PowerNox™ 697, 2,2'-Oxamido bis[ethyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl) -propionate], CAS No.70331-94-1



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Primary Antioxidant -Metal deactivators

PowerNox™ MD697

2,2'-Oxamido bis[ethyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl) -propionate].

Chemical Structure

Introduction / Features

PowerNox™ MD697 is a highly effective metal deactivator originated from the family of sterically hindered phenolic antioxidants. Due to its low volatility and nondiscoloring properties, PowerNox™ 697 is ideal for the polymer systems of polyoleffins, polyesters, polyamides, and polyurethane.

Physical Properties

Chemical Name:	2,2'-Oxamido bis[ethyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl) -propionate]
CAS No.:	70331-94-1
EINECS No.:	274-572-7
Formula:	C`40`H`60`N`2`O`8`
Molecular Weight:	697
Melting Point(°C):	170-180
Volatile Loss(%):	Max.0.3
Color of Solution 425nm (%):	Min.97
Color of Solution 500nm (%):	Min.98
Appearance:	White to Off-White Powder
Flash Point:	260℃
Specific Gravity (20°C):	1.08
Ash(%):	Max.0.1
Min. Purity:	98%

Solubility (20°C)	% w/w
Acetone:	10
Chloroform:	35
Styrene:	5
n-hexane:	0.03
Methanol:	1.6
Water:	＜0.01

Applications

PowerNox™ MD697 has low volatility and therefore provides long-term heat aging and high temperature processing stability.

The main application for PowerNox™ MD697 is in the long term heat stabilization of polyolefins that are in contact with metal ions. Such applications include wire and cable conductors and molded parts having metal inserts.

Packings

PowerNox™ MD697 is supplied in 20kg Fiber Drum.

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