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Sodium Acetate

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Identification
Molecular formula
NaC2H3O2
CAS number
127-09-3
IUPAC name
sodium;acetic acid;acetate
State
State

Sodium acetate is typically in a solid state at room temperature as it forms crystals.

Melting point (Celsius)
324.00
Melting point (Kelvin)
597.00
Boiling point (Celsius)
881.40
Boiling point (Kelvin)
1 154.50
General information
Molecular weight
82.03g/mol
Molar mass
82.0340g/mol
Density
1.5280g/cm3
Appearence

Sodium acetate is a white, hygroscopic crystalline powder with a slight acetic acid odor. It can also occur in granular or flake form, and is often encountered in its trihydrate form, which appears as colorless crystals.

Comment on solubility

Solubility of Sodium Acetate

Sodium acetate, with the chemical formula NaC2H3O2, is known for its interesting solubility characteristics. Here are key points regarding its solubility:

  • Highly Soluble in Water: Sodium acetate is highly soluble in water, making it easy to use in various applications, particularly in biochemical and laboratory settings.
  • Temperature Dependence: The solubility of sodium acetate increases with temperature. This means that more of the compound can dissolve in water when the temperature rises.
  • Low Solubility in Organic Solvents: Unlike its high solubility in water, sodium acetate exhibits low solubility in organic solvents such as ethanol and ether, limiting its use in certain organic reactions.

To quote a common observation, "Sodium acetate's water solubility allows for its extensive use in buffer solutions, food preservation, and heating pads." Therefore, it is prized not just for its function, but also for its ease of use in aqueous environments.

In summary, sodium acetate's solubility profile is a testament to its versatility, showing significant promise in both practical applications and research environments.

Interesting facts

Interesting Facts About Sodium Acetate

Sodium acetate is a fascinating compound with diverse applications and properties that make it a subject of interest for both chemists and students alike.

  • Dual Properties: Sodium acetate can exhibit both acidic and basic properties, functioning as a salt formed from the reaction of acetic acid and sodium hydroxide.
  • Versatile Applications: This compound plays a role in various industries such as:
    • Food industry – often used as a flavoring agent.
    • Textile industry – utilized in dyeing processes.
    • Heating pads – sodium acetate can be used in reusable hot packs due to its ability to store thermal energy.
  • pH Buffering: Sodium acetate is an important component in buffer solutions, helping to maintain a stable pH in biochemical applications.
  • Historical Significance: The compound has been used in food preservation for centuries. Its role as a preservative highlights the historical connection between chemistry and culinary practices.

Moreover, the reaction of sodium acetate can be quite dramatic – when mixed with water, it can form a supersaturated solution. This characteristic can lead to exciting demonstrations of crystallization, engaging both students and enthusiasts in the wonders of chemistry.

In the words of notable chemists: "Chemistry is the Science of Transformation." Sodium acetate embodies this principle by transforming physical states through various chemical reactions, making it a prime example of how fundamental chemistry impacts our daily lives.