Molekula
Sodium acetate trihydrate
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 acetate trihydrate is a white crystalline solid used as a buffer in biochemical applications and in heating pads. It is also employed in food preservation and industrial processes. Other documented applications include photographic processing, use as a mordant in textile dyeing and printing, and formulation of dialysis solutions. CAS: 6131-90-4, Molecular formula: CH3COONa·3H2O, Molecular weight: 136.08, Storage: Ambient, Signal word: None. Molekula supplies Sodium acetate trihydrate 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.
Often bought together
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 — £30.00 per pack ex VAT · £36.00 inc. VAT
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1 kg — £43.40 per pack ex VAT · £52.08 inc. VAT
Need a different quantity or pack?
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 crystals |
| pH | 8.0 - 9.0 (5% aq.) |
| Solubility | Freely soluble in water |
| Assay | ⩾ 99.0% |
| Identification (IR) | Conforms to Reference |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 324 °C |
Source: PubChem CID 23665404 (PAC Chemical Database)
Identification
| Property | Value |
|---|---|
| SKU | 12000052 |
| CAS Number | 6131-90-4 |
| IUPAC Name | sodium;acetate;trihydrate |
| Molecular Formula | CH3COONa·3H2O |
| Molecular Weight | 136.08 |
| Exact Mass | 136.0348 |
| SMILES | CC(=O)[O-].O.O.O.[Na+] |
| InChIKey | AYRVGWHSXIMRAB-UHFFFAOYSA-M |
| InChI | InChI=1S/C2H4O2.Na.3H2O/c1-2(3)4;;;;/h1H3,(H,3,4);;3*1H2/q;+1;;;/p-1 |
| PubChem CID | 23665404 |
| REACH Code | Y113 |
| HTS Code | 29152920 |
| Tariff Code | 2915290000 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, 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
- Acetic acid, sodium salt, trihydrate
- AcONa.3H2O
- C2H9NaO5
- CH3CO2Na.3H2O
- Natrium acetate-3-wasser
- natriumacetate trihydrate
- Plasmafusin
- Sodium acetate trihydrate; Sodium ethanoate trihydrate
- Thomaegelin
- Tutofusin
Frequently asked questions
What is sodium acetate trihydrate used for?
It is commonly used as a buffer in biochemical applications and as a vinegar-like flavouring and seasoning, for example in salt-and-vinegar crisps, as well as in food preservation and heating pads.
What is the chemical formula and molecular weight?
The formula is CH3COONa·3H2O with a molecular weight of 136.08 g/mol.
How should sodium acetate trihydrate be stored?
It should be stored at ambient temperature, protected from moisture and heat.
What grade is available?
Available in laboratory grade; other grades may be available upon request.
Can Molekula supply it in bulk?
Yes, Molekula can supply sodium acetate trihydrate in bulk quantities—please contact us for pricing and availability.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA); additional documentation such as SDS can be provided upon request.
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.