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Antioxidant 1222
Product Name: Antioxidant 1222
Chemical Name: Diethyl 3,5-di-tert-butyl-4-hydroxybenzyl phosphate
Synonyms :3,5-di-tert-butyl-4-hydroxybenzyl diethylphosphonate; TTHP; IRGANOX 1222
CAS :976-56-7
Molecular Formula: C19H33O4P
Molecular Weight: 356.44 g/mol
Characterization
Antioxidant 1222 is a phosphorus-containing hindered phenol antioxidant with good extraction resistance. Especially suitable for polyester anti-aging, usually added before polycondensation, because it is also the polyester polycondensation catalyst, used to eliminate the current more toxic catalyst antimony trioxide, as this product does not reduce the rate of reaction, it does not react with the residue of the catalyst, but can keep the polyester melt from being degraded by thermal oxidation. Synergistic effect with UV absorbers
Features & Benefits
Improving extraction resistance
Low volatility& toxicity.
Excellent color and color stability
Superior gas-fading resistance
Specifications
Appearance | White to light yellow crystalline | White to light yellow crystalline |
Purity | ≥98.0% | ≥99.9% |
Melting Range | ≥120°C | ≥120°C |
Volatiles | ≤0.5% | ≤0.2% |
Water | ≤0.1% | ≤0.1% |
Applications:
It is especially suitable for polyester aging protection. Generally, it added before the condensation polymerization because it is a catalyst for polyester condensation polymerization. It can also be used as a photostabilizer for polyamide and has antioxidant. When used with ultraviolet absorbers, it has a synergistic effect. The general usage is 0.3-1.0 parts. This product can also be as a stabilizer for the storage and transportation of dimethyl terephthalate.
Guidelines for use
The concentrations of Antioxidant 1222 to be used strongly depend on end-usen requirements.
The recommended concentration is 0.05 ~ 0.25%
Handling & Safety
In accordance with good industrial practice, handle with care and avoid unnecessary personal contact. Avoid continuous or repetitive breathing of dust. Use only with adequate ventilation. In case of insufficient ventilation wear suitable respiratory equipment. Avoid dust formation and ignition sources. For more detailed information please refer to the material safety data sheet.