Molekula
Sodium persulfate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Sodium persulfate is an inorganic oxidizing agent used in chemical synthesis, water treatment, and as a polymerization initiator. It is a white crystalline powder with high solubility in water. CAS: 7775-27-1, Molecular formula: Na2O8S2, Molecular weight: 238.11 g/mol, stored at ambient temperature. Signal word: Danger. Molekula supplies Sodium persulfate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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500 g — £71.50 per pack ex VAT · £85.80 inc. VAT
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White to Off-white powder |
| Water | ≤0.15 % |
| Heavy metals | ≤20 ppm |
| Iron (Fe) | ≤10 ppm |
| Identification (IR) | Conforms to structure |
| Nitrogen (N) | ≤0.2 % |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 5.1 |
| Packing Group | III |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 46270466 |
| CAS Number | 7775-27-1 |
| IUPAC Name | disodium;sulfonatooxy sulfate |
| EC Number | 231-892-1 |
| Molecular Formula | Na2O8S2 |
| Molecular Weight | 238.11 |
| Exact Mass | 237.883 |
| SMILES | [O-]S(=O)(=O)OOS(=O)(=O)[O-].[Na+].[Na+] |
| InChIKey | CHQMHPLRPQMAMX-UHFFFAOYSA-L |
| InChI | InChI=1S/2Na.H2O8S2/c;;1-9(2,3)7-8-10(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2*+1;/p-2 |
| PubChem CID | 62655 |
| UN Number | UN1505 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2833402000 |
| Tariff Code | 2833400000 |
Safety & GHS
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Oxidizing
GHS03
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
Hazard statements
- H272 May intensify fire; oxidizer
- H302 Harmful if swallowed
- H317 May cause an allergic skin reaction
- H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
- H335 May cause respiratory irritation
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P220 Keep/Store away from clothing/combustible materials
- 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
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Russian, Spanish.
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.
Synonyms
- DISODIUM PEROXODISULFATE
- Disodium peroxydisulfate
- ORISTAR SP
- Peroxydisulfuric acid (((HO)S(O)2)2O2), disodium salt
- Peroxydisulfuric acid (((HO)S(O)2)2O2), sodium salt (1:2)
- Peroxydisulfuric acid, disodium salt
- Persulfate de sodium
- Sodium peroxodisulfate
- Sodium peroxydisulfate
- SODIUM PERSULFATE (NA2S2O8)
Frequently asked questions
What is sodium persulfate used for?
Sodium persulfate is commonly used as an oxidizing agent in chemical synthesis, water treatment, and as a catalyst in polymerization reactions.
What is the chemical formula and molecular weight of sodium persulfate?
The formula is Na2O8S2 and the molecular weight is 238.11 g/mol.
How should sodium persulfate be stored?
It should be stored at ambient temperature in a dry, well-ventilated area away from incompatible materials.
What grade of sodium persulfate does Molekula supply?
Molekula supplies sodium persulfate in reagent grade, suitable for laboratory and industrial applications.
Can Molekula supply sodium persulfate in bulk?
Yes, Molekula can supply sodium persulfate in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a sodium persulfate order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) compliant with GHS standards.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.