Sodium Sulphate Anhydrous 500g

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Sodium sulfate anhydrous, also known as anhydrous sodium sulfate or disodium sulfate, is a chemical compound with the formula Na2SO4. It is a white, crystalline powder that is soluble in water.

Here are some key properties of sodium sulfate anhydrous:

  • Chemical formula: Na2SO4
  • Appearance: White, crystalline powder
  • Odor: Odorless
  • Solubility: Soluble in water, insoluble in most organic solvents
  • Melting point: 884 °C (1623 °F)
  • Boiling point: 1400 °C (2552 °F)
  • Hygroscopic: Yes (absorbs moisture from the air)


Sodium Sulphate Anhydrous

Sodium sulfate anhydrous, particularly due to its hygroscopic nature and lack of reactivity with most other chemicals, has several important laboratory uses. Here are some of the most common ones:

  • Drying Agent: This is perhaps the most widespread laboratory application of sodium sulfate anhydrous. It efficiently removes water from organic solvents. Organic solvents are often used in reactions and experiments, but even small traces of water can interfere with the reaction or affect the results. Sodium sulfate anhydrous is a preferred drying agent because it is:
    • Chemically inert: It does not react with most other chemicals, minimizing the risk of unwanted side reactions in the experiment.
    • Efficient: It has a high affinity for water and can effectively remove moisture from solvents.
  • Desiccating Agent: In laboratory setups where moisture control is crucial, anhydrous sodium sulfate is used as a desiccant to absorb moisture from the air. This helps maintain a dry environment and prevent moisture-sensitive chemicals or experiments from being compromised. For instance, desiccators, which are containers used to store moisture-sensitive chemicals or dry samples, often contain sodium sulfate anhydrous at the bottom to absorb any moisture that might enter.
  • Karl Fischer Titration: This is an analytical technique used to determine the water content in a sample. Sodium sulfate anhydrous is employed as a desiccant during this process to ensure the complete removal of water from the reaction vessel before the titration begins.
SKU: ACS17764CHEM0 Category:

Even though sodium sulfate anhydrous is generally considered a low-hazard material, it’s important to follow proper safety precautions when handling it in a laboratory setting to prevent irritation and potential health risks. Here are some key safety practices to remember:

  • Personal Protective Equipment (PPE):

    • Wear gloves: This protects your skin from contact with sodium sulfate anhydrous, which can cause dryness or irritation.
    • Wear eye protection: Safety glasses or goggles shield your eyes from dust particles that may become airborne during handling.
    • Consider a dust mask: If working with significant quantities or in poorly ventilated areas, a dust mask can help prevent inhalation of dust particles.
  • Ventilation:

    • Work in a well-ventilated area: This helps to disperse any dust particles that may become airborne and minimizes the risk of inhalation.
    • Use a fume hood if available: For procedures that generate significant dust, using a fume hood provides additional protection by containing airborne particles.
  • Minimize dust generation:

    • Handle sodium sulfate anhydrous carefully to avoid creating dust.
    • Transfer it slowly and avoid creating unnecessary agitation.
  • Hygiene:

    • Wash your hands thoroughly with soap and water after handling sodium sulfate anhydrous.
    • Avoid eating, drinking, or smoking in the laboratory to prevent accidental ingestion of the substance.
  • Storage:

    • Keep the container tightly sealed when not in use.
    • Store in a cool, dry place: This helps prevent the hygroscopic sodium sulfate anhydrous from absorbing moisture from the air and clumping.
  • Disposal:

    • Follow your laboratory’s specific procedures for waste disposal. Sodium sulfate anhydrous can usually be disposed of with regular laboratory waste, but it’s best to check with your waste management department for any specific requirements.

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