Sodium Bisulfite 40% ACS Grade

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Sodium Bisulfite 40% ACS Grade: A Comprehensive Overview




Sodium Bisulfite, represented chemically as NaHSO₃, is a compound that, when in solution, exhibits acidic properties. The 40% ACS Grade implies that the solution consists of 40% sodium bisulfite by weight, and it meets the high-quality standards set by the American Chemical Society (ACS).


Physical and Chemical Properties


Molecular Formula: NaHSO₃

Appearance: White crystalline solid (in pure form)

Solution pH: Acidic


Common Uses in the Laboratory


Sodium Bisulfite 40% ACS Grade is employed in various laboratory applications:

  • Preservative: Acts as a preservative in many pharmaceutical and food products.
  • Dechlorination: Used in water treatment to remove excess chlorine.
  • Chemical Synthesis: Serves as a reagent in organic synthesis, particularly in the conversion of aldehydes to their corresponding alkenes.


Handling and Storage


It’s crucial to handle sodium bisulfite solutions with care, considering their acidic nature:

  1. Work in well-ventilated areas or under a fume hood to avoid inhaling any vapors or mist.
  2. Wear appropriate personal protective equipment, including gloves, safety goggles, and lab coats.
  3. Store in a cool, dry place, away from incompatible substances like strong bases or oxidizing agents.


Health and Safety


Exposure to sodium bisulfite can pose some health risks. Inhalation can lead to respiratory irritation. Ingestion might cause gastrointestinal distress. Skin contact can result in irritation or allergic reactions in some individuals. It’s essential to consult the MSDS (Material Safety Data Sheet) and be familiar with its content when working with this chemical.


Environmental Impact


Releasing high concentrations of sodium bisulfite into the environment can have harmful effects on aquatic life due to its ability to deplete oxygen. It’s crucial to ensure proper disposal methods are used, adhering to local regulations and guidelines.




Sodium Bisulfite 40% ACS Grade is a valuable compound in various industries and laboratory applications. With its diverse uses and properties, it’s imperative to handle and dispose of it responsibly, ensuring the safety of both individuals and the environment.