RIANOX® 628FF

Identification & Functionality

Chemical Family

Phosphites

Chemical Name

3,9-bis(2,4-di-tert-butylphenoxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane,

Magnesium Aluminum Hydroxy Carbonate

Plastics & Elastomers Functions

Antioxidant,

Secondary Antioxidant

Technologies

Plastics

Product Families

Plastics — Polymer Additives

Antioxidants & Stabilizers

Molecular Formula

C₃₃H₅₀O₆P₂

Chemical Structure

Features & Benefits

Materials Features

Free Flowing,

Good Processability,

Heat Aging Resistant,

High Molecular Weight,

High Performance,

Prevents Thermo-Oxidative Degradation

Applications & Uses

Compatible Polymers & Resins

Polyolefins

Use Level

0.1 - 0.4%

Applications

• RIANOX® 628FF is phosphite antioxidant which is excellent to use in polyolefins, engineering plastic etc.
• The use of RIANOX® 628FF can effectively improve the processing stability, slow down the oxidative degradation, and protect the color of the material.
• RIANOX® 628FF is usually used in combination with primary antioxidants, providing better protection against heat and oxygen aging through their synergistic combinations.
• Use levels for RIANOX® 628FF range between 0.1% and 0.4%, the specific dosage should be determined in trials covering a concentration range.

Properties

Physical Form

Granules,

Solid

Appearance

White to off - white granule

Typical Properties

	Value	Units	Test Method / Conditions
Molecular Weight	604	—	—

Regulatory & Compliance

Certifications & Compliance

ISO 14001,

OHSAS

Safety & Health

Handling & Safety

The use of proper protective equipment is recommended. Excess exposure to the product should be avoided. Wash thoroughly after handling.

Storage & Handling

Shelf Life

6 Months

Storage Conditions

Store the product in a cool, dry, well-ventilated area away from incompatible materials, keep tightly closed. With proper storage, shelf life of this product is 6 months from the manufacture date.