2,2',6,6'-tetra-tert-butyl-4,4'-methylenediphenol
Synonym: 4,4ʹ-methylenebis (2,6-di-tertiary-butylphenol) Phenol, 4,4-methylenebis(2,6-bis(1,1-dimethylethyl)-
PowerNox™ 4426 has extreme low volatile. It is used for synthetic resin antioxidants due to its resisting thermal oxidation good stability.
Synonyms | Albemarle - Ethanox 4702/4710 |
CAS Number | 118-82-1 |
EINECS Number | 204-279-1 |
Chemical Structure | |
Chemical Formula | C29H44O2 |
Molecular Weight | 425 |
Packing | PowerNox™ 4426 is supplied in net weight 20kg plastic bag. |
Note | All information in the leaflet is based on our present knowledge and experience. We reserve the right to make any changes according to technological progress or further developments. Performance of the product described herein should be verified by testing. We specifically disclaim any other express or implied warranty of fitness for a particular purpose or merchantability. We disclaim liability for any incidental or consequential damages. |
PowerNox™ 4426 is premier multi-ring phenolic acid antioxidant for engine oil and industrial lubricants. It is a highly effective additive for suppressing the formation of acidic and insoluble products of oil oxidation.
PowerNox™ 4426 also has advantages as below:
- High hindered phenolic antioxidant activity
- Low volatility ensures optimum lubricant performance at high temperatures
- Inhibits deposit and sludge formation in the 1000-hour TOST and the CMA thermal stability test
- Synergistic with zinc dithiophosphates and alkylated diphenylamines
- Nonreactive with copper, iron, lead, and silver
- Reduces total deposits in the TEOST MHT-4
Appearance | White Powder |
Relative Density [15°C, g/cm3] | 0.88 |
Melting Point [°C] | 154 |
Flash Point [°C] | 170 |
Vapor Pressure [20°C, Pa] | <13 |
Ash (%) | Max.0.2 |
Solubility [20°C] | % w/w |
Isooctane | 4 |
Petroleum ether | 8 |
Ethanol | 6 |
Toluene | 33 |
Water | <0.01 |
10% NaOH | <0.01 |