(1809-19-4) Dibutyl (Hydrogen) Phosphite
Product Description
A phenol free and environmentally friendly phosphite antioxidant that can be used as a flame retardant, gasoline additive, antioxidant, solvent and intermediate in organic synthesis. This product has high anti-wear additive index, good compatibility, and is an efficient extreme pressure wear-resistant agent commonly used in lubricating oil. It can be used with industrial gear oil, cutting oil and other low, medium and high grade oils.
Suggested dosage: 0.3–1.0%.
Chemical Properties
- Molecular formula: C9H19O3P
- Molecular weight: 194
- CAS No.: 1809-19-4
| Appearance | Colorless transparent liquid | Chromaticity (APHA) | ≤30 |
| Refractive index (25℃) | 1.4170–1.4230 | Density (25℃) | 0.970–0.995 |
| Acidity Value (mgKOH/g) | ≤50 | ||
Follow good industrial practice and try to avoid unnecessary human contact. The product should be stored in a dry and ventilated place at room temperature to avoid moisture absorption; keep away from fire and heat sources; keep away from strong oxidants and reducing agents. It is recommended to use within 12 months.
For more detailed information, please refer to our company's SDS.

