PEG400MO, full name polyethylene glycol 400 monooleate, is the product of an esterification reaction between polyethylene glycol (PEG) with an average molecular weight of about 400 and one molecule of oleic acid (C18 unsaturated fatty acid). As a high-quality nonionic surfactant provided by Guoli Chemical, its core functional component is polyethylene glycol (400) monooleate (PEG-8 Monooleate).
This product has extremely high purity. According to the product database, its total active content is ≥99%, of which the monoester content ≥90% plays the main emulsifying and dispersing role, while it also contains a small amount (<10%) of diester by-products. The molecular formula of the product is C₁₇H₃₃COO(CH₂CH₂O)nH, where n is approximately 8-9, and the average molecular weight is about 600, which constitutes its unique hydrophilic-lipophilic balance (HLB value about 11.5) characteristics.
The product appears as a light yellow to amber transparent oily liquid, free of free phosphoric acid, with a very low acid value (≤5 mgKOH/g) and an iodine value in the range of 70-90 gI₂/100g. It is a pure formula, stable performance industrial and daily chemical raw material.
The following are core indicators directly related to the "main components", sourced from the Guoli Chemical product database:
| Parameter Item | Specification or Value |
|---|---|
| Chemical Name | Polyethylene glycol (400) monooleate |
| CAS Number | 9004-96-0 |
| General Molecular Formula | C₁₇H₃₃COO(CH₂CH₂O)nH, n≈8~9 |
| Active Content | ≥99% |
| Monoester Content | ≥90% |
| Average Molecular Weight | Approx. 600 |
| Diester Content | <10% |
| Free Alcohol Content | ≤1% |
| Iodine Value | 70~90 gI₂/100g |
| Acid Value | ≤5 mgKOH/g |
| Saponification Value | 80~100 mgKOH/g |
As a high-purity monoester nonionic surfactant, PEG400MO, relying on the excellent emulsifying and dispersing capabilities of its main component, is widely used in the following scenarios: