Potassium polyvinyl sulfate

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Structural formula
Structural formula section of potassium polyvinyl sulfate
General
Surname Potassium polyvinyl sulfate
other names

KPVS

CAS number 26182-60-5
Monomer Potassium vinyl sulfate
Molecular formula of the repeating unit C 2 H 3 KO 4 S
Molar mass of the repeating unit 162.21 g mol −1
PubChem 24856444
Brief description

colorless to yellow-brown powder

properties
Physical state

firmly

safety instructions
GHS labeling of hazardous substances
07 - Warning

Caution

H and P phrases H: 315-319-335
P: 261-305 + 351 + 338
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Potassium polyvinyl sulfate (KPVS) is a polymer and a derivative of polyvinyl sulfuric acid .

use

KPVS is in areas such as polyelectrolyte - titration used to determine polycations. The negative centers of the KPVS attach to the positive centers of the analyte. As soon as the KPVS has been added in excess, the indicator (o- toluidine blue ) turns from blue to red and the equivalence point of the titration has been reached. KPVS can also be used in the potentiodynamic electropolymerization of pyrrole .

Individual evidence

  1. entry to POLYVINYLSULFURIC ACID POTASSIUM SALT at ChemicalBook , accessed on 19 September 2011th
  2. a b Data sheet Poly (vinyl sulfate) potassium salt from Sigma-Aldrich , accessed on May 3, 2011 ( PDF ).
  3. M. Idouhar, A. Tazerouti: Spectrophotometric Determination of Cationic Surfactants Using Patent Blue V: Application to the Wastewater Industry in Algiers. In: Journal of Surfactants and Detergents. 11, 2008, p. 263, doi : 10.1007 / s11743-008-1079-1 .
  4. Stereoselective Syntheses