Characterization Reactions Applications Features/benefits Guidelines for use Physical Properties Safety
ChemicalBook > CAS DataBase List > Antioxidant 168

Antioxidant 168

Characterization Reactions Applications Features/benefits Guidelines for use Physical Properties Safety
Product Name
Antioxidant 168
CAS No.
31570-04-4
Chemical Name
Antioxidant 168
Synonyms
IRGAFOS 168;Tris(2,4-ditert-butylphenyl)phosphate;TRIS(2,4-DI-TERT-BUTYLPHENYL) PHOSPHITE;AO 168;Irgafos 168 Ciba;ANTIOXIDANT168;4-di-tert-butylphenyl)phosphite;Tns-(2.4-di-tert-butyl)-phosphite;TRIS(2,4-DI-T-BUTYLPHENYL)PHOSPHITE;AT 168
CBNumber
CB5311800
Molecular Formula
C42H63O3P
Formula Weight
646.94
MOL File
31570-04-4.mol
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Antioxidant 168 Property

Melting point:
181-184 °C(lit.)
Boiling point:
594.2±50.0 °C(Predicted)
Density 
-0.98
Flash point:
46°C (115°F)
storage temp. 
2-8°C
solubility 
Acetonitrile (Slightly), Chloroform (Sparingly), Ethyl Acetate (Sparingly, Heate
form 
Powder
Specific Gravity
0.98
color 
white
Hydrolytic Sensitivity
4: no reaction with water under neutral conditions
Sensitive 
moisture sensitive
Stability:
Moisture Sensitive
InChIKey
JKIJEFPNVSHHEI-UHFFFAOYSA-N
LogP
18 at 25℃
CAS DataBase Reference
31570-04-4(CAS DataBase Reference)
EPA Substance Registry System
Tris(2,4-di-tert-butylphenyl) phosphite (31570-04-4)
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Safety

WGK Germany 
-
TSCA 
Yes
HS Code 
2920900002
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
PHR3091
Product name
Plastic Additive 5
Purity
pharmaceutical secondary standard, certified reference material
Packaging
400MG
Price
$114
Updated
2024/03/01
Sigma-Aldrich
Product number
441791
Product name
Tris(2,4-di-tert-butylphenyl) phosphite
Purity
98%
Packaging
100g
Price
$47.5
Updated
2024/03/01
Sigma-Aldrich
Product number
1544964
Product name
Plastic additive 5
Purity
United States Pharmacopeia (USP) Reference Standard
Packaging
200mg
Price
$436
Updated
2024/03/01
TCI Chemical
Product number
P1421
Product name
Tris(2,4-di-tert-butylphenyl) Phosphite
Purity
>98.0%(GC)
Packaging
25g
Price
$22
Updated
2024/03/01
TCI Chemical
Product number
P1421
Product name
Tris(2,4-di-tert-butylphenyl) Phosphite
Purity
>98.0%(GC)
Packaging
100g
Price
$41
Updated
2024/03/01
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Antioxidant 168 Chemical Properties,Usage,Production

Characterization

Antioxidant 168  is a hydrolytically stable phosphite processing stabilizer. As a secondary antioxidant,Antioxidant 168 reacts during processing with hydroperoxides formed by autoxidation of polymers preventing process induced degradation and extending the performance of primary antioxidants.

Reactions

  1. Precursor to a palladacyclic catalyst for Suzuki, Stille and Heck processes.
  2. Ligand for Pd-catalyzed [3+2] intramolecular cycloaddition of alk-5-enylidenecyclopropanes.
  3. Ligand for Pt-catalyzed intramolecular silaboration of alkenes.
  4. Ligand for Ni-catalyzed aminocarbonylation of aryl halides.
  5. Ligand for the Au-catalyzed [4+2] intramolecular cycloaddition of allene-dienes.
  6. Rhodium-Catalyzed Allylic Substitution with an Acyl Anion Equivalent. 

Applications

The application range of Antioxidant 168 -synergistically combined with other Ciba anti-oxidants - comprises polyolefins and olefin-copolymers such as polyethylene (e.g. HDPE, LLDPE), polypropylene, polybutene and ethylene-vinylacetate copolymers as well as polycarbonates and polyamides. The blends can also be used in polyesters, styrene homo- and copolymers, adhesives and natural and synthetic tackifier resins, elastomers such as BR, SEBS, SBS, and other organic substrates. Antioxidant 168  blends can be used in combination with light stabilizers of the TINUVIN and CHIMASSORB range.

