1.01735

Barium hydroxide octahydrate

EMPLURA^®

• Synonym(s): Barium hydroxide octahydrate, Caustic baryta, Barium oxide hydrate octahydrate
• Linear Formula: Ba(OH)₂ · 8 H₂O
• CAS Number: 12230-71-6
• Molecular Weight: 315.46
• MDL number: MFCD00149152
• UNSPSC Code: 12352305
• EC Index Number: 241-234-5
• NACRES: NA.21

Properties

• Quality Level: 200
• product line: EMPLURA^®
• assay: ≥98.0% (acidimetric)
• form: solid
• potency: 550 mg/kg LD₅₀, oral (Rat)
• impurities: ≤0.01% Substances insoluble in dilute hydrochloric acid; ≤0.2% Substances not precipitated by dilute sulfuric acid (as sulfate)
• pH: 14 (20 °C in H₂O, saturated aqueous solution)
• mp: 78 °C
• solubility: 72 g/L
• density: 2.18 g/cm³ at 20 °C
• bulk density: 900‑1100 kg/m³
• anion traces: carbonate (as BaCO₃): ≤2.0%; chloride (Cl^-): ≤0.002%; sulfide (S^2-): ≤0.001%
• cation traces: Ca: ≤0.005%; Fe: ≤0.001%; Sr: ≤1.0%; heavy metals (as Pb): ≤0.002%
• storage temp.: 2-30°C
• InChI: 1S/Ba.10H2O/h;10*1H2/q+2;;;;;;;;;;/p-2
• InChI key: ZUDYPQRUOYEARG-UHFFFAOYSA-L

Description

Application

• Chitosan and carbon nitride doped barium hydroxide nanoparticles served as dye degrader and bactericidal potential: A molecular docking study.: This study explores the use of barium hydroxide octahydrate nanoparticles doped with chitosan and carbon nitride for applications in dye degradation and as bactericidal agents. The research highlights the potential of these nanoparticles in environmental remediation and antimicrobial treatments (Ikram et al., 2023).


• Ba(OH)2 Equilibria in the System Ba-O-H-F, With Application to the Formation of Ba2YCu3O6.5 + x From BaF2-Precursors.: This paper discusses the equilibrium of barium hydroxide octahydrate in the Ba-O-H-F system and its application in forming Ba2YCu3O6.5 + x from BaF2 precursors. This research is relevant to material synthesis and applications in superconductors (Cook et al., 2005).


• The Effect of Nanometer Oxide Additive on the Heat-Conducting Property of Barium Hydroxide Octahydrate.: This article investigates how nanometer-scale oxide additives affect the heat-conducting properties of barium hydroxide octahydrate, highlighting potential applications in thermal management systems and heat storage (Xu et al., 2015).


• Application of capillary isotachophoresis to analysis of serum protein.: This study utilizes barium hydroxide octahydrate in the capillary isotachophoresis analysis of serum proteins, demonstrating its application in biochemical analysis and clinical diagnostics (Ono et al., 1990).


• Staining of tissue sections for electron microscopy with heavy metals. II. Application of solutions containing lead and barium.: This research applies barium hydroxide octahydrate solutions in staining tissue sections for electron microscopy, providing insights into its use in histological and cytological studies (WATSON, 1958).

Analysis Note

Assay (acidimetric): ≥ 98.0 %
Substances insoluble in dilute hydrochloric acid: ≤ 0.01 %
Carbonate (as BaCO₃): ≤ 2.0 %
Chloride (Cl): ≤ 0.002 %
Sulphide (S): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.002 %
Ca (Calcium): ≤ 0.005 %
Fe (Iron): ≤ 0.001 %
Sr (Strontium): ≤ 1.0 %
Substances not precipitated by dilute sulfuric acid (as sulfate): ≤ 0.2 %

Legal Information

EMPLURA is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• pictograms: GHS05,GHS07
• signalword: Danger
• hcodes: H302 + H332 - H314
• pcodes: P260 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Skin Corr. 1B
• Storage Class: 6.1A - Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable