China CAS: 74-31-7 Diphenyl-P-Phenylenediamine Rubber Antioxidant H, Find details about China N N-Diphenyl-P-Phenylenediamine, CAS 74-31-7 from CAS: 74-31-7 Diphenyl-P-Phenylenediamine Rubber Antioxidant H
Used in natural styrene butadiene, nitrile, butadiene, butyl, polyisoprene and other rubbers and latexes, it can make it have good resistance to multiple flexures and anti-cracking properties. Improve the tensile strength, enhance the protection of harmful metals such as hot oxygen, ozone and copper wall iron wall manganese, and have no effect on vulcanization. Used together with antioxidant D can solve various aging problems of dark rubber products. In addition, it is also used as polyethylene and polypropylene.
Item | Index | ||
Refined | 1stgrade | 2ndgrade | |
Initial melting point,°C | ≥140.0 | ≥135.0 | ≥125.0 |
Ash content , %(m/m) | ≤O.40 | ≤O.40 | ≤O.40 |
Decrement by heating ,%(m/m) | ≤O.40 | ≤O.40 | ≤O.40 |
Remainder through sieving (100),% (m/m) | ≤1.0 | ≤1.0 | ≤1.0 |
Appearance | Greyish brown powder |
Melting point | 143-145 °C(lit.) |
Boiling point | 220-225 °C0.5 mm Hg(lit.) |
density | 1.2 |
refractive index | 1.6300 (estimate) |
Fp | 220-225°C/1mm |
storage temp. | 2-8°C |
pka | 1.85±0.20(Predicted) |
Water Solubility | <0.1 g/100 mL at 20 ºC |
Merck | 14,3329 |
BRN | 2215944 |
Stability: | Stable. Incompatible with strong acids, strong oxidizing agents |
CAS DataBase Reference | 74-31-7(CAS DataBase Reference) |
NIST Chemistry Reference | 1,4-Benzenediamine, N,N'-diphenyl-(74-31-7) |
EPA Substance Registry System | N,N'-Diphenyl-p-phenylenediamine (74-31-7) |