Molekula
Potassium acetate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Potassium acetate (CH3COOK) is an organic salt, the potassium salt of acetic acid, widely used as a de-icing agent, food additive (E261), and buffer in pharmaceuticals and chemical synthesis. It appears as a white, deliquescent crystalline solid with a mild acetic acid odor. Key specifications include a CAS number of 127-08-2, molecular weight of 98.14 g/mol, and storage stability at ambient conditions with no signal word classification.
Molekula supplies Potassium acetate at ⩾ 98.5% purity in 500 g packs, from £37.20 inc. VAT. It is in stock for same-day dispatch. Every batch ships with a certificate of analysis, and safety data sheets are available in 6 languages. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
In stock — same-day dispatch
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 — £31.00 per pack ex VAT · £37.20 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 powder |
| Loss on Drying | ≤ 1.0% (150°C, 2 hours) |
| Chloride (Cl-) | ≤ 0.005% |
| Assay | ⩾ 98.5% |
| Heavy Metals (Pb) | ≤ 0.005% |
| Identification (IR) | Conforms to reference |
| Sulphates (SO4)(2-) | ≤ 0.005% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 292 °C |
Source: PubChem CID 517044 (ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 90036101 |
| CAS Number | 127-08-2 |
| IUPAC Name | potassium acetate |
| EC Number | 204-822-2 |
| Molecular Formula | CH3COOK |
| Molecular Weight | 98.14 |
| Exact Mass | 97.977 |
| SMILES | CC(=O)[O-].[K+] |
| InChIKey | SCVFZCLFOSHCOH-UHFFFAOYSA-M |
| InChI | InChI=1S/C2H4O2.K/c1-2(3)4;/h1H3,(H,3,4);/q;+1/p-1 |
| PubChem CID | 517044 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29152100 |
| Tariff Code | 2915290000 |
Safety & GHS
Hazard statements
- H303 May be harmful if swallowed
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P403+233 Store in a well ventilated place. Keep container tightly closed
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, 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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- ACETIC ACID, POTASSIUM SALT
- Acetic acid, potassium salt (1:1)
- Diuretic salt
- FEMA No. 2920
- INS NO.261
- Kali aceticum
- Octan draselny
- Potassium acetate in plastic container
- Potassium acetates
- Potassium ethanoate
Frequently asked questions
What is potassium acetate commonly used for?
Potassium acetate is primarily used as a food additive (E261), in buffering solutions, as a de-icing agent, and in chemical synthesis for producing other potassium salts.
What is the chemical formula and molecular weight of potassium acetate?
The chemical formula is CH₃COOK, and the molecular weight is 98.14 g/mol.
How should potassium acetate be stored?
Store potassium acetate in a tightly sealed container at ambient temperature, away from moisture and incompatible substances.
What grades of potassium acetate does Molekula supply?
Molekula supplies potassium acetate with an assay of ⩾ 98.5%, with chloride, sulphate and heavy metal (Pb) limits of ≤ 0.005% each and loss on drying of ≤ 1.0%; contact us for full specifications.
Can Molekula supply potassium acetate in bulk quantities?
Yes, we offer bulk quantities of potassium acetate; minimum order quantities and packaging options vary—inquire for details.
What documentation comes with a potassium acetate order?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a packing list; additional documentation may be provided upon request.
Where can I buy Potassium acetate?
Directly from Molekula, which lists Potassium acetate in 500 g packs from £37.20 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
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.