4-Amino-benzenesulfonic acid monosodium salt

4-Amino-benzenesulfonic acid monosodium salt Basic information

Preparation method Production process flow chart Uses

Product Name:	4-Amino-benzenesulfonic acid monosodium salt
Synonyms:	4-SULFOANILINE SODIUM SALT;4-AMINOBENZENESULFONIC ACID SODIUM SALT;SULPHANILIC ACID SODIUM SALT;SULFANILIC ACID SODIUM SALT;SODIUM SULFANILATE;SODIUM ANILINESULFONATE;P-ANILINESULFONIC ACID SODIUM SALT;4-amino-benzenesulfonicacimonosodiumsalt
CAS:	515-74-2
MF:	C6H8NNaO3S
MW:	197.18
EINECS:	208-208-5
Product Categories:	Intermediates of Dyes and Pigments
Mol File:	515-74-2.mol

4-Amino-benzenesulfonic acid monosodium salt Chemical Properties

storage temp.	Inert atmosphere,Room Temperature
CAS DataBase Reference	515-74-2(CAS DataBase Reference)
EPA Substance Registry System	Sulfanilic acid monosodium salt (515-74-2)

Safety Information

MSDS Information

Provider	Language
4-Amino-benzenesulfonic acid monosodium salt	English

4-Amino-benzenesulfonic acid monosodium salt Usage And Synthesis

Preparation method	4-Amino-benzenesulfonic acid monosodium salt is obtained by transposition and neutralization of aniline sulfonated.
Production process flow chart	Put 98% sulphuric acid in the oil bath sulfonated cauldron and add 99% aniline to it after stirring the sulphuric acid for 1 hour. Raise the temperature of the cauldron to 160℃. Launch the vacuum system and make the vacuum degree0.053MPa in the cauldron.Then the temperature of the cauldron is raised to 200℃. The heat preservation lasts for half an hour before the temperature is raised to 260℃ and the completion of heat preservation to transposition. At this time cool and close the vacuum system, keep 10 minutes and discharge the vacuum in the cauldron, gradually cooling to 80℃ . Add water and stir it before putting in the storage tank. In the storage tank, the material is heated to 70-80 degrees centigrade. Add the sodium carbonate and neutralize it to pH=7.0 - 7.5 before moving into the neutralization cauldron with the batch mother liquid. The relative density of water is adjusted to 1.12 before being heated to boiling. Then the activated carbon will be added and stirring is made for half an hour followed by the thermal filtration. The filter cake is washed with water, and the filtrate is steamed to a relative density of 1.18. Afterwards, it is put into the crystallizer and cooled to 30 ℃ in 8 hours followed by the centrifuge filtration. The filtrate can be used as the next batch of mother liquid and the filter cake is p-aminophenylsulfonic acid.
Uses	4-Amino-benzenesulfonic acid monosodium salt can be used as a fungicide. It is mainly used to control the rust of wheat and the rust of other crops.It can also be used for the prevention and control of wheat rust, dilute the original fungicide with 250 times of liquid to spray the occurrence of the disease points and range.
Flammability and Explosibility	Nonflammable
Purification Methods	It crystallises from water. [Beilstein 14 IV 2655.]

4-Amino-benzenesulfonic acid monosodium salt Preparation Products And Raw materials

Raw materials	Sulfuric acid-->Sodium carbonate-->Aniline-->Sulfanilic acid-->Sulfamic acid monosodium salt-->Methyl Orange-->N,N-Diethyl-1,4-phenylenediamine
Preparation Products	Tartrazine-->whitener WG for wool-->4-Hydrazinobenzenesulfonic acid-->Fluorescent Brightener BC-->resist H-->Acid Orange 7-->ACID YELLOW 17-->REACTIVE GREEN 19-->Reactive Dark Blue M-2ge-->Mordant Yellow 10-->New red-->P-DIAZOBENZENESULFONIC ACID-->C.I. Solvent Brown 39-->Direct Brown 78-->Solvent Orange 39-->sodium p-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]benzenesulphonate

ACID ORANGE 63 Direct Blue 53 Congo Red ACID RED 66 CHICAGO SKY BLUE 6B CHLORANTINE FAST RED 5B Acid Red 27 Mordant Black 17 Mordant Red 7 ACID YELLOW 54 Eriochrome Black T 6-(5-Chloro-2-hydroxy-4-sulfophenylazo)-5-hydroxy-1-naphthalenesulfonic acid disodium salt Mordant Black 3 Ponceau S SPADNS C.I. 14720 HYDROXY NAPHTHOL BLUE ACID YELLOW 76 (C.I. 18850)

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4-Amino-benzenesulfonic acid monosodium salt

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