Barium (Ba)
Barium (Ba)
The element barium was discovered in 1808.
Barium is found only in combination with other elements. This alkaline earth metal is metallic, soft, and silvery white when pure, resembling calcium. The metal oxidizes easily and must be kept under petroleum or other oxygen-free liquids.
Barium's important compounds are peroxide, chloride, sulfate, carbonate, nitrate, and chlorate. They are found in pigments, paints, X-ray diagnostics, and glassmaking. Other forms are used in oil well drilling fluids, rubber production, rat poison, and pyrotechnics.
Barium compounds that are water or acid soluble are poisonous. Naturally occurring barium is a mixture of seven stable isotopes, and 22 radioactive isotopes are known to exist.
Tige de baryum, dia. 22 mm (0,9 po), 99+ % (à base de métaux), Sr =0,8 %, Thermo Scientific Chemicals
CAS: 7440-39-3 Formule moléculaire: Ba Poids moléculaire (g/mol): 137.33 Numéro MDL: MFCD00134031 Clé InChI: DSAJWYNOEDNPEQ-UHFFFAOYSA-N Synonyme: bario,baryum,bario spanish,baryum french,barium, soluble compounds,unii-24gp945v5t,and soluble compounds,barium, elemental,and compounds,atom CID PubChem: 5355457 ChEBI: CHEBI:32595 Nom IUPAC: baryum SMILES: [Ba]
Solide dendritique cristallin de baryum, 99,9 % (base de métaux), Thermo Scientific Chemicals
CAS: 7440-39-3 Formule moléculaire: Ba Poids moléculaire (g/mol): 137.33 Numéro MDL: MFCD00134031 Clé InChI: DSAJWYNOEDNPEQ-UHFFFAOYSA-N Synonyme: bario,baryum,bario spanish,baryum french,barium, soluble compounds,unii-24gp945v5t,and soluble compounds,barium, elemental,and compounds,atom CID PubChem: 5355457 ChEBI: CHEBI:32595 Nom IUPAC: baryum SMILES: [Ba]
Pièces de baryum, jusqu’à 2,5 cm (1 po), 99,2 % (à base de métaux), Thermo Scientific Chemicals
CAS: 7440-39-3 Formule moléculaire: Ba Poids moléculaire (g/mol): 137.33 Numéro MDL: MFCD00134031 Clé InChI: DSAJWYNOEDNPEQ-UHFFFAOYSA-N Synonyme: bario,baryum,bario spanish,baryum french,barium, soluble compounds,unii-24gp945v5t,and soluble compounds,barium, elemental,and compounds,atom CID PubChem: 5355457 ChEBI: CHEBI:32595 Nom IUPAC: baryum SMILES: [Ba]
Baryum, 99+%, tiges, ∽2 cm de diamètre, Thermo Scientific Chemicals
CAS: 7440-39-3 Formule moléculaire: Ba Poids moléculaire (g/mol): 137.33 Numéro MDL: MFCD00134031 Clé InChI: DSAJWYNOEDNPEQ-UHFFFAOYSA-N Synonyme: bario,baryum,bario spanish,baryum french,barium, soluble compounds,unii-24gp945v5t,and soluble compounds,barium, elemental,and compounds,atom CID PubChem: 5355457 ChEBI: CHEBI:32595 Nom IUPAC: baryum SMILES: [Ba]