Sodium Sulfite – CAS 7757-83-7

Sodium Sulfite (CAS 7757-83-7) is supplied by Rexar as an analytical chemical for laboratory and technical applications. The compound is commonly used as a laboratory reagent, reducing agent and analytical reagent within controlled laboratory environments.

This material is supplied for analytical, technical and research purposes only.

Rexar Technical Compound Datasheet (PDF)

Safety Data Sheet (SDS)

Documentation: View the SDS and Technical Datasheet for this product, or browse our Technical Documentation library.

PubChem Compound Information

Technical Information

• Chemical name: Sodium sulfite
• CAS Number: 7757-83-7
• EC Number: 231-821-4
• Molecular formula: Na₂SO₃
• Molecular weight: 126.05 g/mol
• Appearance: White crystalline powder or crystals
• Density: Approximately 2.63 g/cm³
• Solubility: Soluble in water
• Flammability: Non-flammable

Laboratory Use

Sodium Sulfite is widely used in analytical chemistry, reagent preparation, reducing applications, quality control procedures and laboratory research. The material is supplied in sealed laboratory packaging and intended exclusively for professional, technical and scientific use.