Ethoxylated Castor Oil
CAS 61791-12-6
Pharmaceutical Solubiliser · Perfume Solubiliser · Injection Formulations
- Identity (C and D)
- Conforms to EP test
- Alkalinity (ml HCl 0,1M)
- max 0,5
- Acid value (mg KOH/g)
- max 2,0
- Iodine value (g I2/100g)
- 25 – 35
Technical Specifications
| Parameter | Value | Method / unit |
|---|---|---|
| Appearance | Clear yellow viscous liquid or semi-solid | Visual |
| Identity (C and D) | Conforms to EP test | EP Monograph |
| Solution appearance (S) | Conforms to EP test | EP Monograph |
| Alkalinity (ml HCl 0,1M) | max 0,5 | EP Monograph |
| Acid value (mg KOH/g) | max 2,0 | ISO 660 · mg KOH/g |
| Iodine value (g I2/100g) | 25 – 35 | ISO 3961 |
| Hydroxyl value (mg KOH/g) | 65 – 82 | ISO 4629 · mg KOH/g |
| Saponification value (mg KOH/g) | 60 – 75 | ISO 3657 · mg KOH/g |
| Residual ethylene oxide (ppm) | max 1 | EP Monograph · ppm |
| Residual dioxane (ppm) | max 10 | EP Monograph · ppm |
| Water content (%) | max 3,0 | ISO 760 · % |
| Total ash (%) | max 0,3 | ISO 6884 · % |
Detailed application areas
Emulsifier for vegetable oils and fatty esters · Solubilisation of perfumes and active substances · Solubiliser in pharmaceutical and cosmetic formulations · Injection formulations and topical preparations · Food-approved emulsifier (feed grade) · Personal care and hair care formulations · Industrial emulsification and dispersion applications
Use Cases
- Pharmaceutical Solubiliser
- Perfume Solubiliser
- Injection Formulations
- Food-Grade Emulsifier
- Personal Care Products
- Industrial Emulsification
Packaging & storage
Packaging
200 kg drum, 1000 kg IBC container or bulk. Alternative packaging options are available on request.
Storage
Please keep in original sealed packaging in a cool, dry environment, away from direct sunlight. Recommended storage temperature: 15-25 degrees C. Storage conditions in line with the European Pharmacopoeia monograph apply.
Documents
Technical data sheet (TDS)
Review the recorded specifications, packaging and storage information.
View technical data sheet ↗Safety & lot documents
Request the current SDS and the certificate of analysis (CoA) for the lot you are evaluating.
Regulatory and compliance
KORKİMYA supply assurance
Stock in Türkiye
Current availability is confirmed by product and lot with your quote.
KKDİK registered
Every catalog product is KKDİK registered for Türkiye.
CoA for every lot
Verify technical values against the lot's certificate of analysis.
TL invoicing
Turkish lira invoicing is available for domestic purchases.
Payment terms
Discuss terms for your quantity and supply plan when requesting a quote.
Request Sample
Product Information
Ethoxylated Castor Oil (CAS 61791-12-6) is an industrial product in the surfactants category, used in Pharmaceutical Solubiliser, Perfume Solubiliser. Typical specifications: Appearance: Clear yellow viscous liquid or semi-solid; Identity (C and D): Conforms to EP test; Solution appearance (S): Conforms to EP test. KORKİMYA supplies Ethoxylated Castor Oil in 200 kg drum, 1000 kg IBC container or bulk. Alternative packaging options are available on request..
Emulsifier for vegetable oils and fatty esters · Solubilisation of perfumes and active substances · Solubiliser in pharmaceutical and cosmetic formulations · Injection formulations and topical preparations · Food-approved emulsifier (feed grade) · Personal care and hair care formulations · Industrial emulsification and dispersion applications
- CAS
- 61791-12-6
- Category
- SURFACTANTS
Synonyms
Test Methods
Visual · EP Monograph · ISO 660 · ISO 3961 · ISO 4629 · ISO 3657 · ISO 760 · ISO 6884
Frequently asked questions
What is ethoxylated castor oil (PEG-33 castor oil) and where is it used?
Ethoxylated castor oil (CAS 61791-12-6, PEG-33 castor oil) is an emulsifier and solubiliser for vegetable oils and fatty esters. It is used to solubilise perfumes and active substances; in pharmaceutical and cosmetic formulations, injection and topical preparations; as a food-approved emulsifier; and in personal-care products.
What packaging does ethoxylated castor oil come in, and is it ex-stock?
It is supplied as a clear yellow viscous liquid or semi-solid in 200 kg drums, 1000 kg IBC containers or bulk. It ships ex-stock from our domestic warehouse, so you avoid the wait of importing from China. Storage follows conditions in line with the European Pharmacopoeia (EP) monograph.
Is ethoxylated castor oil EP-compliant, KKDİK-registered and is an SDS provided?
Yes. It is supplied in line with the EP monograph (residual ethylene oxide max. 1 ppm, residual dioxane max. 10 ppm), is KKDİK-registered, and a Safety Data Sheet (SDS) is provided with every shipment. A CoA and technical data sheet are available on request.
How do I request an ethoxylated castor oil sample and a quote?
You can request a sample and a current quote through the contact form. Pharmaceutical, cosmetic and food manufacturers receive a fast reply with specification, packaging (drum/IBC/bulk) and invoicing details.
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Last updated: 04/10/2026
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