| Identification | More | [Name]
2,4-Diaminobenzenesulfonic acid | [CAS]
88-63-1 | [Synonyms]
1,3-Diaminobenzene-4-sulfonic acid
1,3-diaminobenzene-6-sulfonic acid
1,3-DIAMINOBENZENESULFONIC ACID
1,3-PHENYLENEDIAMINE-4-SULFONIC ACID
2,4-DIAMINO-1-SULFOBENZENE
2,4-DIAMINOBENZENESULFONIC ACID
2,4-DIAMINOBENZENESULPHONIC ACID
3-AMINO-4-SULFOANILINE
META PHENYLENE DIAMINE 4-SULFONIC ACID
M-PHENYLENE DIAMINE-4-SULFONIC ACID
M-PHENYLENEDIAMINESULFONIC ACID
O-AMINOSULFANILIC ACID
2,4-diamino-benzenesulfonicaci
kyselina1,3-fenylendiamin-4-sulfonova
kyselina2,4-diaminobenzensulfonova
m-Diaminobenzenesulfonicacid
m-Phenylenediamine-4-sulphonicacid
3-Phenylenediamino-4-sulfonic acid
1,3-Phenylendiamin-4-sulfonsure
4-Sulfo-1,3-diaminobenzene | [EINECS(EC#)]
201-846-5 | [Molecular Formula]
C6H8N2O3S | [MDL Number]
MFCD00035772 | [Molecular Weight]
188.2 | [MOL File]
88-63-1.mol |
| Chemical Properties | Back Directory | [Appearance]
brown crystalline powder | [Melting point ]
260-266 °C (dec.) | [Boiling point ]
500°C (estimate) | [density ]
1.366 (estimate) | [vapor pressure ]
0Pa at 25℃ | [refractive index ]
1.6490 (estimate) | [storage temp. ]
-20°C Freezer, Under inert atmosphere | [solubility ]
DMSO (Slightly, Heated), Methanol (Slightly) | [form ]
Solid | [pka]
2.99±0.10(Predicted) | [color ]
White to Pale Yellow | [Water Solubility ]
1000g/L at 25℃ | [BRN ]
2694057 | [LogP]
-4.65 | [CAS DataBase Reference]
88-63-1(CAS DataBase Reference) | [EPA Substance Registry System]
88-63-1(EPA Substance) |
| Questions And Answer | Back Directory | [Uses]
2,4-Diaminobenzenesulfonic acid (cas# 88-63-1) is a useful reagent for improving the chlorine resistance and water permeability of polyamide (PA) membrane in water treatment. |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/38:Irritating to eyes and skin .
R43:May cause sensitization by skin contact.
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 .
S36/39:Wear suitable protective clothing and eye/face protection .
S37/39:Wear suitable gloves and eye/face protection .
S36:Wear suitable protective clothing . | [RIDADR ]
1759 | [WGK Germany ]
2
| [RTECS ]
DB5900000
| [HazardClass ]
8 | [PackingGroup ]
III | [HS Code ]
29309090 |
| Raw materials And Preparation Products | Back Directory | [Raw materials]
Sodium bisulfite-->2,4-Dinitrochlorobenzene-->2-AMINO-4-METHYLAMINOBENZENE SULFONIC ACID | [Preparation Products]
REACTIVE BLUE 4-->Reactive Dark Blue M-2ge-->disodium 4-[[2,4-diamino-5-[(3-sulphonatophenyl)azo]phenyl]azo]-2-[[2,6-dihydroxy-3-[(4-nitrophenyl)azo]phenyl]azo]benzenesulphonate-->Reactive Blue 222-->REACTIVE BLUE 5-->Mordant Brown 33-->Mordant Brown 49-->Acid Yellow 127-->CIBACRON BRILLIANT YELLOW 3G-P-->Reactive Yellow 179-->Reactive Light Yellow M-5G-->Reactive Yellow 18-->PROCION YELLOW H-E3G-->Reactive Brilliant Blue M-BR-->disodium 2,5-dichloro-4-[4-[[5-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-2-sulphonatophenyl]azo]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]benzenesulphonate-->Neutral Brilliant Yellow S-5GL-->Reactive Navy Blue Ker-->[2,6'-Bibenzothiazole]-7-sulfonic acid, 2'-[4-[[2,6-diamino-3-sulfo-5-[(3-sulfophenyl)azo]phenyl]azo]phenyl]-6-methyl-, trisodium salt-->trisodium 2,4-bis[[2,4-diamino-5-[(3-sulphonatophenyl)azo]phenyl]azo]benzenesulphonate |
| Hazard Information | Back Directory | [Chemical Properties]
brown crystalline powder | [Production Methods]
2,4-Diaminobenzenesulfonic acid is obtained by sulfonating a solution of m-phenylenediamine in 100% sulfuric acid with oleum at 155 ℃, adding water to the sulfonation mixture, desulfonating the resulting disulfonic acids at 140 ℃, and isolating the free acid at 10 ℃; yield 93%. Another process starts from 1-chloro-2,4-dinitrobenzene, which, as an alcoholic solution, is reacted with sodium sulfite solution to form 2,4-dinitrobenzenesulfonic acid, from which the end product is obtained by reduction with iron according to BE′CHAMP. | [General Description]
2,4-Diaminobenzenesulfonic acid is an sulfonated aromatic amine and its aerobic biodegradation was reported. |
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