Chemical description | High molecular weight phenolic antioxidant | |
Appearance | Crystalline, white to slightly yellow powder | |
Applications and typical treat levels | - Mineral oil based industrial lubricants
| 0.2-0.6% |
| | - Greases for high temperature applications
| 0.5% |
| | - Metal working fluids (forming oils)
| 0.5% |
| Benefits | - Ashless solid with low volatility
| |
| | - Permits reduced antioxidant losses under high temperature operating conditions
| |
| | - Offers excellent solubility in mineral oil
| |
| | - Offers superior thermal stability over conventional phenolic antioxidants such as BHT and methylene-bis-phenols
| |
| | - Approved by FDA/USA for use in blending food grade lubricants
| |
| Note | Solubility in mineral oils is below 1% and should be checked in finished fluid | |