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Dipotassium sulfite

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Identification
Molecular formula
K2SO3
CAS number
10117-38-1
IUPAC name
dipotassium;sulfite
State
State

At room temperature, dipotassium sulfite is in a solid state, appearing as a white crystalline or granular powder. It is stable under normal conditions and is often stored in airtight containers to prevent absorption of moisture from the air.

Melting point (Celsius)
740.00
Melting point (Kelvin)
1 013.15
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
158.26g/mol
Molar mass
158.2610g/mol
Density
2.3400g/cm3
Appearence

Dipotassium sulfite typically appears as a white crystalline powder. It may also be found in granular form. The compound is highly soluble in water and is often used in food processing and as a preservative.

Comment on solubility

Solubility of Dipotassium Sulfite (K2SO3)

Dipotassium sulfite, with the chemical formula K2SO3, is a compound that displays notable solubility characteristics in water. Here are some key points to consider:

  • Highly Soluble: Dipotassium sulfite is highly soluble in water, making it readily dissociate into potassium ions (K+) and sulfite ions (SO32−) when dissolved.
  • Polar Nature: The ability of K2SO3 to dissolve easily is largely attributed to its polar nature, allowing it to interact effectively with water molecules.
  • Concentration Variability: The solubility can vary with temperature, indicating that higher temperatures typically increase the solubility of K2SO3.

In practical applications, the solubility of dipotassium sulfite is particularly beneficial as it can be applied in various industrial processes and chemical syntheses where aqueous solutions are necessary. This property enhances its utility in fields such as food preservation and water treatment.

Overall, the solubility of dipotassium sulfite in water is a significant aspect that allows for its wide-ranging applications and effectiveness in numerous chemical environments.

Interesting facts

Interesting Facts about Dipotassium Sulfite

Dipotassium sulfite, a remarkable compound with diverse applications, plays a significant role in various industries and chemical processes. Here are some noteworthy facts about this intriguing compound:

  • Chemical Classification: Dipotassium sulfite is classified as a potassium salt of sulfurous acid, which highlights its importance in both inorganic and agricultural chemistry.
  • Key Applications: This compound is widely used in several applications, including:
    • Food Preservation: It acts as a preservative, preventing the oxidation of foods and beverages, especially in the wine industry.
    • Fertilizers: Dipotassium sulfite provides essential potassium and sulfur nutrients for plant growth.
    • Reducing Agent: It serves as a reducing agent in various chemical reactions, making it valuable in laboratory processes.
  • Environmental Impact: As a reducing agent, dipotassium sulfite can help mitigate heavy metal contamination in wastewaters, making it an important compound for environmental remediation.
  • Safety Precautions: While it is generally considered safe for use, it's important to handle dipotassium sulfite with care, as high concentrations can cause irritation to the skin and eyes.

In summary, dipotassium sulfite is not only useful in food preservation but also plays a critical role in agriculture and environmental chemistry. Its multifunctionality makes it a compound of interest for both scientists and industries alike.

Synonyms
POTASSIUM SULFITE
10117-38-1
Dipotassium sulfite
Potassium sulphite
Sulfurous acid, dipotassium salt
Potassium sulfite (K2SO3)
UNII-015KZC652E
Sulfurous acid, potassium salt
HSDB 5052
015KZC652E
EINECS 233-321-1
DIPOTASSIUM SULPHITE
POTASSIUM SULFITE [MI]
INS NO.225
POTASSIUM SULFITE [FCC]
POTASSIUM SULFITE [HSDB]
DTXSID80889532
INS-225
EC 233-321-1
E-225
POTASSIUM SULFITE [INCI]
DTXCID701028785
Sulfurous acid, potassium salt (1:2)
Potassiumsulfite
dipotassium;sulfite
Potassium sulfite(IV)
Kaliumsulfit
E225
Potassium sulfite, 90%
SCHEMBL42806
SCHEMBL27370109
MFCD00011387
AKOS015915915
Potassium sulfite, SAJ first grade, >=95.0%
Q417109