AO04
product description
| Chemical name | Dibutyl phosphite | ||
| CAS number | 1809-19-4 | ||
| Molecular structure | ![]() |
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| Product form | Colorless to light yellow transparent liquid | ||
| Specifications | TEST | SPECIFICATION | |
| Phosphorus content (%) | 14.5-16.0 | ||
| Purity (%) | ≥94.0 | ||
| Acid value (mg KOH/g) | ≤15.0 | ||
| Specific gravity (25℃) | 0.980-1.010 | ||
| Application | YIHOO AO04 is an eco-friendly phenol-free phosphite, specifically engineered as an extreme pressure anti-wear (EP-AW) agent for lubricating oils. This product delivers outstanding EP-AW performance and excellent compatibility with base oils and other additives. It is ideal for formulating a broad spectrum of lubricants, including industrial gear oils, automotive gear oils, cutting oils, and other metalworking fluids. The recommended dosage ranges from 0.3% to 1%. Additionally, it can be compounded with other single-functional additives to produce multifunctional lubricant additive packages. | ||
| Pakcage | / | ||


