Emulsifier A-105 (CAS No.: 9004-96-0) is a nonionic surfactant prepared by an addition reaction using nonylphenol and ethylene oxide as the main raw materials. Its chemical name is nonylphenol polyoxyethylene (10) ether, and its molecular structure contains 10 ethylene oxide (EO) addition units, which endows the product with excellent interfacial activity.
The product appears as a light yellow to yellow viscous liquid. The synergistic effect of the hydrophobic group (nonylphenyl) and the hydrophilic segment (polyoxyethylene ether) in the molecular structure gives it multiple functions such as efficient emulsification, wetting, dispersing, and cleaning. In addition, its ether bonds and terminal hydroxyl groups exhibit good chemical stability in acidic, alkaline, and hard water environments.
It should be noted that although this product has aliases such as "oleyl alcohol polyoxyethylene ether", "polyoxyethylene oleyl ether", "Oleth", etc., according to the Guoli Chemical Product Database, its actual chemical composition is nonylphenol polyoxyethylene (10) ether, which is a different type of nonionic surfactant from oleyl alcohol polyoxyethylene ether (an EO adduct starting from oleyl alcohol). Care should be taken to distinguish them during use.
| Parameter | Value |
|---|---|
| Chemical Name | Nonylphenol polyoxyethylene (10) ether |
| CAS No. | 9004-96-0 |
| Product Type | Nonionic surfactant |
| Ethylene Oxide Addition Number (EO Number) | Approximately 10 |
| Appearance | Light yellow to yellow viscous liquid |
| HLB Value | No data available (approx. 13-14, for reference) |
| Flash Point (Closed Cup) | >150°C |
| Acute Oral Toxicity (LD₅₀, Rat) | >2000 mg/kg |
Based on the compositional characteristics of nonylphenol polyoxyethylene (10) ether, Emulsifier A-105 can be widely used in the following fields: