سلفيت الصوديوم (كبريتيت الصوديوم)
| Kind | Excipient |
|---|---|
| Class | Antioxidants, chelators & preservatives — sulfite antioxidant |
| Synonyms | Na2SO3, anhydrous sodium sulfite, sodium sulfite heptahydrate, E221 |
| Common uses / forms | Water-soluble antioxidant in parenteral and oral solutions; anhydrous and heptahydrate grades; typical 0.01-0.2% |
| Properties | White crystalline powder, water-soluble; anhydrous form preferred for stability, heptahydrate loses water and oxidizes readily; less effective than metabisulfite at low pH |
| Compendia | USP, EP, BP |
| Sourcing origins | China, EU, India |
| Dominant inbound route | Hormuz |
| Indicative price band | $ (< $10 / kg) |
| Indicative lead time | short (30–50 days) |
| Notes | Sulfite-sensitivity labeling; specify anhydrous vs heptahydrate on assay basis; oxidizes to sulfate on storage, keep sealed |
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Cite as: AUPAM Experts' Office, Sodium sulfite — sourcing profile (Excipient) — AUPAM Data Bank, retrieved 2026-08-31, https://aupameo.org/datasets/databank/e-sodium-sulfite.html