Epoxidised Soya Bean Oil (ESBO) Supplier in Malaysia
- Also known as
- ESBO
- ESO
- Epoxidized Soybean Oil
- Epoxidised Soyabean Oil
Epoxidised soya bean oil is a bio-based secondary plasticiser and heat stabiliser for flexible PVC, bought in Malaysia by compounders, film and sheet producers and cable makers. It is also written epoxidized soybean oil and shortened to ESBO or ESO (CAS 8013-07-8). Epoxidising the double bonds of refined soya bean oil leaves a pale yellow viscous liquid additive, not an edible oil.
Oxirane oxygen content is the parameter buyers name first, because the epoxy groups carry both the plasticising and the acid-scavenging duty. Iodine value shows how much unsaturation survived the reaction, with colour, acid value and viscosity behind it. Standard, high-oxirane, low-colour and epoxy modifier grades are all traded, so state the oxirane minimum your formulation works to.
In flexible PVC it sits beside a primary plasticiser and the calcium-zinc or other stabiliser system, taking up hydrogen chloride released during processing. Common outlets are film and sheet, cable compounds, flooring and wall covering, plastisols, sealants and non-phthalate compound designs. Epoxy coating and adhesive formulators use the same oxirane groups as a reactive diluent and flexibiliser.
This is a chemically modified additive rather than the crude or refined oil, and it is not a phthalate or terephthalate ester. Send the grade, oxirane oxygen minimum, quantity, application and delivery location with your enquiry. Availability, pack format and documentation are confirmed with the quotation.

- CAS number
- 8013-07-8
- Appearance
- pale yellow clear viscous liquid
Epoxidised Soya Bean Oil grades and forms
We supply several forms to suit different formulating and dosing setups. If you need a size that is not listed, ask us.
| Grade | Form | Assay | Typical use | Packing |
|---|---|---|---|---|
| Standard epoxidised soya bean oil | pale yellow viscous liquid | — | The volume grade for flexible PVC compounding, working as a secondary plasticiser and acid scavenger beside a primary plasticiser and the chosen stabiliser system. | Confirm the required drum, IBC or flexitank pack format with the quotation. |
| High-oxirane epoxidised soya bean oil | pale yellow viscous liquid | — | Selected where more epoxy functionality per kilogram is wanted, so that hydrogen chloride scavenging and stabiliser support carry further at the same addition level. | Confirm the required drum, IBC or flexitank pack format with the quotation. |
| Low-colour epoxidised soya bean oil | pale, near water-white viscous liquid | — | Clear and lightly tinted film, sheet and moulded work where the additive must not shift the colour of the finished article, with tighter colour and acid value limits than a standard grade. | Confirm the required drum, IBC or flexitank pack format with the quotation. |
| Epoxy modifier grade epoxidised soya bean oil | pale yellow viscous liquid | — | Reactive diluent and flexibiliser duty in epoxy systems, coatings and adhesives, where the oxirane groups are wanted for reaction rather than for PVC stabilisation. | Confirm the required drum, IBC or flexitank pack format with the quotation. |
How to buy epoxidised soya bean oil from ChemTrade
Request a quote for epoxidised soya bean oil
Use the form below to request a quotation. You can also email sales@chemtrademalaysia.com or send us a message on WhatsApp.
Specifications
| Parameter | Value | Method |
|---|---|---|
| Appearance | pale yellow clear viscous liquid | — |
| CAS number | 8013-07-8 | — |
| Chemistry | epoxidised triglyceride from refined soya bean oil; a mixture rather than a single molecule, so no molecular formula is quoted | — |
| Oxirane (epoxy) oxygen | grade dependent and the first parameter buyers specify; state the minimum your formulation works to and it is confirmed against the grade quoted | — |
| Iodine value | grade dependent, indicating the unsaturation left after epoxidation; confirmed against the grade quoted rather than published here | — |
| Other routine checks | colour, acid value, viscosity and moisture as required by the grade and the compound it feeds | — |
| Solubility | insoluble in water; miscible with common plasticisers and soluble in most organic solvents | — |
Epoxidised Soya Bean Oil applications
Safety and handling
Store sealed in a cool, dry place out of direct sunlight and away from acids and strong oxidising agents, since the epoxy groups will react with them. Keep drums closed to limit moisture pickup, and use the safety information issued with the grade quoted.
Common questions about epoxidised soya bean oil
Is epoxidised soya bean oil the same as soya bean oil?
No. The double bonds of refined soya bean oil have been converted to epoxy groups, which turns an edible oil into a PVC additive with acid-scavenging capacity. The unmodified oil is a separate product on its own page, so order each material by name.
What does ESBO do in a flexible PVC compound?
It works on two fronts. As a secondary plasticiser it softens the compound alongside the primary plasticiser, and as a co-stabiliser it takes up hydrogen chloride released during processing and service, supporting the calcium-zinc or other stabiliser package rather than replacing it.
Which oxirane oxygen level should I specify?
Oxirane oxygen is the epoxy content available for scavenging and reaction, so a higher figure gives more stabilising capacity at the same addition rate. The level is grade dependent, and no figure is published here. State the minimum your formulation works to and it is confirmed against the grade quoted.
Why does iodine value appear on the specification?
Iodine value measures the unsaturation left after epoxidation, so it reads as the inverse of how complete the reaction was. Compounders watch it alongside oxirane oxygen, colour and acid value when they compare grades. Name the limit your process requires with the enquiry.
Can epoxidised soya bean oil replace a phthalate plasticiser?
Not on a one for one basis. It is normally used as a secondary plasticiser at a limited addition level beside a primary plasticiser such as a phthalate or terephthalate ester, and compounds built around it need formulation trials. It is not a phthalate itself, which is why non-phthalate compound designs often carry it.
Is it the same as epoxidised linseed oil or epoxidised palm oil?
No. Those are epoxidised from different feedstocks and behave differently in oxirane content, colour and viscosity, so they are separate products. Order the one your specification names rather than treating epoxidised vegetable oils as interchangeable.
What details are needed for a price enquiry?
Provide the grade or oxirane minimum, the quantity, the application, the delivery location and any preferred pack format or documentation. Mention the compound the additive feeds so the quotation covers the whole requirement.
