Chemical Name: Antioxidant 4500
Synonyms: Butylidenebis[2-tert-butyl-5-methyl-p-phenylene]-P,P,P’,P’-tetratridecylbis(phosphine)
CAS No.: 13003-12-8
Molecular Fomula: C78H144O6P2
Molecular weight: 1239.92
Appearance: White to light beige crystalline solid
Assay: ≥99.0%
Antioxidant 4500 Quick Details
Chemical Name: Antioxidant 4500
Synonyms: 4,4′-Butylidenebis(6-tert-butyl-3-methylphenyl ditridecyl phosphite)
CAS No.: 13003-12-8
Molecular Fomula: C78H144O6P2
Chemical Structure:
Molecular weight: 1239.92
Appearance: White to light beige crystalline solid
Assay: ≥99.0%
Typical Properties
| ITEMS | SPECIFICATION |
| Density | 1.6077 |
| Boiling point | 158 °C14 mm Hg(lit.) |
| Melt point | 42-44 °C(lit.) |
| Flash Point | 229 °F |
| Appearance | Colorless to light yellow transparent liquid | Chromaticity (APHA) | ≤50 |
| Refractive index (25℃) | 1.4820-1.4950 | Density (25℃) | 0.910-0.950 |
| Acidity Value (mgKOH/g) | ≤0.10 | Phosphorus Content(%) | 5.30-5.70 |
| Viscosity (cps@25 ℃) | 1300-1700 | ||
| Thermal weight loss（ % ） | 300℃ 6% ；320℃ 10% | ||
Application:
A polymeric phosphite antioxidant with high molecular weight and high phosphorus content, which has good performance in improving the hydrolysis resistance, heat resistance, stability, and color improvement of thermoplastics, rubber, and PVC products. As a secondary antioxidant, it has a strong ability to decompose hydroperoxides. It has a good synergistic effect with the main antioxidant, which can improve the antioxidant effect and reduce product costs.
Suggested addition amount: 0.1-2.0%.
Packaging
200 KG/DRUM.
Storage
It should be stored in a clean, dry and cool place, preventing from sunlight, rain.
![Butylidenebis[2-tert-butyl-5-methyl-p-phenylene]-P,P,P',P'-tetratridecylbis(phosphine) CAS 13003-12-8](https://haihangchem.com/wp-content/uploads/2024/09/Butylidenebis2-tert-butyl-5-methyl-p-phenylene-PPPP-tetratridecylbisphosphine-CAS-13003-12-8.jpg "Butylidenebis[2-tert-butyl-5-methyl-p-phenylene]-P,P,P',P'-tetratridecylbis(phosphine) CAS 13003-12-8")
![Butylidenebis[2-tert-butyl-5-methyl-p-phenylene]-P,P,P',P'-tetratridecylbis(phosphine) CAS 13003-12-8](https://haihangchem.com/wp-content/uploads/2024/09/Butylidenebis2-tert-butyl-5-methyl-p-phenylene-PPPP-tetratridecylbisphosphine-CAS-13003-12-8-1.jpg "Butylidenebis[2-tert-butyl-5-methyl-p-phenylene]-P,P,P',P'-tetratridecylbis(phosphine) CAS 13003-12-8")