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Potassium hydroxide

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Identification
Molecular formula
K2O + H2O
CAS number
1310-58-3
IUPAC name
dipotassium;hydroxide
State
State

At room temperature, potassium hydroxide is typically found as a solid.

Melting point (Celsius)
360.00
Melting point (Kelvin)
633.00
Boiling point (Celsius)
1 320.00
Boiling point (Kelvin)
1 593.00
General information
Molecular weight
56.11g/mol
Molar mass
56.1060g/mol
Density
2.0440g/cm3
Appearence

Potassium hydroxide is typically a white solid that is hygroscopic. It is available in various forms such as flakes, pellets, or powders. When dissolved in water, it forms a strongly alkaline solution. It is often used in the form of pellets, which are translucent and crystalline.

Comment on solubility

Solubility of Dipotassium Hydroxide (K2O + H2O)

Dipotassium hydroxide, often referred to as a strong base, demonstrates notable solubility in water. Below are some key points regarding its solubility:

  • Highly Soluble: Dipotassium hydroxide is highly soluble in water, allowing it to dissociate into potassium ions (K+) and hydroxide ions (OH-). This property is essential for various chemical applications.
  • Concentration Effects: As the concentration of dipotassium hydroxide in water increases, the solution maintains its characteristic basic properties, making it useful in titrations and neutralization reactions.
  • Temperature Influence: Solubility may be affected by temperature; typically, solubility increases with temperature, enhancing its dissolving ability in warmer water.
  • Reaction with Water: When mixed with water, dipotassium hydroxide generates an exothermic reaction, which produces heat, indicating its vigorous dissolution.

In summary, the strong solubility of dipotassium hydroxide in water, characterized by its exothermic nature and ability to form alkaline solutions, highlights its importance in both industrial and laboratory settings. As a water-soluble compound, it plays a crucial role in various chemical processes.

Interesting facts

Interesting Facts About Dipotassium Hydroxide

Dipotassium hydroxide, often represented as K2O + H2O, is a fascinating compound with a rich array of applications and characteristics. Here are some notable facts:

  • Source of Alkalinity: As a strong base, dipotassium hydroxide plays a vital role in neutralizing acids and is frequently used in various industrial processes to adjust pH levels.

  • Fertilizer Component: This compound is a significant source of potassium, an essential nutrient for plant growth. It is commonly found in agricultural fertilizers, helping to enhance crop yield and quality.

  • Food Industry Use: Dipotassium hydroxide is also utilized in food processing, particularly as a food additive. It serves various functions including regulating acidity and enhancing texture.

  • Production of Soaps and Detergents: In the chemical industry, dipotassium hydroxide is used in the production of soaps and detergents due to its ability to saponify fats and oils.

  • Biochemistry Applications: In the laboratory, it is employed in biochemical experiments, particularly in the extraction and analysis of various biological compounds.

  • Safety Precautions: Like many strong bases, careful handling is necessary. It can be corrosive and cause chemical burns, which reinforces the need for appropriate safety gear during its use.

Chemistry enthusiasts will appreciate the versatile nature of dipotassium hydroxide and its importance across various fields. As you explore its applications further, keep in mind:

"The chemistry of everyday life is filled with compounds that make a difference; dipotassium hydroxide is one of those unsung heroes!"
Synonyms
dipotassium;hydroxide
Potassium oxide (KO)
Dipotassium monohydroxide
12401-70-6
Potassium monoxide [UN2033] [Corrosive]