulate matter in the lung.

Section 4 - FIRST AID MEASURES
  Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
If victim is conscious and alert, give 2-4 cupfuls of milk or water.
Get medical aid immediately.
Inhalation:
Remove from exposure and move to fresh air immediately. Get medical aid.
Notes to Physician:

Section 5 - FIRE FIGHTING MEASURES
  General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Material will not burn.
Extinguishing Media:
Use extinguishing media most appropriate for the surrounding fire.

Section 6 - ACCIDENTAL RELEASE MEASURES
  General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions. Provide ventilation.

Section 7 - HANDLING and STORAGE
  Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid breathing dust.
Storage:
Store in a cool, dry, well-ventilated area away from incompatible substances.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
  Engineering Controls:
Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 7727-43-7: United Kingdom, WEL - TWA: 10 mg/m3 TWA (inhalable dust); 4 mg/m3 (respirable dust) United Kingdom, WEL - STEL: 30 mg/m3 STEL (inhalable dust); 12 mg STEL (respirable dust) United States OSHA: 15 mg/m3 TWA (total dust); 5 mg/m3 TWA (respirable fraction) Belgium - TWA: 10 mg/m3 VLE Malaysia: 10 mg/m3 TWA (particulate matter containing no asbestos <1% crystalline sili Netherlands: 1.5 mg/m3 MAC (respirable dust); 4 mg/m3 MAC (inhala dust) Spain: 10 mg/m3 VLA-ED (this value is for the particulated matter that is free from asb Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear impervious gloves.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
 
Physical State: Solid
Color: white
Odor: None.
pH: Not available.
Vapor Pressure: Not applicable.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 1580 deg C (dec)
Autoignition Temperature: Not available.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: 1580 deg C
Solubility in water: Insoluble.
Specific Gravity/Density: 4.5000g/cm3
Molecular Formula: BaO4S
Molecular Weight: 233.40

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable at room temperature in closed containers under normal storage and handling conditions.
Conditions to Avoid:
Dust generation.
Incompatibilities with Other Materials:
Aluminum + heat.
Hazardous Decomposition Products:
Oxides of sulfur, barium fume.
Hazardous Polymerization: Has not been reported.

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 7727-43-7: CR0600000 CR0630000 LD50/LC50:
Not available.
Carcinogenicity:
Barium sulfate - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

Section 12 - ECOLOGICAL INFORMATION
  Other No information available.

Section 13 - DISPOSAL CONSIDERATIONS
  Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION
 
IATA
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing Group:
IMO
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing Group:
RID/ADR
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing group:

Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: Not available.
Risk Phrases:
Safety Phrases:
S 22 Do not breathe dust.
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 7727-43-7: 0
Canada
CAS# 7727-43-7 is listed on Canada's DSL List.
CAS# 7727-43-7 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 7727-43-7 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A
SDS 1.0
Synthesis Route
Total9 synthetic routes
  • 12035-98-2

    vanadium monoxide

  • 14808-79-8

    sulfate

  • 287472-59-7

    4-pyren-1-yl-2,6-dipyridin-2-ylpyridine

  • 22541-12-4

    barium(2+)

  • 14808-79-8

    sulfate

  • 16887-00-6

    chloride

Reaction details
  • 7732-18-5

    Water

  • 6255-07-8

    trisodium,2-[2-[bis(carboxylatomethyl)amino]ethyl-[3-[carboxylato(carboxylatomethyl)amino]propyl]amino]acetate,cobalt(2+)

  • 14808-79-8

    sulfate

  • 22541-12-4

    barium(2+)

  • 7732-18-5

    Water

Reaction details
  • 22541-12-4

    barium(2+)

  • 14808-79-8

    sulfate

  • None

Reaction details
  • 22541-12-4

    barium(2+)

  • 118-71-8

    3-Hydroxy-2-methyl-4H-pyran-4-one

  • 22541-12-4

    barium(2+)

  • 14808-79-8

    sulfate

Reaction details
  • 14808-79-8

    sulfate

  • 22541-12-4

    barium(2+)

  • 14798-26-6

    2,4,6-trinitrophenolate

  • 14798-26-6

    2,4,6-trinitrophenolate

Reaction details
  • 22541-12-4

    barium(2+)

  • 14808-79-8

    sulfate

  • 51-92-3

    tetramethylammonium

  • 20143-63-9

    Trinitromethanide anion

Reaction details
  • 22541-12-4

    barium(2+)

  • None

  • 70903-55-8

  • 14808-79-8

    sulfate

  • 694-83-7

    1,2-Diaminocyclohexane

Reaction details
  • 22541-12-4

    barium(2+)

  • 70903-55-8

  • 14808-79-8

    sulfate

  • 694-83-7

    1,2-Diaminocyclohexane

Reaction details
  • 22541-12-4

    barium(2+)

  • 70903-55-8

  • 14808-79-8

    sulfate

  • 694-83-7

    1,2-Diaminocyclohexane

Reaction details
  • 1
Barium sulfate Suppliers
Company Name
Business Type
Location
Details
Request For Quotation
Request For Quotation
Request For Quotation
Request For Quotation
Request For Quotation
Request For Quotation
Request For Quotation
Request For Quotation