Alias:Antiozonant DTPD
CAS No:68953-84-4
(Product leader Miss Wang: +86-18917558846 E-mail: 392264406@qq.com)
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1. Chemical description:
Chemical name: Mixed Diaryl-p-phenylenediamines
Chemical formula: RC6H4NHC6H4NHC6H4R,R = H or CH3
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CAS number: 68953-84-4
WE number: 273-227-8
2. Typical properties:
Appearance and form at 20 °C: steel-brown granules
Molecular weight: ~274 g / mol
Solubility in water at 20 °C: Insoluble
Organic solvents: Soluble in acetone, toluene and xylene
Melting point: 87 - 105 °C
Decomposition point: > 200 °C
Density at 20 °C: 1,00 ÷ 1,20 g / cm3
3.Specification values:
| No. |
Property |
Unit |
Specification |
| Min |
Max |
| 1 |
Melting point |
°C |
88 |
105 |
| 2 |
Drying loss at 60 °C |
wt. % |
- |
0,5 |
| 3 |
Iron content |
ppm |
- |
750 |
| 4 |
Active components |
wt. % |
85,0 |
- |
| 5 |
Diphenyl-p-Phenylenediamine |
wt. % |
19,0 |
30,0 |
| 6 |
Ditolyl-p-Phenylenediamine |
wt. % |
15,0 |
26,0 |
| 7 |
Phenyltolyl-p-Phenylenediamine |
wt. % |
40,0 |
46,0 |
USAGE
1. used in tyres and general rubber goods such as hoses, conveyor belts, o-rings, seals, gaskets and wiper blades to confer long term protection.
2. is a persistent antiozonant, powerful antioxidant and antiflex cracking agent for many natural and synthetic elastomer compounds. It is a particularly powerful antiozonant for polychloroprene.
3. when compared with other p-phenylenediamines, has the lowest effect on the scorch and cure rate of compounds based on natural rubber, SBR, polubutadiene and polychloroprene.
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