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Epoxidized soybean oil (ESO)

Scientific name: Epoxidized soybean oil
Molecular formula: C57H106O10
Molecular weight: About 1000

Properties: At normal temperature, the product is pale yellow viscous oily liquid. It will be solidified when the temperature is lower than 5°C.ignition point: 310°C, viscosity 325mPa.s (25°C), refractive index 1.472 (25°C), water solubility<0.01% (25°C), solubility of water in this product: 0.55% (25°C). It is soluble in hydrocarbon, ketone, esters, higher alcohols and slightly soluble in ethanol. It's the most widely-used epoxide plasticizer and stabilizing agent of polyvinyl chloride. It has good compatibility with PVC resin. It has low volatility and little mobility. And it has great thermostability and light stability. It's water-proof and oil-proof. We can use it to make the products have good mechanical strength, resistance to elements and electrical property. What's more, it's nonpoisonous and can be used as the assistant of food package materials which has been authenticated internationally. If 3-5 shares of the product is used in the common soft products, it can improve the soft products’ thermostability and light stability greatly. Used with The polyester plasticizers, the product can reduce the mobility of the polyester plasticizers. Used with metal heat stabilizer, the product can have obvious synergistic effect. And using this product can reduce dosage of other plasticizer, stabilizer and lubricant. 


Index Name Grade One Qualified product
Appearance transparent light yellow oily liquid without visible impurities
Luster, (Pt-Co) ≤ 180 380
Epoxide number, % ≥ 6.0 5.5
Iodine number, % ≤ 6.0 8.0
Acidity, mgKOH/g ≤ 0.50 0.60
Flash point, °C ≥ 280 270
Density, (20°C)/(g/cm3) 0.988-0.998 0.988-0.998
Loss on heating, % ≤ 0.30 0.50

Use: The product can be used in most products of polyvinyl chloride, such as all kinds of food package materials, medical products, different kinds of films, sheet materials, tubing, sealing strip of refrigerator, artificial leather, plastic wallpaper, electrical wires and cables and other commodity plastic products .It also can be used as special printing ink and liquid composite stabilizer.

Packaging: NW: 200kg. Packed in metal pail or on the clients' requirements.

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