26741-53-7 Phosphite Antioxidant 626 Antioxidant 24 Ultranox 626

26741-53-7 Antioxidant 24 Ultranox 626 Phosphite Antioxidant 626

Basic Spec

English name: Antioxidant 24
English alias: Bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphite; 3,9-Bis(2,4-bis(1,1-dimethylethyl)phenoxy)-2,4,8,10-tetraoxa-3 , 9-diphosphaspiro (5.5) undecane; ADK Stab PEP 24; Mark PEP 24; Ultranox 626; Irgafos 126; Primanox626; 3,9-bis(2,4-di-tert-butylphenoxy)-2,4,8,10 -tetraoxa-3,9-diphosphaspiro[5.5]undecane; Antioxidant 626; Bis-(2,4-di-tert-butylphenyl)-pentaerythrityl diphosphite; Antioxidant AT-626; Bis(2,4-di-tert-butylphenyl) Pentaerythritol diphosphite
CAS No.: 26741-53-7
EINECS number: 247-952-5
Molecular formula: C33H50O6P2
Molecular weight: 604.694
InChI: InChI=1/C33H50O6P2/c1-29(2,3)23-13-15-27(25(17-23)31(7,8)9)38-40-34-19-33(20- 35-40) 21-36-41 (37-22-33) 39-28-16-14-24 (30 (4, 5) 6) 18-26 (28) 32 (10, 11) 12 / h13- 18H, 19-22H2, 1-12H3
Molecular structure: antioxidant THP-24 26741-53-7
Melting point: 160-178°C
Boiling point: 555.8 °C at 760 mmHg
Flash point: 363.9 ° C

Chemical Structure:

Physical Property & Specification

Specifications:

Features:

Bulk density 0.43g/mL; dust explosion concentration lower limit 0.12Kg/m3, explosive index 0.37; flash point 168°C; ignition point 421°C; soluble in organic solvents such as toluene, dichloromethane, slightly soluble in alcohol, insoluble in water .
Features:
Compared with common phosphite antioxidants, this product has higher phosphorus content (antioxidant functional group) and higher antioxidant activity. It is a high-performance phosphite antioxidant. The addition of SONOX 626 allows the polymer to be effectively protected under high temperature processing conditions and allows the polymer to achieve excellent multiple processing stability.

Packaging:

Packed in a carton lined with plastic bags, 20KG/carton; not suitable for exposure, heat and moisture during storage and transportation. Store in a cool, dry and ventilated place, and store and transport according to the general chemical products.

Applications

This product is a high-performance antioxidant. The antioxidant activity of this product is better than other phosphites. It can make the polymer better processed under the condition of adding half of the common phosphite antioxidant. stability.

This product is generally not used alone, and is often used in combination with a phenolic primary antioxidant such as antioxidant 1010. This product is widely used in PP, PE, PS, PA, PC, ABS and other polymer materials after compounding with phenolic antioxidants. The general dosage is from 0.1% to 0.3%.

Payment Terms

100% TT Before Shipment

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