Molekula
Potassium Stearate
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
Potassium stearate is a potassium salt of stearic acid, commonly used as an emulsifier, stabilizer, and thickening agent in cosmetics, pharmaceuticals, and food products. It also serves as a lubricant, dispersing agent and anti-adhesive processing aid in manufacturing and formulation work. It appears as a white to pale yellow powder or flake. CAS: 593-29-3, Molecular formula: C18H35KO2, Molecular weight: 322.57 g/mol, Storage: Ambient, Signal word: None. Molekula supplies Potassium Stearate 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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100 g — £40.30 per pack ex VAT · £48.36 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 TO OFF-WHITE POWDER OR SOLID OR CHUNKS |
| Heavy metals | 0.001 % max |
| Loss on Drying | 5 % max |
| Assay | 97.5 % min |
| Arsenic (As) | 0.0003 % max |
| Iodine value (g I2/100g) | 4 max |
| Acid Value (mg KOH/g) | 96 - 211 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 89990022 |
| CAS Number | 593-29-3 |
| IUPAC Name | potassium octadecanoate |
| EC Number | 209-786-1 |
| Molecular Formula | C18H35KO2 |
| Molecular Weight | 322.57 |
| Exact Mass | 322.2274 |
| SMILES | CCCCCCCCCCCCCCCCCC(=O)[O-].[K+] |
| InChIKey | ANBFRLKBEIFNQU-UHFFFAOYSA-M |
| InChI | InChI=1S/C18H36O2.K/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20;/h2-17H2,1H3,(H,19,20);/q;+1/p-1 |
| PubChem CID | 23673840 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29159050 |
| Tariff Code | 2915907098 |
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, Portuguese, 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
- E-470(I)STEARIC ACID, POTASSIUM SALT
- INS NO.470(I)STEARIC ACID, POTASSIUM SALT
- INS-470(I)STEARIC ACID, POTASSIUM SALT
- NONSOUL MK 2
- Octadecanoic acid, potassium salt
- Potassium n-octadecanoate
- Potassium octadecanoate
- Potassium stearate, pure
- REXANOL
- Stearic acid, potassium salt
Frequently asked questions
What is potassium stearate used for?
Potassium stearate is commonly used as an emulsifier, stabilizer, and thickening agent in cosmetics, pharmaceuticals, and food products.
What is the chemical formula and molecular weight of potassium stearate?
The formula is C18H35KO2 with a molecular weight of 322.57 g/mol.
How should potassium stearate be stored?
It should be stored at ambient temperature, protected from moisture and heat.
What grade of potassium stearate does Molekula supply?
Molekula supplies potassium stearate in technical grade.
Can Molekula supply potassium stearate in bulk?
Yes, Molekula can supply potassium stearate in bulk quantities upon request.
What documentation comes with a purchase of potassium stearate?
Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS).
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.