Molekula
Sodium sulfite heptahydrate
Sodium sulfite heptahydrate is a water-soluble inorganic compound used as a reducing agent, antioxidant, and preservative in industrial and laboratory applications. It is commonly employed in photographic processing, water treatment, and chemical synthesis. Available with CAS number 10102-15-5, molecular formula Na2SO3·7H2O, and molecular weight 126.04 g/mol. Stored at ambient temperatures. Signal word: Danger. Molekula supplies Sodium sulfite heptahydrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
Sodium sulfite heptahydrate is a water-soluble inorganic compound used as a reducing agent, antioxidant, and preservative in industrial and laboratory applications. It is commonly employed in photographic processing, water treatment, and chemical synthesis. Available with CAS number 10102-15-5, molecular formula Na2SO3·7H2O, and molecular weight 126.04 g/mol. Stored at ambient temperatures. Signal word: Danger. Molekula supplies Sodium sulfite heptahydrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Specifications
| Property | Value |
|---|---|
| Appearance | White solid |
| Purity | ≥ 98.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Shelf Life | 24 months |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| CAS Number | 10102-15-5 |
| Molecular Formula | Na2SO3 . 7H2O |
| Molecular Weight | 126.04 |
| SMILES | O.O.O.O.O.O.O.[O-]S(=O)[O-].[Na+].[Na+] |
| REACH Code | Y110 |
| HTS Code | 28321000 |
| Tariff Code | 2832100000 |
Safety & GHS
-
Explosive
GHS01
-
Compressed Gas
GHS04
Hazard statements
- H302 Harmful if swallowed
- H318 Causes serious eye damage
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P337+313 If eye irritation persists get medical advice/attention
For research and industrial use only
Documents
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Pricing & pack sizes
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is sodium sulfite heptahydrate used for?
It is commonly used as a reducing agent in industrial processes, such as in the pulp and paper industry, and as a preservative in food and pharmaceuticals.
What is the chemical formula and molecular weight of sodium sulfite heptahydrate?
The formula is Na2SO3·7H2O and the molecular weight is 126.04 g/mol.
How should sodium sulfite heptahydrate be stored?
It should be stored at ambient temperature, protected from moisture and heat.
What grade of sodium sulfite heptahydrate does Molekula offer?
Molekula supplies sodium sulfite heptahydrate in reagent grade.
Can Molekula supply sodium sulfite heptahydrate in bulk?
Yes, Molekula can supply sodium sulfite heptahydrate in bulk quantities upon request.
What documentation comes with an order of sodium sulfite heptahydrate?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
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