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Sodium phosphite

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Identification
Molecular formula
Na2HPO3
CAS number
13708-85-5
IUPAC name
sodium hydrogen phosphonate
State
State

Sodium phosphite is in a solid state at room temperature. It is stable under normal conditions but should be kept away from moisture as it is hygroscopic.

Melting point (Celsius)
200.00
Melting point (Kelvin)
473.00
Boiling point (Celsius)
100.00
Boiling point (Kelvin)
373.00
General information
Molecular weight
105.95g/mol
Molar mass
105.9450g/mol
Density
2.9247g/cm3
Appearence

Sodium phosphite is typically a white crystalline solid. It can appear as a powder or granules and is highly soluble in water, forming a clear solution.

Comment on solubility

Solubility of Sodium Hydrogen Phosphonate

Sodium hydrogen phosphonate, with the chemical formula Na2HPO3, exhibits notable solubility characteristics in various solvents. Here are some key aspects of its solubility:

  • Water Solubility: Sodium hydrogen phosphonate is highly soluble in water, making it useful in a variety of aqueous applications.
  • Temperature Dependence: As with many ionic compounds, its solubility can increase with temperature, allowing for greater concentrations in solution at elevated temperatures.
  • pH Effects: The solubility may also be influenced by the pH of the solution; under alkaline conditions, it can further dissociate, enhancing its solubility.
  • Comparative Solubility: When compared to other phosphonate salts, sodium hydrogen phosphonate often demonstrates superior solubility due to its sodium counterion, which stabilizes the ionic compound in solution.

Overall, this compound is considered to be quite versatile in its solubility profile, particularly in aqueous environments, which can be attributed to its ionic nature and the stabilizing effect of sodium ions. Its solubility properties render it suitable for applications in fertilizers, food additives, and chemical syntheses, where efficient dissolution is essential for desired reactions or formulations.

Interesting facts

Interesting Facts about Sodium Hydrogen Phosphonate

Sodium hydrogen phosphonate, often referred to as disodium phosphonate, is a unique chemical compound that plays several important roles across various fields. Here are some fascinating insights about this versatile compound:

  • Applications in Agriculture: Sodium hydrogen phosphonate is widely used as a fertilizer. Its presence supports plant growth and helps in the prevention of diseases caused by fungi, acting as a fungicide.
  • Water Treatment: This compound is also utilized in water treatment processes. Its ability to aid in the reduction of heavy metal ion concentrations makes it integral in environmental conservation efforts.
  • Industrial Uses: Sodium hydrogen phosphonate has significant applications in the manufacturing of plastics and ceramics, contributing to improved material properties.
  • Biomedical Research: Researchers are exploring its potential in the field of medicine, particularly its efficacy in drug delivery systems and targeted therapies.
  • Regulatory Compliance: Being an environmentally friendly agent, sodium hydrogen phosphonate complies with many international regulations, which boosts its appeal across various industries.

In addition, it's essential to note that sodium hydrogen phosphonate operates by releasing phosphonate ions, which can be highly reactive in biological systems. This characteristic makes it both a valuable ally in agricultural chemistry and a subject of study in research labs. As we continue to uncover its benefits and potential applications, sodium hydrogen phosphonate remains an exciting area of exploration in chemical science.