Molekula
Calcium stearate
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
Calcium stearate is a calcium salt of stearic acid used as a lubricant, stabilizer, and release agent in plastics, rubber, and pharmaceuticals. It is a white, waxy powder with a molecular formula of [CH3(CH2)16COO]2Ca, a molecular weight of 607.02 g/mol, and is stable at ambient storage conditions. It has no signal word.
Molekula supplies Calcium stearate in 1 kg packs, from £56.04 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 5 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.
-
1 kg — £46.70 per pack ex VAT · £56.04 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,slight odor |
| Identification | Conforms to reference |
| Loss on Drying | ≤ 3.0% |
| Free fatty acid | ≤ 1.0% |
| Particle size (325 mesh) | ≥ 99.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Crystalline powder |
| Melting Point | 179 °C |
Source: PubChem CID 15324 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 12453198 |
| CAS Number | 1592-23-0 |
| IUPAC Name | calcium bis(octadecanoate) |
| EC Number | 216-472-8 |
| Molecular Formula | [CH3(CH2)16COO]2Ca |
| Molecular Weight | 607.02 |
| Exact Mass | 606.49 |
| SMILES | CCCCCCCCCCCCCCCCCC(=O)[O-].CCCCCCCCCCCCCCCCCC(=O)[O-].[Ca+2] |
| InChIKey | CJZGTCYPCWQAJB-UHFFFAOYSA-L |
| InChI | InChI=1S/2C18H36O2.Ca/c2*1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20;/h2*2-17H2,1H3,(H,19,20);/q;;+2/p-2 |
| PubChem CID | 15324 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29157001 |
| Tariff Code | 2915705090 |
Safety & GHS
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P308+313 IF exposed or concerned: Get medical advice/attention
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.
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
- Aquacal
- Calcium bis(stearate)
- Calcium distearate
- Calcium octadecanoate
- Calstar
- Flexichem
- Flexichem CS
- Octadecanoic acid, calcium salt
- Stavinor 30
- Stearic acid, calcium salt
Frequently asked questions
What is calcium stearate commonly used for?
Calcium stearate is primarily used as a lubricant, release agent, and stabilizer in plastics, rubber, and cosmetics, as well as a thickening agent in food and pharmaceuticals.
What is the chemical formula and molecular weight of calcium stearate?
The chemical formula is [CH₃(CH₂)₁₆COO]₂Ca, and the molecular weight is 607.02 g/mol.
How should calcium stearate be stored?
Store calcium stearate at ambient temperature in a cool, dry place, away from moisture and incompatible substances.
What specification does Molekula's calcium stearate meet?
Molekula's calcium stearate is a white powder with a slight odor that conforms to reference identification, with loss on drying of 3.0% or less, free fatty acid of 1.0% or less, and at least 99.0% passing a 325 mesh particle size test.
Can Molekula supply calcium stearate in bulk quantities?
Yes, Molekula can supply calcium stearate in bulk, with quantities tailored to meet customer requirements.
What documentation comes with a calcium stearate order?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a product specification sheet.
Where can I buy Calcium stearate?
Directly from Molekula, which lists Calcium stearate in 1 kg packs from £56.04 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.