Molekula
Barium sulfate (Blanc Fixe Type N)
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Barium sulfate (Blanc Fixe Type N) is a chemically inert, radiopaque powder widely used in medical imaging as a contrast agent, in coatings for its opacity, and as a filler in plastics, paints, and rubber. It is also employed in X-ray diagnostics and as a white pigment in art materials. CAS 7727-43-7, molecular formula BaSO₄, molecular weight 233.39 g/mol. Store at ambient conditions. Non-hazardous, no signal word required. Molekula supplies Barium sulfate (Blanc Fixe Type N) from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
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Specifications
| Property | Value |
|---|---|
| Appearance | Solid |
| pH | 6.5 - 9.0 |
| Whiteness | ≥97.0% |
| Water insoluble matter | ≤0.3000% |
| Oil Absorption | 10 - 20 |
| Iron (Fe) | ≤0.0020% |
| Particle size, D50 | ≤0.7 |
| Sieve residue (325 mesh) | ≤0.010% |
| Barium sulphate | ≥96.0% |
| Volatile Matter (105℃) | ≤0.3% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White, orthorhombic crystals |
| Odour | Odorless |
| Melting Point | 1580 °C |
| Boiling Point | 1600 °C (Decomposes) |
| Density | 4.49 g/cm³ |
| Solubility (other solvents) | Soluble in hot concentrated sulfuric acid; practically insoluble in dilute acids and alcohol |
| Vapour Pressure | 0 mmHg (approx) |
Source: PubChem CID 24414 (HSDB, The National Institute for Occupational Safety and Health (NIOSH))
Identification
| Property | Value |
|---|---|
| SKU | 90023824 |
| CAS Number | 7727-43-7 |
| IUPAC Name | barium(2+) sulfate |
| EC Number | 231-784-4 |
| Molecular Formula | BaSO4 |
| Molecular Weight | 233.39 |
| Exact Mass | 233.857 |
| SMILES | [O-]S(=O)(=O)[O-].[Ba+2] |
| InChIKey | TZCXTZWJZNENPQ-UHFFFAOYSA-L |
| InChI | InChI=1S/Ba.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2 |
| PubChem CID | 24414 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 2833.27.0000 |
| Tariff Code | 2833270000 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is barium sulfate (Blanc Fixe Type N) commonly used for?
Blanc Fixe Type N is primarily used as a white pigment and extender in paints, plastics, and rubber, as well as in medical imaging (e.g., barium meals) due to its opacity to X-rays.
What is the chemical formula and molecular weight of Blanc Fixe Type N?
The chemical formula is **BaSO₄** with a molecular weight of **233.39 g/mol**.
How should Blanc Fixe Type N be stored?
Store at **ambient temperature** in a dry, well-ventilated area, away from moisture and incompatible substances.
What grades or purity levels of barium sulfate does Molekula supply?
Molekula supplies **Blanc Fixe Type N**, a high-purity, precipitated grade suitable for industrial and medical applications.
Can Molekula supply Blanc Fixe Type N in bulk quantities?
Yes, Molekula can provide Blanc Fixe Type N in bulk, with packaging options tailored to your requirements.
What documentation is provided with an order of Blanc Fixe Type N?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.