Sodium Sulfite, Lab Grade *

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Sodium Sulfite Lab Features:

CAS Number 7757-83-7
Molecular Formula Na2SO3
Formula Weight 126.04
Assay (Na2SO3) 97.0-100.5%
Heavy Meals (as Pb) 10 ppm
Lead 2 mg/kg
Selenium 10 ppm
Thiosulfate To Pass Test
Arsenic 4 ppm
Appearance of Solution To Pass Test
Iron 10 ppm
Zinc 25 ppm


Please contact us to request a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for Sodium Sulfite Lab.

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  • Dear Sir/Madam, I trust that you are having a good day. I am Tohid Jamali, a doctoral student at the University of Liege in Belgium, specializing in hydraulic structure engineering. Our current project involves deoxygenating water by introducing Na2SO3 and CoCl2.6H2O. I would appreciate it if you could provide me with details regarding the cost and availability of Na2SO3 and CoCl2.6H2O, considering we require 1ton and 14kg respectively. Thank you for your assistance. Best regards, Tohid Jamali

    We ship only in US and Canda. 
    Thank you.

  • Does this have a COA? Sodium Sulfite, Lab Grade. Thanks!

    We kindly ask that you contact our customer care team via e-mail at or via phone at 512-668-9928.
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