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Alkali Metal Compounds (Li, Na, K, Rb, Cs)

Sodium sulphite ACS reagent, ≥99.5%

ACSAvailable on request

Sodium sulphite ACS reagent, ≥99.5% (CAS 7757-83-7) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery.

Pack sizes
Sodium sulphite ACS reagent, ≥99.5% chemical structure
CAS number7757-83-7
FormulaNa2O3S
Molar mass126.05 g/mol
Physical formCrystalline
HS code28321090
Purity≥99.5%
InChIKeyGEHJYWRUCIMESM-UHFFFAOYSA-L
IUPAC namedisodium;sulfite

About Sodium sulphite ACS reagent, ≥99.5%

Sodium sulphite ACS reagent, ≥99.5% sits in our alkali Metal Compounds (Li, Na, K, Rb, Cs) section and ships worldwide from stock or short lead time. Key data (ACS): CAS 7757-83-7, formula Na2O3S and molar mass 126.05 g/mol. It is described as white powder or crystals.

Common uses in the lab and plant

  • Dyes & pigments manufacture
  • Materials research

Safe handling

Classified under GHS with signal word Danger and hazard statements H302, H314, H315 and H319. Read the SDS before first use.

Available as 500 g, 2.5 kg and 4 x 25 kg. Larger or split packs can be arranged. Every shipment includes a batch certificate of analysis and a 16-section SDS. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Typical uses

  • Dyes & pigments manufacture
  • Materials research

Applications

Research Labs and Universities

Grade guides

ACS Grade

Specifications and identifiers

Specifications of Sodium sulphite ACS reagent, ≥99.5%
Product nameSodium sulphite ACS reagent, ≥99.5%
Catalogue numberZX-013296
CAS number7757-83-7
IUPAC namedisodium;sulfite
Molecular formulaNa2O3S
Molar mass126.05 g/mol
Exact mass125.9364
GradeACS
Purity / assay≥99.5%
Physical formCrystalline
AppearanceWhite powder or crystals
H-bond donors / acceptors0 / 4
Topological polar surface area82.4 Ų
HS code28321090
InChIKeyGEHJYWRUCIMESM-UHFFFAOYSA-L
SMILES[O-]S(=O)[O-].[Na+].[Na+]
PubChem CID24437
SynonymsDisodium sulfite, Sodium sulfite anhydrous, Sodium sulphite, Sulfurous acid, disodium salt, Natrium sulfurosum, S-WAT, Natrii sulphis, Anhydrous sodium sulfite, Sodium sulfite (Na2SO3), Exsiccated sodium sulfite, Natrum sulphurosum, Sodium sulphite anhydrous

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS05 Corrosive
Corrosive
GHS07 Irritant or harmful
Irritant or harmful

Signal word Danger

  • H302Harmful if swallowed
  • H314Causes severe skin burns and eye damage
  • H315Causes skin irritation
  • H319Causes serious eye irritation

Precautionary statements P260, P264, P264 + P265, P270, P280, P301 + P317, P301 + P330 + P331, P302 + P352, P302 + P361 + P354, P304 + P340, P305 + P351 + P338, P305 + P354 + P338, P316, P321, P330, P332 + P317, P337 + P317, P362 + P364, P363, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Sodium sulphite ACS reagent, ≥99.5%
500 gQuoted on request
2.5 kgQuoted on request
4 x 25 kgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Sodium sulphite ACS reagent, ≥99.5%

Which CAS number identifies Sodium sulphite ACS reagent, ≥99.5%?
Sodium sulphite ACS reagent, ≥99.5% is registered under CAS 7757-83-7. You may also see it listed as Disodium sulfite, Sodium sulfite anhydrous, Sodium sulphite. Our catalogue number for this item is ZX-013296.
What are the formula and molar mass of Sodium sulphite ACS reagent, ≥99.5%?
For Sodium sulphite ACS reagent, ≥99.5%, its formula is Na2O3S and its molar mass is 126.05 g/mol. InChIKey GEHJYWRUCIMESM-UHFFFAOYSA-L lets you match it in any structure database.
What grade and pack sizes are available for Sodium sulphite ACS reagent, ≥99.5%?
This listing is ACS grade with ≥99.5% purity. Standard packs are 500 g, 2.5 kg, 4 x 25 kg. Larger quantities and custom packing can be quoted on request.
Which documents come with Sodium sulphite ACS reagent, ≥99.5%?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Sodium sulphite ACS reagent, ≥99.5% to my country?
Yes. Because Sodium sulphite ACS reagent, ≥99.5% is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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