| Identification | More | [Name]
N,N-Diphenyl-p-phenylenediamine | [CAS]
74-31-7 | [Synonyms]
1，4-Bis(phenyl amino)benzene
1,4-DIANILINOBENZENE
AGERITE DPPD
Antioxidant PPD
DIPHENYL-P-PHENYLENEDIAMINE
N,N'-DIPHENYL-1,4-PHENYLENEDIAMINE
P-PHENYLAMINODIPHENYLAMINE
SYM-DIPHENYL-P-PHENYLENEDIAMINE
4,4’-diphenyl-p-phenylenediamine
4,4'-Diphenyl-p-phenylenediamine
4-Phenylaminodiphenylamine
Altofane DIP
altofanedip
Antage DP
antagedp
antigenep
AntioxidantH
DFFD
Diafen
Diafen FF | [EINECS(EC#)]
200-806-4 | [Molecular Formula]
C18H16N2 | [MDL Number]
MFCD00003015 | [Molecular Weight]
260.33 | [MOL File]
74-31-7.mol |
| Chemical Properties | Back Directory | [Appearance]
grey 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
| [solubility ]
DMSO (Slightly), Methanol (Slightly) | [form ]
Solid | [pka]
1.85±0.20(Predicted) | [color ]
Pale Grey to Very Dark Grey | [Stability:]
Stable. Incompatible with strong acids, strong oxidizing agents | [Water Solubility ]
<0.1 g/100 mL at 20 ºC | [Merck ]
14,3329 | [BRN ]
2215944 | [Contact allergens]
A rubber accelerant, formerly contained in “blackrubber mix.” The most frequent occupational categories are in the metal industry, homemakers, health services and laboratories, and the building industry. | [LogP]
4.536 (est) | [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]
74-31-7(EPA Substance) |
| Hazard Information | Back Directory | [Chemical Properties]
grey powder | [Definition]
ChEBI: An N-substituted diamine that is 1,4-phenylenediamine in which one hydrogen from each amino group is replaced by a phenyl group. | [Uses]
Polymerization inhibitor. Antioxidant for rubber, petroleum oils, feedstuffs. | [General Description]
Gray or dark gray powder or flakes. | [Reactivity Profile]
N,N'-DIPHENYL-P-PHENYLENEDIAMINE(74-31-7) may react with oxidizing materials . Neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen may be generated in combination with strong reducing agents, such as hydrides. | [Air & Water Reactions]
Insoluble in water. | [Fire Hazard]
This chemical is combustible. This chemical may form explosive dust-air mixtures. | [Description]
N,N'-Diphenyl-4-phenylenediamine (DPPD) is a rubber
accelerant, formerly contained in the "black rubber
mix". The most frequent occupational categories are in
metal industry, homemakers, health services and
laboratories, and building industries. | [Purification Methods]
Crystallise the diamine from EtOH, chlorobenzene/pet ether or *benzene. It has also been crystallised from aniline, then extracted three times with absolute EtOH. [Beilstein 13 H 80.] |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R43:May cause sensitization by skin contact.
R52/53:Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment . | [Safety Statements ]
S24:Avoid contact with skin .
S37:Wear suitable gloves .
S61:Avoid release to the environment. Refer to special instructions safety data sheet . | [WGK Germany ]
1
| [RTECS ]
ST2275000
| [TSCA ]
Yes | [HS Code ]
29215900 | [Hazardous Substances Data]
74-31-7(Hazardous Substances Data) | [Toxicity]
LD50 orally in Rabbit: 2370 mg/kg LD50 dermal Rat 4500 mg/kg |
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