29901-62-0

Basic information

• Product Name: potassium sulphanilate
• Synonyms: potassium sulphanilate;4-Aminobenzenesulfonic acid potassium salt
• CAS NO: 29901-62-0
• Molecular Formula: C₆H₆NO₃S*K
• Molecular Weight: 211.28004
• EINECS: 249-942-6
• Mol File: 29901-62-0.mol
• Article Data: 8

Chemical Properties

• Boiling Point: °Cat760mmHg
• Flash Point: °C
• Appearance: /
• Density: g/cm³
• CAS DataBase Reference: potassium sulphanilate(CAS DataBase Reference)
• NIST Chemistry Reference: potassium sulphanilate(29901-62-0)
• EPA Substance Registry System: potassium sulphanilate(29901-62-0)

Safety Data

• Hazardous Substances Data: 29901-62-0(Hazardous Substances Data)

Usage

General Description

Potassium sulphanilate is a chemical compound derived from the reaction between sulphanilic acid and potassium hydroxide. It is commonly used as a dye intermediate for the production of azo dyes. potassium sulphanilate is also used in the manufacturing of pharmaceuticals, agrochemicals, and rubber chemicals. Potassium sulphanilate has a high solubility in water and is relatively stable under normal conditions. It is important to handle this chemical with care, as it can cause irritation to the skin, eyes, and respiratory system. Overall, potassium sulphanilate is a versatile compound with various industrial applications.

InChI:InChI=1/C6H7NO3S.K/c7-5-1-3-6(4-2-5)11(8,9)10;/h1-4H,7H2,(H,8,9,10);/q;+1/p-1

Synthetic route

4-aminobenzene sulfonic acid (121-57-3) → potassium 4-aminobenzenesulfonate (29901-62-0)

Conditions	Yield
With potassium chloride; water; potassium hydroxide for 4h; Heating;	91%

potassium 4-aminobenzenesulfonate (29901-62-0) + 1,4-dinitro-1H-imidazole (19182-81-1) → Potassium; 4-(4-nitro-imidazol-1-yl)-benzenesulfonate (143248-10-6)

Conditions	Yield
With potassium hydroxide In water at 20 - 25℃; for 0.666667h; pH 8.7 - 9.0;	97%

4-methyleneoxetan-2-one (674-82-8) + potassium 4-aminobenzenesulfonate (29901-62-0) → p-acetoacetylaminobenzenesulfonic acid potassium salt (70321-85-6)

Conditions	Yield
In water at 55 - 75℃; for 0.0166667 - 0.0833333h;	95%

potassium 4-aminobenzenesulfonate (29901-62-0) + potassium hydroxide → 4-hydroxy-benzene-sulfonic acid-(1)

Conditions	Yield
at 350℃; im Stickstoff-Strom;

Upstream product

• 121-57-3 4-aminobenzene sulfonic acid 

Downstream Products

• 70321-85-6 p-acetoacetylaminobenzenesulfonic acid potassium salt 
• 143248-10-6 Potassium; 4-(4-nitro-imidazol-1-yl)-benzenesulfonate 

Relevant articles and documents

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This study focuses on preparing a new family of organometallic surfactants based on five ion complexes, namely Co2+, Ni2+, Cu2+, Fe3+, and Mn2+. The first step is the preparation of 5-chloromethyl salicylaldehyde (Salen, S). The second step is the formation of sodium alkoxide of Pluronic F-127 (AP). The third step is the formation of the modified AP-Salen (new ligand). This ligand was reacted with the metal chlorides as mentioned earlier to obtain the organometallic surfactants (OMS) named AP-Salen-M complexes. FT-IR, 1H-NMR, SEM, and EDX justified the chemical structure of the as-prepared materials. The surface tension of these surfactants was measured for surfactant solutions at different concentrations to determine the CMC and calculate their surface-active properties. The interfacial tension at CMC was measured against heavy crude oil to predict the availability and use these surfactants in the enhanced oil recovery (EOR) process. From the results, this class of surfactants exhibited good surface-active properties and high efficiency on the interface adsorption; besides, they reduced the interfacial tension in the order between 10-1 and 10-2 mN m-1, which gives a good indication to use these surfactants in EOR application for the heavy crude oil.

Transition metal complexes as dye forming catalysts in hair coloring compositions

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