Our products
Zhiyi has been providing high-quality products and anti-yellowing solutions to polymer industries for 24 years. The products are widely used in polyurethane, rubber, plastic, lubricating oil, resin, coating, etc.
Polyurethane
Rubber
Plastic
Lubricating Oil
Coating
Resin
YIPHOS® 4025
Chemical Name:
4,4'-butylidene-bis(3-methyl-6-tert-butylphenyl) alkyl(C13)-phosphite
Molecular Formula:
C78H144O6P2
Molecular Weight:
1240
CAS :
13003-12-8
Physical Properties
Appearance
Light Yellow Clear Liquid
Phosphorus Content (%)
4.8
Color (APHA)
<100
Acid Value (mg KOH/g)
≤0.10
Refractive Index (25℃)
1.4880-1.4950
Specific Gravity (25℃)
0.940-0.960
TGA(℃,% MASS LOSS)
Weight Loss (%)
5
10
50
Temperature (℃)
260
296
371
Applications
YIPHOS® 4025 is a nonylphenol-free phosphite antioxidant, can be used in polyole-fins,rubber and PVC. YIPHOS® 4025 is a multifunctional antioxidant for organic polymers. It exhibits good antioxidant effects when used at typical level of 0.1 to 3.0 wt%, improving the color, light stability and clarity of polymers, especially com-bined with primary metal stalibilizers and epoxy stabilizers. When used in rubber, 4025 shows more excellent color improvement than TNPP.
Recommended dosage:0.05~1.0%