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

Sodium Metabisulfite, EP/Ph. Eur.

EP/Ph. Eur.Available on request

Sodium Metabisulfite, EP/Ph. Eur. (CAS 7681-57-4) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery.

Pack sizes
Sodium Metabisulfite, EP/Ph. Eur. chemical structure
CAS number7681-57-4
FormulaNa2O5S2
Molar mass190.11 g/mol
HS code28321090
InChIKeyHRZFUMHJMZEROT-UHFFFAOYSA-L

About Sodium Metabisulfite, EP/Ph. Eur.

Sodium Metabisulfite, EP/Ph. Eur. is part of the Zemixal alkali Metal Compounds (Li, Na, K, Rb, Cs) range. Key data (EP/Ph. Eur.): CAS 7681-57-4, formula Na2O5S2 and molar mass 190.11 g/mol.

Common uses in the lab and plant

  • Materials research
  • Chemical synthesis

Storage and safety notes

It carries the GHS signal word Danger (H302 and H318), so wear gloves and eye protection and work with good ventilation.

Order it in 500 g, 5 kg, 25 kg and 50 kg (5 x 10) packs or ask for a bulk quotation. You receive a batch certificate of analysis and a 16-section SDS with each order. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Typical uses

  • Materials research
  • Chemical synthesis

Applications

Research Labs and Universities

Grade guides

Ph. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of Sodium Metabisulfite, EP/Ph. Eur.
Product nameSodium Metabisulfite, EP/Ph. Eur.
Catalogue numberZX-038512
CAS number7681-57-4
Molecular formulaNa2O5S2
Molar mass190.11 g/mol
Exact mass189.8983
GradeEP/Ph. Eur.
H-bond donors / acceptors0 / 6
Topological polar surface area125 Ų
HS code28321090
InChIKeyHRZFUMHJMZEROT-UHFFFAOYSA-L
SMILES[O-]S(=O)S(=O)(=O)[O-].[Na+].[Na+]
PubChem CID656671
SynonymsSodium pyrosulfite, Sodium disulfite, Disodium pyrosulfite, Natrii disulfis, Disodium metabisulfite, Natrium pyrosulfit, sodium pyrosulphite, Sodium bisulfite anhydrous, Natrium metabisulfurosum, Sodium pyrosulfite (Na2S2O5), Disodium pentaoxodisulfate, INS NO.223

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
  • H318Causes serious eye damage

Precautionary statements P264, P264 + P265, P270, P280, P301 + P317, P305 + P354 + P338, P317, P330, 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 Metabisulfite, EP/Ph. Eur.
500 gQuoted on request
5 kgQuoted on request
25 kgQuoted on request
50 kg (5 x 10)Quoted 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 Metabisulfite, EP/Ph. Eur.

Which CAS number identifies Sodium Metabisulfite, EP/Ph. Eur.?
Sodium Metabisulfite, EP/Ph. Eur. is registered under CAS 7681-57-4. You may also see it listed as Sodium pyrosulfite, Sodium disulfite, Disodium pyrosulfite. Our catalogue number for this item is ZX-038512.
What are the formula and molar mass of Sodium Metabisulfite, EP/Ph. Eur.?
For Sodium Metabisulfite, EP/Ph. Eur., its formula is Na2O5S2 and its molar mass is 190.11 g/mol. InChIKey HRZFUMHJMZEROT-UHFFFAOYSA-L lets you match it in any structure database.
What grade and pack sizes are available for Sodium Metabisulfite, EP/Ph. Eur.?
This listing is EP/Ph. Eur. grade. Standard packs are 500 g, 5 kg, 25 kg, 50 kg (5 x 10). Larger quantities and custom packing can be quoted on request.
Which documents come with Sodium Metabisulfite, EP/Ph. Eur.?
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 Metabisulfite, EP/Ph. Eur. to my country?
Yes. Because Sodium Metabisulfite, EP/Ph. Eur. 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.

Other grades with CAS 7681-57-4

All 7 grades

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