Sodium 4-toluenesulfonate
Structural formula | ||||||||||
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General | ||||||||||
Surname | Sodium 4-toluenesulfonate | |||||||||
other names |
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Molecular formula | C 7 H 7 NaO 3 S | |||||||||
Brief description |
beige solid |
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properties | ||||||||||
Molar mass | 194.19 g mol −1 | |||||||||
Physical state |
firmly |
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Melting point |
> 300 ° C |
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solubility |
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safety instructions | ||||||||||
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Sodium toluene-4-sulfonate is a chemical compound of sodium from the group of sulfonates . It is the sodium salt of p -toluenesulfonic acid .
Extraction and presentation
Sodium toluene-4-sulfonate can be obtained by sulfonating toluene with sulfuric acid and sodium chloride , whereby the isomeric sodium toluene-2-sulfonate is formed in addition to sodium toluene-4-sulfonate .
properties
Sodium toluene-4-sulfonate is a flammable, difficult to ignite, beige solid that is soluble in water. A melting point of around 500 ° C is assumed, but the compound decomposes before this temperature is reached.
use
Sodium toluene-4-sulfonate is used as a carrier electrolyte for the deposition of polypyrrole membranes . It is also used as a solvent to study the properties of resin particles and in the textile industry.
Related links
- Sodium toluene-2-sulfonate , CAS number: 15046-75-0
- Sodium toluene-3-sulfonate , CAS number: 38251-37-5
Individual evidence
- ↑ a b c d e f Entry on sodium toluene-4-sulfonate in the GESTIS substance database of the IFA , accessed on January 8, 2018(JavaScript required) .
- ↑ WLF Armarego, Christina Li Lin Chai: Purification of Laboratory Chemicals . Butterworth-Heinemann, 2013, ISBN 0-12-382161-4 , pp. 979 ( limited preview in Google Book Search).
- ↑ Peter Kurzweil, Paul Scheipers: Chemistry basics, structural knowledge, applications and experiments . Springer-Verlag, 2010, ISBN 978-3-8348-0341-2 , pp. 226 ( limited preview in Google Book search).
- ↑ oecd.org: SIDS INITIAL ASSESSMENT PROFILE , accessed on July 16, 2016.
- ↑ Data sheet Sodium p-toluenesulfonate, 95% from Sigma-Aldrich , accessed on July 15, 2016 ( PDF ).
- ^ Hermann Rath: Textbook of textile chemistry including textile chemical technology . Springer-Verlag, 2013, ISBN 978-3-642-80649-0 , pp. 784 ( limited preview in Google Book search).