976-56-7
Diethyl 3,5-di-tert-butyl-4-hydroxybenzyl phosphate
CAS: 976-56-7
Molecular Formula: C19H33O5P
976-56-7 - Names and Identifiers
976-56-7 - Physico-chemical Properties
| Molecular Formula | C19H33O5P |
| Molar Mass | 356.44 |
| Density | 1.046±0.06 g/cm3(Predicted) |
| Melting Point | 122 °C |
| Boling Point | 417.0±33.0 °C(Predicted) |
| Storage Condition | Room Temprature |
| MDL | MFCD00227871 |
| Physical and Chemical Properties | White or yellowish crystalline powder. Melting point 159-161 °c. The number of grams dissolved in 0.6 of the following solvents at 20 ° C. Is: acetone 27, methanol 62, benzene 33, chloroform 50, n-hexane 0.01, ethyl acetate 20, water. |
| Use | The product is a phosphorus-containing hindered phenol antioxidant and has good extraction resistance. Especially suitable for polyester anti-aging. It is generally added prior to polycondensation as it is a catalyst for polycondensation of the polyester. Can also be used for polyamide as a light stabilizer, and has anti-Oxygen effect. There is a synergistic effect in combination with an ultraviolet absorber. The general dosage of 0.3-1.0. The product is also useful as a stabilizer for dimethyl terephthalate in storage and transport. The toxicity of the product is low. Mice oral LD50>5000mg/kg. |
976-56-7 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
976-56-7 - Synthesis of antioxidant bis (3, 5-di-tert-butyl-4-hydroxybenzylphosphonic acid monoethyl ester) calcium salt
from VIP Journal Professional Edition
Author:
Native , LV , Qian Jianhua
Abstract:
The antioxidant calcium salt was synthesized from domestic 2, 6-di-tert-butylphenol with paraformaldehyde, triethyl phosphite, hydrated sodium hydroxide and calcium chloride in four steps. The structure of each step product is dominated by NMR, IR and elemental analysis.Key words:
DOI:
CNKI:SUN:JXSY.0.1996-03-005
cited:
year:
1996
Last Update：2024-01-02 23:10:35
976-56-7 - Synthesis of diethyl (3, 5-di-tert-butyl-4-hydroxy)-benzylphosphonate
from
VIP web Author:
Who Yao Ruo
Abstract:
In this paper, 2, 6-di-tert-butylphenol is reacted with formaldehyde and dimethylamine to form N, n-dimethyl-3, 5-, di-tert-butyl-4-hydroxybenzylamine by Mannich reaction, the product is then reacted with a diethyl phosphonate to give the title compound. Its IR and ~ 1HNMR are consistent with the structure. The product is a hindered antioxidant, suitable for polyester fiber, polypropylene fiber and polyvinyl chloride fiber.
Key words:
Antioxidant diethyl phosphate synthesis Antioxidant
year:
1990
Last Update：2023-08-16 22:05:47
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View History
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