Identification | More | [Name]
2,5-DICHLORO-4-NITROANILINE | [CAS]
6627-34-5 | [Synonyms]
2,5-DICHLORO-4-NITROANILINE TIMTEC-BB SBB003478 2,5-dichloro-4-nitro-anilin 2,5-dichloro-4-nitro-benzenamin Benzenamine,2,5-dichloro-4-nitro- 2,5-Dichloro-4-nitrobenzenamine 2,5-DICHLO-4-NITROANILINE | [EINECS(EC#)]
229-591-5 | [Molecular Formula]
C6H4Cl2N2O2 | [MDL Number]
MFCD00025157 | [Molecular Weight]
207.01 | [MOL File]
6627-34-5.mol |
Chemical Properties | Back Directory | [Appearance]
yellow powder | [Melting point ]
154-158 °C (lit.) | [Boiling point ]
360.98°C (rough estimate) | [density ]
1.6257 (rough estimate) | [refractive index ]
1.6100 (estimate) | [storage temp. ]
Keep in dark place,Inert atmosphere,Room temperature | [form ]
powder to crystal | [pka]
pK1:-1.74(+1) (25°C) | [color ]
Light yellow to Amber to Dark green | [BRN ]
2211952 | [CAS DataBase Reference]
6627-34-5(CAS DataBase Reference) | [EPA Substance Registry System]
6627-34-5(EPA Substance) |
Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . S36:Wear suitable protective clothing . S37/39:Wear suitable gloves and eye/face protection . | [RIDADR ]
2811 | [WGK Germany ]
3
| [RTECS ]
BX2950000 | [HS Code ]
29214200 |
Hazard Information | Back Directory | [Chemical Properties]
yellow powder | [Uses]
2,5-Dichloro-4-nitroaniline may be employed as an indicator for the estimation of acidity of strong acids. | [General Description]
2,5-Dichloro-4-nitroaniline is primary aniline indicator. Its pKa in sulfonate and water are -2.12 and -1.78, respectively. | [Purification Methods]
Recrystallise it from EtOH, then sublime it in vacuo.[Beilstein 12 H 735, 12 II 400.] |
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