Castor Oil Ethoxylate Manufacturers: Buyer's Guide

Castor Oil Ethoxylate Manufacturers: Buyer's Guide

Castor Oil Ethoxylate is a non-ionic surfactant produced by ethoxylating natural castor oil with ethylene oxide. Available in a range of EO (ethylene oxide) mole grades, it functions as an emulsifier, solubilizer, wetting agent, dispersant, and stabilizer across agrochemicals, textiles, pharmaceuticals, personal care, oil and gas, industrial cleaning, and specialty chemical formulations. For procurement managers, formulators, and purchasing teams evaluating sources, this guide provides a structured framework for understanding the product, selecting the right grade, and qualifying a reliable manufacturer in India.

India is one of the primary global sources of Castor Oil Ethoxylate due to its position as the world's largest castor oil producer, giving Indian manufacturers a natural feedstock advantage for competitive and consistent supply. To request bulk pricing, EO grade specifications, COA, MSDS, and TDS for Castor Oil Ethoxylate, contact Chemical Bull, a trusted Castor Oil Ethoxylate Manufacturer with drug licence compliance, ISO certification, and nationwide and global export supply capability.

What Is Castor Oil Ethoxylate?

Castor Oil Ethoxylate is produced by reacting castor oil with ethylene oxide under controlled temperature and catalyst conditions. The ethoxylation process attaches polyethylene oxide (PEO) chains to the hydroxyl groups of castor oil's ricinoleic acid triglycerides, creating an amphiphilic molecule with both oil-compatible and water-compatible regions.

The number in the grade designation indicates the moles of ethylene oxide reacted per mole of castor oil. Higher EO grades are more water-soluble and have higher HLB values. Lower EO grades are more oil-compatible with lower HLB values.

EO Grade Selection: Which Grade Do You Need?

The most critical decision in sourcing Castor Oil Ethoxylate is selecting the correct EO grade for the application. Grade selection determines HLB value, water solubility, emulsification type (O/W or W/O), cloud point, and suitability for the specific formulation.

Important: Always confirm the exact HLB value, active content, and viscosity of the specific grade supplied by your manufacturer before committing to formulation use. HLB values can vary slightly between manufacturers due to differences in castor oil feedstock and ethoxylation process conditions.

Applications by Industry

Agrochemicals

Castor Oil Ethoxylate is widely used in agrochemical formulations as:

• Emulsifier in EC (emulsifiable concentrate) formulations: Lower EO grades (COE-5 to COE-15) emulsify oil-soluble active ingredients into stable aqueous dispersions when diluted in the spray tank
• Adjuvant in spray formulations: Improves wetting and spreading of spray solutions on waxy leaf surfaces, increasing contact time and active ingredient uptake
• Dispersant in WP and SC formulations: Supports uniform dispersion of solid active ingredient particles in wettable powder and suspension concentrate systems
• Sticker: Helps spray droplets adhere to plant surfaces after application, reducing wash-off in light rain

Pharmaceutical Formulations

In pharmaceutical applications, higher EO grades (COE-35, COE-40) are used as:

• Solubilizers for poorly water-soluble APIs: Forms micellar solutions with oil-soluble drugs in aqueous pharmaceutical preparations (similar to the function of Cremophor EL in IV formulations)
• Emulsifiers in topical formulations: Stabilises oil-water emulsions in pharmaceutical creams, ointments, and lotions
• Tablet coating plasticizer: At controlled concentrations as a processing aid in film coating formulations

For pharmaceutical use, always confirm the specific grade and purity compliance with the applicable pharmacopoeia or regulatory standard for the intended route of administration.

Textile Processing

In textile manufacturing:

• Wetting and scouring agent: Reduces surface tension of processing baths, improving penetration of aqueous chemicals into fibre bundles during scouring, bleaching, and dyeing
• Emulsifier for textile lubricants: Emulsifies mineral oil and synthetic lubricant systems used in fibre and yarn processing
• Leveling agent: Promotes uniform dye distribution across fabric width in dyeing baths
• Softener emulsifier: Emulsifies silicone and fatty acid softeners in textile finishing baths

Oil and Gas Industry

In oil and gas processing:

• Demulsifier component: Helps break water-in-oil emulsions in crude oil processing systems
• Foam control agent: Controls unwanted foam in gas processing and refinery operations
• Enhanced oil recovery (EOR) additive: Reduces interfacial tension between oil and water phases in EOR injection fluid systems
• Pipeline cleaning formulations: Emulsifier and wetting agent in pipeline cleaning concentrates

Industrial Cleaning and Personal Care

In industrial cleaning, Castor Oil Ethoxylate functions as an emulsifier for oil and grease removal and as a co-surfactant in complex cleaning concentrate systems.

In personal care, higher EO grades are used as solubilizers for fragrance oils and essential oils in toners, mists, and clear cosmetic formulations, and as emulsifiers in skin care creams and lotions.

Quality Parameters to Verify When Sourcing

When evaluating Castor Oil Ethoxylate manufacturers, the following quality parameters should be confirmed in the Certificate of Analysis (COA) for each batch:

Documentation Checklist for Buyers

When sourcing Castor Oil Ethoxylate from a manufacturer in India, request the following documentation:

Standard documentation (all buyers):

• Certificate of Analysis (COA): batch-specific, confirming all key quality parameters
• Material Safety Data Sheet (MSDS / SDS): current version for safe handling and storage
• Technical Data Sheet (TDS): full product specification and application guidance

For pharmaceutical buyers:

• Drug licence of the supplier for pharmaceutical ingredient supply in India
• GMP or ISO certification of the manufacturing or supply operation
• Grade compliance letter confirming pharmacopoeia or regulatory grade standard met

For agrochemical buyers:

• Purity and composition data relevant to pesticide formulation registration requirements
• Biodegradability data if required for the registration dossier
• Compatibility data with common agrochemical active ingredients (if available)

For export buyers:

• Certificate of Origin
• Export-ready packaging documentation
• HSN code and customs classification confirmation

How to Evaluate a Castor Oil Ethoxylate Manufacturer in India?

