Barium Stearate TCI S0235

Chemical Identity

CAS No.: 6865-35-6
PubChem: CID 197077·SID 87575771
Formula: C36H70BaO4
Molecular weight: 704.3 g/mol
Purity: >60.0%(GC)
Reference databases: ChemSpider·ECHA

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: barium(2+);bis(octadecanoate)
SMILES: CCCCCCCCCCCCCCCCCC(=O)[O-].CCCCCCCCCCCCCCCCCC(=O)[O-].[Ba+2]
InChIKey: AGXUVMPSUKZYDT-UHFFFAOYSA-L

Rp 477.750,00

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CoA (Certificate of Analysis)

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Barium Stearate from TCI, product code S0235, is the barium salt of stearic acid, a saturated fatty acid with an eighteen-carbon chain. It belongs to the metallic soaps, which are metal salts of long-chain fatty acids that do not dissolve in water. In the laboratory, Barium Stearate is used as a study material and as a formulation component in polymer research, mainly as a heat stabiliser and lubricant. It also serves as a reference material in studies of other metallic soaps.

Barium Stearate is chosen because it combines an ionic barium metal portion with a long, hydrophobic hydrocarbon chain. This structure gives it lubricating and water-repellent properties. It can also neutralise the acids that form when certain polymers degrade under heat. In PVC systems, barium soaps are known to be used together with other metallic soaps, such as cadmium or zinc soaps, in mixed stabiliser systems. Barium Stearate is also fairly resistant to polymer processing temperatures, which makes it useful in formulation studies that involve heating.

For laboratories in Indonesia, this material is relevant to research in chemical engineering and materials engineering departments. It also suits product development laboratories in the plastics and rubber industries. Researchers can use it to study how metallic soaps behave in polymer formulations, to compare stabiliser and lubricant performance, and to prepare reference samples for teaching and applied research. Its supply under the established TCI brand makes it a consistent choice for repeat experiments.

TCI brochures (PDF)

Lipids 2025-12-17 · p. 7

Related TCI products

Heat stabiliser studies in PVC formulations: Barium Stearate can neutralise acids formed during thermal degradation, so it suits experiments on stabilising PVC during processing.
Mixed metallic soap stabiliser research: barium soaps are known to work alongside zinc or cadmium soaps, so this compound suits studies of how combined stabiliser systems perform.
Polymer lubricant evaluation: the long hydrophobic stearate chain gives lubricating properties, making it suitable for testing internal and external lubrication in polymer and rubber compounds.
Comparative studies of metallic soaps: as a well-defined barium salt of stearic acid, it works as a reference material when comparing the behaviour of other metal stearates.
Water-repellency and hydrophobic formulation work: because it is insoluble in water and has a long hydrocarbon chain, it suits research on water-repellent additives in materials engineering.

Brand	TCI (product code S0235)
CAS number	6865-35-6
Molecular formula	—
Purity	—
Category	Chemistry > Building Blocks > Non-Heterocyclic Building Blocks
Pack sizes	please refer to the options listed on the product page
Physical form	please refer to the TCI certificate of analysis and safety data sheet
Storage	keep tightly closed in a cool, dry place, following the TCI safety data sheet

Store Barium Stearate in its original, tightly sealed container in a cool, dry, well-ventilated area. Keep it away from moisture, strong acids, and strong oxidising agents. Barium compounds should be handled with care, so wear gloves, safety glasses, and a laboratory coat. Avoid creating or breathing in dust, and work in a fume hood or a well-ventilated area. Wash your hands after handling and do not eat or drink in the work area. Label all containers clearly. Dispose of waste according to local regulations, and always check the TCI safety data sheet before use.

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