Features/benefits

Antioxidant 168  is an organophosphite of low volatility and is particularly resistant to hydrolysis. It
protects polymers which are prone to oxidation, during the processing steps (compounding/
pelletizing, fabrication and recycling) from molecular weight change (e.g. chain scission/crosslinking)
and prevents discoloration.
Antioxidant 168 performs best when combined with other Ciba antioxidants. Blends of Antioxidant 168
with antioxidants of the IRGANOX range (IRGANOX B-blends) and with Hydroxylamine FS042 are
particularly effective. The IRGANOX range antioxidants additionally provide storage stability and give
the polymer long term protection against thermo-oxidative degradation.
Antioxidant 168 comprised in phenol free systems with other appropriate Ciba stabilizers addresses
specific stabilization requirements.

Guidelines for use

Typically 500 - 2000 ppm of Antioxidant 168 combined with appropriate levels of other additives are used for the processing stabilization of polymers. The optimum level is application specific. Extensive performance data of Antioxidant 168 combinations in various organic polymers and applications are available upon request.

Physical Properties

Safety

In accordance with good industrial practice, handle with care and prevent contamination of the
environment. Avoid dust formation and ignition sources.
For more detailed information please refer to the material safety data sheet.

Description

ANTIOXIDANT 168 is a secondary antioxidant with excellent resistance to extraction by water, low volatility and high heat stability. It can effectively decompose hydroperoxides produced during the processing of polymeric materials. ANTIOXIDANT 168 usually not used alone, is compounded with hindered phenolic primary antioxidants such as 1010 to improve thermostability of polymer during the processing. There are over ten kinds of blends of 168 with phenolic antioxidants, widely use in the polymer materials such as PE, PP, PA, PC, ABS and so on.

Uses

Tris(2,4-tert-butylphenyl) Phosphite is an intermediate in the synthesis of Tris(2,4-di-tert-butylphenyl)phosphate (T884500), a processing stabilizer for polymers.

Uses

This product is an excellent Antioxidant wnameely applied to polyethylene, polypropylene, polyoxymethylene, ABS resin, PS resin, PVC, engineering plastics, binding agent, rubber, petroleum etc. for product polymerization.

Application

Antioxidant 168 is a kind of phosphite ester antioxidant as processing stabilizer, used for polypropylene, polyethylene, and adhesives. The amount to be used may be 0.1%~1.0% depending on the substrate, processing conditions, and requirements of the end application. Blends with hindered phenols are particularly effective.In addition, they use combination with light stabilizers when need.

Definition

ChEBI: Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) is an alkylbenzene.

General Description

Tris(2,4-di-tert-butylphenyl) phosphite is a triaryl based phosphite that can be used in catalysis and metallation. Its characteristic to undergo metallation reaction and provide a cost effective synthetic processes allows it to be useful in biaryl coupling reactions.

Flammability and Explosibility

Not classified

Safety

Antioxidant 168 is approved for indirect food contact applications.

Properties and Applications

TEST ITEMS

SPECIFICATION

APPEARANCE

WHITE INCOMPACT POWDER

CONTENT

99.0% min

MELTING RANGE

183-187 °C

VOLATILE

0.3% max

SOLUBILITY 2g/20ml TOLUENE

CLEAR

FREE 2,4-DITERT-BUTYPHENOL

0.2% max (wt)

TRANSMITTANCE

98% min 425nm

98% min 500nm

ACID VALUE,mg KOH/g

0.3% max

HYDROLYSIS TIME (90°C WATER ）

14 h min

SOLUBILITY

1% ACETONE

30% TOLUENE

36% CHLOROFORM

4% ETHYL ACETATE

11% n-HEXANE

0.1% ETHANOL

36% DICHLOROETHANE

6% max PHENYLETHYLENE

0.01% max WATER

Antioxidant 168 Preparation Products And Raw materials

Raw materials

Xylene Ethanol Phenol 2,4-Di-tert-butylphenol Phosphorus trichloride

Preparation Products

Complex antioxidant
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Antioxidant 168 Suppliers

Americas 1 Belgium 2 CHINA 372 Europe 2 France 1 Germany 7 India 13 Japan 6 Singapore 1 South Korea 4 Switzerland 1 The Netherlands 3 Turkey 2 United Kingdom 2 United States 31 USA 1 Global 449
Newport Industries Ltd.
Tel
--
Fax
--
Email
sales@newport-industries.com
Country
United Kingdom
ProdList
47
Advantage
58
Eurolabs Limited
Tel
--
Fax
--
Country
United Kingdom
ProdList
6309
Advantage
46
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View Lastest Price from Antioxidant 168 manufacturers

Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
antioxidant 168 31570-04-4
Price
US $10.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20ton
Release date
2024-05-22
WUHAN FORTUNA CHEMICAL CO., LTD
Product
Antioxidant 168 31570-04-4
Price
US $0.00/Kg/Drum
Min. Order
1KG
Purity
99%min
Supply Ability
1000kg
Release date
2021-08-25
Hebei Weibang Biotechnology Co., Ltd
Product
Antioxidant 168 31570-04-4
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2024-11-01

31570-04-4, Antioxidant 168Related Search:

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