Promotional price valid on web orders only. Your contract pricing may differ. Interested in signing up for a dedicated account number?
Learn More
  1. Home
  2. Products
  3. Chemicals
  4. Salts and Inorganics
  5. Inorganic Salts
  6. Alkali Metal Salts
  7. M1063575000

Sodium disulfite (sodium metabisulfite), 100.0%, EMPROVE™ ESSENTIAL Ph Eur, BP, JP, NF, E 223, MilliporeSigma™

Catalog No. M1063575000
Click to view available options
Quantity:
5 kg
This item is not returnable. View return policy
This item is not returnable. View return policy

Chemical Identifiers

CAS 7681-57-4
Molecular Formula Na2O5S2
Molecular Weight (g/mol) 190.11
Synonym Sodium metabisulfite, Sodium pyrosulfite, Disulfite, Pyrosulfite

Specifications

Melting Point 150°C (decomposition)
pH 3.5 to 5 (50 g/L, H2O, 20°C)
Quantity 5 kg
Assay Percent Range Assay (iodometric): 97.0 to 100.0%; Assay (iodometric, SO2): 65.4 to 67.4%
Solubility Information 650 g/L
Packaging Plastic Bottle
Density 2.36 g/cm3 (at 20°C); Bulk Density: 1000 to 1200 kg/m3

Safety and Handling

Recommended Storage Store at 5 to 30°C
Product Content Correction

Your input is important to us. Please complete this form to provide feedback related to the content on this product.

Product Title

By clicking Submit, you acknowledge that you may be contacted by Fisher Scientific in regards to the feedback you have provided in this form. We will not share your information for any other purposes. All contact information provided shall also be maintained in accordance with our Privacy Policy.

Your feedback has been submitted: Thank you for helping us improve our website.