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Disodium EDTA

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Identification
Molecular formula
C10H14N2Na2O8
CAS number
139-33-3
IUPAC name
sodium;2-[bis(carboxymethyl)amino]acetate
State
State

At room temperature, Disodium EDTA is generally in a solid state, specifically as a fine white powder.

Melting point (Celsius)
252.00
Melting point (Kelvin)
525.15
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
336.21g/mol
Molar mass
336.2050g/mol
Density
0.8602g/cm3
Appearence

Disodium EDTA appears as a white crystalline powder. It is often found as a dihydrate, which absorbs moisture from the air.

Comment on solubility

Solubility of Sodium 2-[Bis(carboxymethyl)amino]acetate

Sodium 2-[bis(carboxymethyl)amino]acetate, often referred to as sodium EDTA, is known for its remarkable solubility characteristics. This compound is quite soluble in water, making it an excellent candidate for various aqueous applications. Here are some key points regarding its solubility:

  • High Water Solubility: Sodium EDTA can dissolve in water at significant concentrations, with solubility values typically exceeding 100 g/L at room temperature.
  • pH Dependence: Its solubility tends to increase at higher pH levels, which can be attributed to the ionization of the carboxylate groups.
  • Temperature Influence: Like many salts, solubility may also be affected by temperature; generally, higher temperatures result in increased solubility.
  • Non-volatile nature: Sodium EDTA is stable in solution and does not readily evaporate, ensuring its presence in a dissolved state for extended periods.

Due to these properties, sodium 2-[bis(carboxymethyl)amino]acetate is widely utilized in various applications, including industrial processes, biotechnology, and as a chelating agent in pharmaceutical formulations. Its ability to complex metal ions enhances its functional performance in numerous settings.

Interesting facts

Interesting Facts about Sodium; 2-[bis(carboxymethyl)amino]acetate

Sodium; 2-[bis(carboxymethyl)amino]acetate, commonly known as EDTA sodium salt, is a fascinating compound widely used in various fields due to its unique properties and functions. Here are some notable aspects:

  • Chelating Agent: EDTA is one of the most effective chelating agents, meaning it can bind to metal ions. This property makes it invaluable in applications such as metal ion removal in various chemical processes.
  • Biological Applications: In biochemistry, EDTA is utilized to sequester metal ions, which helps stabilize enzymes and proteins in biochemical assays.
  • Medical Uses: EDTA has significant medical applications, particularly in the treatment of lead poisoning and heavy metal toxicity. It facilitates the removal of toxic metals from the bloodstream.
  • Environmental Impact: Its use in environmental science includes phytoremediation, wherein plants are treated with EDTA to enhance the uptake of heavy metals from contaminated soils.
  • Food Industry: In the food industry, EDTA is employed as a preservative and stabilizer, prolonging the shelf life of products by preventing metal-catalyzed oxidation.

In the words of renowned chemist Linus Pauling, "Chemical substances are not infinite in number; they are finite and ordered." This statement rings true in the case of sodium; 2-[bis(carboxymethyl)amino]acetate, as its structured nature enables diverse applications across numerous disciplines.

Furthermore, the compound has also garnered attention for its role in research laboratories, where it is often used to control the concentration of metal ions in various chemical reactions, showcasing the versatility and significance of this compound in both academic and industrial settings.