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Description
TCI E0085 Barium Disodium Ethylenediaminetetraacetate is a chelate complex formed between barium ions and the EDTA framework, with two sodium ions serving as charge-balancing counter-cations. The product is classified as a non-heterocyclic building block and functions as a practical way to introduce barium in a form that is already firmly bound by a chelating ligand. Unlike simple barium salts, which release free ions as soon as they dissolve, this compound holds barium inside the chelate cage, so its behaviour in solution becomes far more predictable for researchers working with barium-containing systems.
The characteristics that lead researchers to select this material are the combination of water solubility and complex stability. The disodium salt form provides sufficient solubility that working solutions can be prepared without the addition of base, while the EDTA chelate bond suppresses the concentration of free barium ions in solution. This matters because free barium ions precipitate readily when they encounter sulfate or carbonate, a problem that frequently disrupts experiments. In the chelated form, barium can be carried into aqueous solution systems without immediately forming a precipitate, and the solid itself is straightforward to weigh out.
In Indonesian laboratories, this material fits the workflow of research and development groups, university chemistry departments, and analytical service units that need barium delivered in a controlled, pre-complexed form. Because the chelate keeps free barium concentrations low, the compound is convenient for aqueous preparations where sulfate or carbonate contamination would otherwise cause cloudiness or precipitation, and the stable solid form suits routine gravimetric handling on the open bench.
Laboratory Applications
- Barium source for aqueous formulations: the pre-complexed form lets barium be introduced into water-based systems without the immediate precipitation seen with simple barium salts.
- Non-heterocyclic building block in synthesis work: supplied as a defined chelate structure that can be incorporated into preparative routes requiring a barium-EDTA framework.
- Controlled-release studies of metal ions: the stability of the EDTA cage keeps free barium concentrations low, allowing researchers to study systems where ion availability must be limited.
- Solution chemistry involving sulfate or carbonate media: chelation prevents the barium sulfate or carbonate precipitation that commonly interferes with experiments in these matrices.
- Preparation of reference and working solutions: adequate solubility of the disodium salt means solutions can be made up directly in water without adjusting alkalinity with added base.
Specifications
- Brand: TCI (Tokyo Chemical Industry)
- CAS number: 18744-58-6
- Category: Chemistry > Building Blocks > Non-Heterocyclic Building Blocks
- Product code: TCI E0085
- Physical form: solid, suitable for direct weighing
- Storage: store in a tightly closed container in a cool, dry place away from moisture
Handling and Storage
Store the material in its original tightly closed container in a cool, dry area, protected from moisture and kept away from incompatible substances. Glass or chemically resistant plastic containers with well-sealed closures are appropriate for both stock material and prepared solutions. Handle the solid in a well-ventilated area, preferably within a fume hood when weighing, and avoid generating airborne dust. Wear standard laboratory personal protective equipment, including gloves, safety glasses, and a laboratory coat. Barium compounds should be treated as harmful if swallowed or inhaled, so avoid all contact with skin, eyes, and mouth, wash hands thoroughly after handling, and collect residues and solutions for disposal according to institutional chemical waste procedures. Label all prepared solutions clearly with the compound name and preparation date.
