Molekula
Bisulfite de sodium (hydrogénosulfite de sodium) solution aqueuse à 38 %
Sodium bisulfite (Sodium hydrogen sulfite) 38% aqueous solution
Certifié ISO 9001:2015 & ISO 14001:2015 · Fournisseur pour laboratoires et industries depuis 2000 · Certificat d’Analyse (CoA) pour chaque lot
Sodium bisulfite (sodium hydrogen sulfite) is a versatile reducing agent and antioxidant widely used in food preservation, water treatment, photography, and chemical synthesis to prevent oxidation, dechlorinate water, and stabilize solutions. This 38% aqueous solution has a CAS number of 7631-90-5, with the molecular formula NaHSO3 and a molecular weight of 104.06. It requires ambient storage conditions and carries no signal word. Molekula supplies sodium bisulfite from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Aperçu
Sodium bisulfite (sodium hydrogen sulfite) is a versatile reducing agent and antioxidant widely used in food preservation, water treatment, photography, and chemical synthesis to prevent oxidation, dechlorinate water, and stabilize solutions. This 38% aqueous solution has a CAS number of 7631-90-5, with the molecular formula NaHSO3 and a molecular weight of 104.06. It requires ambient storage conditions and carries no signal word. Molekula supplies sodium bisulfite from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Prix et formats de conditionnement
Prix sur demande — emballages disponibles de la recherche à la quantité industrielle.
Les prix ne comprennent pas la TVA, les taxes sur les ventes ni les frais d'expédition. Des emballages en grande quantité et sur mesure sont disponibles sur demande.
Spécifications
| Property | Value |
|---|---|
| Appearance | Clear light yellow liquid |
| Heavy metals | ≤ 5ppm |
| Chloride (Cl-) | ≤ 120ppm |
| Assay | ⩾ 38.0% |
| Water insoluble matter | ≤ 20ppm |
| Sulphates (SO4)(2-) | ≤1.0% |
| Ferric salt | ≤ 10ppm |
Stockage et manipulation
| Property | Value |
|---|---|
| Température de stockage | Ambient |
| Acidité | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90037466 |
| Numéro CAS | 7631-90-5 |
| Formule moléculaire | NaHSO3 |
| Masse moléculaire | 104.06 |
| SMILES | [Na].O=S(O)O |
| Code REACH | Y113 |
| Inscrit au TSCA | Oui |
| Code HTS | 28321000 |
| Code tarifaire | 2832100000 |
Sécurité et GHS
Déclarations de danger
- H303 Peut être nocif en cas d'ingestion.
Déclarations de précaution
- P264 Se laver ... soigneusement après manipulation.
- P280 Porter des gants de protection/des vêtements de protection/un équipement de protection des yeux/du visage/une protection auditive/...
- P301+312 EN CAS D'INGESTION : appeler un CENTRE ANTIPOISON/un médecin/.../ en cas de malaise.
Documents
Fiches de données de sécurité (FDS)
Disponible en English, French, German, Italian, Portuguese, Spanish.
Certificat d'analyse (CoA) par lot
Saisissez un numéro de lot ou de série pour récupérer le certificat d'analyse correspondant à ce lot spécifique. Nous pouvons en générer un à partir des données de spécification si aucun PDF n'est disponible.
Synonymes
Aucun autre nom enregistré pour ce produit.
Questions fréquentes
What is sodium bisulfite (38% aqueous solution) commonly used for?
This solution is primarily used as a reducing agent in photography, food preservation (as an antioxidant/preservative, e.g., E222), and as a bleach inhibitor in textiles and paper industries. It’s also employed in water treatment and pH adjustment.
What is the chemical formula and molecular weight of sodium bisulfite?
The chemical formula is **NaHSO₃**, and the molecular weight is **104.06 g/mol** for the anhydrous form.
How should sodium bisulfite (38% aqueous solution) be stored?
Store in a tightly sealed container at **ambient temperature**, away from strong oxidizing agents, heat, and direct sunlight. Avoid contamination with metals or acidic substances.
What grades or purities of sodium bisulfite solution does Molekula supply?
Molekula supplies this product as a **38% aqueous solution** (technical grade), suitable for industrial, food-grade (where compliant with local regulations), and laboratory applications.
Can Molekula supply sodium bisulfite in bulk quantities?
Yes, we offer **bulk quantities** (drums, IBCs, or tanker loads) of sodium bisulfite solution, with flexible packaging options to meet your specific requirements. Minimum order quantities may apply.
What documentation is provided with a sodium bisulfite order?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS/SDS), and a product specification sheet. For food-grade applications, additional compliance documentation (e.g., FDA or EU food-grade certifications) may be provided upon request.
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