25704-18-1 Usage
Description
Sodium polystyrene sulfonate (PSS ,Poly(styrene sulfonic acid) sodium salt) is an organic compound, light amber liquid, odorless, and easily soluble in water. Sodium polystyrene sulfonate solution is a water-soluble polymer with a unique effect, used in reactive emulsifiers, water-soluble polymers (coagulants, dispersants, container cleaning agents, cosmetics, etc.), water treatment agents (dispersion Chemicals, flocculants), sulfur exchange resins (membrane), photographic agents (membrane), semiconductors, imaging films, heat conduction products, etc.
Application
Poly(styrene sulfonic acid) sodium salt is used as Polyelectrolyte. It is also used as electroconductive and antistatic resin for electrographic and electrophotographic substrates.
Uses
Different sources of media describe the Uses of 25704-18-1 differently. You can refer to the following data:
1. Poly(styrene sulfonic acid?(PSS) is used to prepare adsorption ultrafiltration membranes and is used to treat heavy metal water pollution. Sodium polystyrene sulfonate (PSS) has strong hydrophilic properties. When gelling in water, it will migrate to the surface of the particles and then be mainly fixed on the surface of the particles or the surface of the pore channels. The adsorption ultrafiltration membrane prepared based on it not only can remove water Macromolecules, colloids and other substances, and can simultaneously remove various toxic and harmful cations in the water.
2. Scale inhibitor and dispersant for metal salts and oxides.Anionic polyelectrolyte.
3. Dispersant for calcium carbonate and metal oxides, suspending aid for particulates and scale control agent for water treatment.
4. Effective antistatic and specialty dispersant.
5. Dispersant for metal oxides and sulfates, suspending agent for particulates, protective colloid for oil-in-water emulsions and viscosity modifier in aqueous-based adhesives.
6. sodium polystyrene sulfonate is a film former. It holds the actives on site and gives the feeling of skin tightening. It is synthetically manufactured.
Chemical Properties
white to tan powder
Definition
ChEBI: A polymer composed of repeating sodium 4-ethylbenzenesulfonate units.
General Description
Poly (sodium 4-styrenesulfonate) (PSS) a cation exchange polyelectrolyte. PSS may be used to produce mechanically stable and very reproducible coatings.
Safety Profile
Mildly toxic by ingestion. Experimental reproductive effects. When heated to decomposition it emits toxic fumes of SOx and Na2O. See also SULFONATES.
Purification Methods
Purify the polymer by repeated precipitation of the sodium salt from an aqueous solution by MeOH, with subsequent conversion to the free acid by passage through an Amberlite IR-120 ion-exchange resin. [Kotin & Nagasawa J Am Chem Soc 83 1026 1961.] Recrystallise it from EtOH. Alternatively purify it by passage through cation and anion exchange resins in series (Rexyn 101 cation exchange resin and Rexyn 203 anion exchange resin), then titrated it with NaOH to pH 7. The sodium form of polystyrenesulfonic acid is precipitated by addition of 2-propanol. Dry it in a vacuum oven at 80o for 24hours, and finally increasing to 120o before to use. [Kowblansky & Ander J Phys Chem 80 297 1976.]
Check Digit Verification of cas no
The CAS Registry Mumber 25704-18-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,7,0 and 4 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 25704-18:
(7*2)+(6*5)+(5*7)+(4*0)+(3*4)+(2*1)+(1*8)=101
101 % 10 = 1
So 25704-18-1 is a valid CAS Registry Number.
InChI:InChI=1/C8H8O3S.Na/c1-2-7-3-5-8(6-4-7)12(9,10)11;/h2-6H,1H2,(H,9,10,11);/q;+1/p-1/rC8H7NaO3S/c1-2-7-3-5-8(6-4-7)13(10,11)12-9/h2-6H,1H2
