Sodium Pyrosulfite ( metabisulfite ) metabisulphite Na2S2O5 - 25 000g = 25kg bag

SODIUM METABISULFITE

- Synonyms: sodium pyrosulfite
- CAS:7681-57-4
- WE (EINECS): 231-673-0
- Formula: Na₂S₂O₅

Description:
Sodium metabisulfite is a white or colorless crystalline powder with a strong sulfur dioxide odor. It is commonly used as a reducing agent, preservative, and disinfectant in industries such as water treatment, and chemical laboratories. It also finds applications in bleaching and as a reagent in various chemical syntheses. Sodium metabisulfite reacts with acids to release sulfur dioxide gas, which can pose health risks, especially in poorly ventilated spaces.

Safety Data:

• Hazard Statement(s) (H):

  • H332: Harmful if inhaled.
  • H315: Causes skin irritation.
  • H319: Causes serious eye irritation.
  • H335: May cause respiratory irritation.

• Precautionary Statement(s) (P):

  • P261: Avoid breathing dust/fume/gas/mist/vapors/spray.
  • P264: Wash hands thoroughly after handling.
  • P280: Wear protective gloves/eye protection/face protection.
  • P304+P340: IF INHALED: Remove person to fresh air and keep comfortable for breathing.
  • P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.
  • P312: Call a POISON CENTER or doctor/physician if you feel unwell.

Pictograms:

• GHS07 (Exclamation Mark): Number 09 – Indicates irritation to skin, eyes, and respiratory system.

Notes:

Sodium metabisulfite is a reactive chemical that may cause irritation to the skin, eyes, and respiratory system. It releases sulfur dioxide gas when in contact with acids, which can be hazardous in confined spaces or poorly ventilated areas. When handling sodium metabisulfite, use appropriate personal protective equipment (PPE) including gloves, eye protection, and adequate ventilation. Always consult the Safety Data Sheet (SDS) for specific handling, storage, and disposal guidelines.