Skip to main content

Potassium arsenite

ADVERTISEMENT
Identification
Molecular formula
K3AsO3
CAS number
10124-50-2
IUPAC name
potassium;arsorite
State
State
At room temperature, potassium arsenite exists as a solid. It is typically available as a powder or crystalline solid.
Melting point (Celsius)
0.00
Melting point (Kelvin)
0.00
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
154.13g/mol
Molar mass
154.1310g/mol
Density
2.6803g/cm3
Appearence

Potassium arsenite is usually found as a white powder. It has no distinct smell and can be dissolved in water. The exact form may depend on its crystalline structure, but it is generally a fine powder as a solid compound.

Comment on solubility

Solubility of Potassium Arsenite

Potassium arsenite (K3AsO3) exhibits intriguing solubility characteristics that are essential to its applications in the chemical and agricultural sectors. Here are some key points to consider:

  • Solubility in Water: Potassium arsenite is generally soluble in water, making it easy to prepare aqueous solutions for various uses.
  • Temperature Influence: The solubility of potassium arsenite tends to increase with a rise in temperature, which is a common trait among many salts.
  • pH Dependency: The solubility can be affected by the pH of the solution, with more basic conditions often leading to higher solubility.
  • Formation of Complexes: In the presence of certain ligands or complexing agents, the solubility may further increase due to the formation of soluble complexes.

It is important to note that while potassium arsenite is soluble, it also carries significant toxic properties, which should be handled with extreme care in practical applications. Understanding its solubility is crucial for safe and effective use.

Interesting facts

Interesting Facts about Potassium Arsenite

Potassium arsenite, also known as potassium hydrogen arsenite, is a fascinating inorganic compound that brings with it a rich history and a variety of uses:

  • Historical Significance: This compound has been used since ancient times, primarily for its medicinal properties. It was once utilized as a treatment for various ailments, particularly skin conditions.
  • Uses in Agriculture: Potassium arsenite has been employed as an insecticide, specifically targeting pests without harming crops, making it an important tool for sustainable agriculture.
  • Environmental Concerns: Given its arsenic content, potassium arsenite is considered hazardous. It is crucial for scientists and users to handle it with care due to its potential toxicity.
  • Analytical Chemistry: Potassium arsenite is also used in various analytical techniques. Chemists often employ it in titration processes and as a reagent for detecting certain metals.
  • Role in Biochemistry: Recent studies suggest potential roles for arsenic compounds in biochemistry, where they may affect metabolic pathways, highlighting the importance of further research.

As with many compounds containing arsenic, potassium arsenite serves as a reminder of the delicate balance between utility and toxicity. While it plays significant roles, it also prompts ongoing inquiries into safe handling practices and potential safer alternatives.

In the words of renowned chemist Marie Curie: "Nothing in life is to be feared, it is only to be understood." This certainly applies to potassium arsenite, as its complexities and dual nature leave much for scientists and students to explore.

Synonyms
GLGWONYXPKJPGO-UHFFFAOYSA-N