PowerNox™ 4426 CAS No. 118-82-1

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.

Technical Data of PowerNox™ 4426 CAS 118821

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.

Benefits & Applications of PowerNox™ 4426 CAS No. 118 82 1

PowerNox™ 4426 is premier multi-ring phenolic 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

Physical Properties of PowerNox™ 4426 CAS No. 118-82-1

Appearance	White Powder
Relative Density [15°C, g/cm3]
Melting Point [°C]	154
Flash Point [°C]	170
Vapor Pressure [20°C, Pa]	<13
Ash (%)

Solubility of PowerNox™ 4426 CAS No. 118-82-1

Solubility [20°C]	% w/w
Isooctane	4
Petroleum ether	8
Ethanol	6
Toluene	33
Water	<0.01
10% NaOH	<0.01

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