Akrochem Weston™ 398T Antioxidant

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Akrochem Weston™ 398T Antioxidant
Categories:	Other Engineering Material
Material Notes:	Product Description: Weston™ 398T phosphate is a versatile phosphate stabilizer which is useful in a large number of polymers such as HDPE, LLDPE, SBR, ABS, PVC and others. Features: Low color and low nonylphenol content Improves color and processing stability during recovery, drying, compounding, processing and end use Synergism is realized when this product is combined with other stabilizers such as hindered phenols. May be added alone or in combination with the monomers and/or in antioxidant emulsions during recovery and/or during compounding Application: Weston™ 398T phosphite is a versatile liquid phosphite stabilizer which improves color and processing stability as well as end use of a variety of polymers such as HDPE, LLDPE, SBR, ABS, PVC and others. CAS No: 26523-78-4 Information provided by Akrochem Corporation
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Physical Properties	Original Value	Comments

Specific Gravity	0.980 - 0.992 g/cc
Viscosity	250 cP @Temperature 60.0 °C
Molecular Weight	688 g/mol
Vapor Pressure	<= 6.00 torr @Temperature 245 °C

Chemical Properties	Original Value	Comments
Acid Value	<= 0.25	[mg KOH/g]

Thermal Properties	Original Value	Comments
Specific Heat Capacity	1.67 J/g-°C
Thermal Conductivity	0.000300 cal cm/sec-cm²-°C
Flash Point	385 °F	Pensky-Martens Closed Cup

Optical Properties	Original Value	Comments
Refractive Index	1.525 - 1.528

Component Elements Properties	Original Value	Comments
Phosphorus, P	4.1 - 4.5 %

Descriptive Properties
Appearance	Clear liquid
Color	<75	Pt - Co
Content	<0.5%	Free Nonylphenol
	<25 ppm	Chlorine
	<50 ppm	Free Phenol

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PAKZCH514 / 315432

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