Dover Chemical DOVERPHOS 4 Trisnonylphenyl Phosphite

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Dover Chemical DOVERPHOS 4 Trisnonylphenyl Phosphite
Categories:	Other Engineering Material; Additive/Filler for Polymer
Material Notes:	Doverphos 4 is trisnonylphenyl phosphite (TNPP). It is an aryl phosphite with a high molecular weight and low phosphorus content. It is an effective liquid phosphite heat stabilizer for a wide variety of applications, including: polyolefin, acrylics, adhesives, elastomers, nylon, polycarbonate, polyurethanes, polystyrene, PVC, coatings, ABS, and polyethylene terephthalate. Typical use levels range from 0.05 to 3.00% for most applications. Information provided by DoverChem
Key Words:	CAS# 26523-78-4
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Physical Properties	Metric	English	Comments

Specific Gravity	0.980 - 0.992 g/cc @Temperature 25.0 °C	0.980 - 0.992 g/cc @Temperature 77.0 °F	ASTM D1298
Density	0.983 g/cc	0.0355 lb/in³
Viscosity	4600 cP @Temperature 25.0 °C	4600 cP @Temperature 77.0 °F
Molecular Weight	688 g/mol	688 g/mol
ASTM Color	<= 75	<= 75	APHA; ASTM D1209

Chemical Properties	Metric	English	Comments
Total Acid Number	<= 0.10	<= 0.10	[mgKOH/gm]; ASTM D3242

Optical Properties	Metric	English	Comments
Refractive Index	<= 1.528 @Temperature 25.0 °C	<= 1.528 @Temperature 77.0 °F	ASTM D1218

Component Elements Properties	Metric	English	Comments
Phosphorus, P	4.3 %	4.3 %

Descriptive Properties
Appearance	Clear liquid
NP, %	<4		Free Nonylphenol, DP260

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