Buyers evaluating manufacturers should assess the following criteria:

Product Range and Grade Availability

A capable manufacturer should offer multiple EO mole grades to meet the needs of different formulation applications. Confirm which specific grades are manufactured or stocked, and whether custom EO grades can be produced for specialized requirements.

Batch Consistency

Inter-batch consistency in HLB value, active content, and colour is critical for stable formulation performance. Request COA records from multiple recent batches to evaluate batch-to-batch variation before approving a supplier.

Technical Support Capability

A reliable manufacturer should be able to provide grade selection guidance for specific applications, assist with documentation for regulatory submissions, and respond promptly to technical and commercial enquiries.

Supply Reliability

Confirm:

• Minimum order quantity (MOQ) and whether it suits your procurement volume
• Lead time from order to delivery for standard and urgent requirements
• Inventory availability for repeat orders and planned production schedules
• Packaging options: 25 kg, 200 kg drums, FIBC bags, or custom packaging

Export Capability

For international buyers, confirm:

• Export experience to your target country
• Availability of export documentation (COO, export invoice, packing list, MSDS in target language if required)
• Compliance with import regulations in your country for this product category

Questions to Ask a Manufacturer Before Ordering

Before placing a bulk order with a Castor Oil Ethoxylate manufacturer, ask:

1. Which specific EO mole grades do you manufacture or supply?
2. Can you provide a batch-specific COA for the most recent production batch?
3. What is your minimum order quantity and lead time for my required grade?
4. Do you offer samples for formulation evaluation before bulk ordering?
5. What is your batch-to-batch consistency record for HLB and active content?
6. Do you have a drug licence (for pharma buyers) or ISO certification?
7. Can you provide export documentation for international shipment?
8. What packaging sizes are available, and what are the storage requirements?
9. Is biodegradability data available for agrochemical registration requirements?
10. What is the pricing structure for repeat bulk orders?

What Chemical Bull Offers as a Castor Oil Ethoxylate Manufacturer?

ChemicalBull supplies Castor Oil Ethoxylate across multiple EO grades for pharmaceutical, personal care, agrochemical, textile, oil and gas, industrial cleaning, and specialty chemical applications with:

• Multiple EO grade availability for pharma, agrochemical, textile, and industrial formulations
• Batch-specific COA confirming HLB, active content, colour, acid value, and moisture
• MSDS and TDS for every batch
• Drug licence compliance for pharmaceutical buyers in India
• ISO certification supporting quality management requirements
• Bulk packaging in 25 kg, 200 kg drums, and FIBC options
• Nationwide delivery across all Indian states
• Export documentation and supply for international buyers
• Competitive bulk pricing with fast response to price and availability enquiries
• Sample availability for grade evaluation before bulk commitment

Frequently Asked Questions

1. What is Castor Oil Ethoxylate used for?

It is used as an emulsifier, solubilizer, wetting agent, and dispersant in agrochemicals, pharmaceuticals, personal care, textiles, oil and gas, and industrial cleaning formulations.

2. What EO grade of Castor Oil Ethoxylate should I use for agrochemical EC formulations?

Lower EO grades (COE-5 to COE-15) with lower HLB values are typically used for emulsifiable concentrate agrochemical formulations. Confirm the required HLB for your specific oil phase and active ingredient.

3. What is the CAS number for Castor Oil Ethoxylate?

CAS 61791-12-6. Molecular weight varies by EO grade, typically around 1800 g/mol for standard commercial grades.

4. What documentation is needed when sourcing from a manufacturer in India?

Standard documentation includes COA, MSDS, and TDS. Pharmaceutical buyers additionally require a drug licence and GMP or ISO certification. Export buyers require COO and export documentation.

5. Is Castor Oil Ethoxylate biodegradable?

Yes. Castor Oil Ethoxylate is readily biodegradable under aerobic conditions due to its natural castor oil-derived structure, making it suitable for environmentally preferable formulations.

6. What packaging sizes are available for bulk Castor Oil Ethoxylate?

Typical packaging includes 25 kg jerry cans, 200 kg drums, and FIBC (jumbo) bags for large volume orders. Confirm available options and MOQ with your supplier.

7. How do I request a sample before placing a bulk order?

Contact your manufacturer directly with the required EO grade, application details, and quantity needed for evaluation. Most established manufacturers can provide a sample for formulation testing.

Conclusion

Sourcing Castor Oil Ethoxylate effectively requires understanding the EO grade system, matching HLB to your formulation requirement, verifying quality parameters in the COA, and evaluating the manufacturer against supply reliability, documentation, and technical support criteria. India's position as the world's leading castor oil producer makes it the natural source market for this surfactant, with multiple manufacturers offering competitive pricing and export-ready supply for domestic and international buyers.

For bulk Castor Oil Ethoxylate across EO grades with COA, MSDS, TDS, drug licence compliance, and ISO certification, connect with Chemical Bull, a trusted Castor Oil Ethoxylate Manufacturer supplying pharmaceutical, agrochemical, textile, personal care, and industrial buyers across India and global export markets.