Sodium p-styrenesulfonate
Synonym(s):4-Vinylbenzenesulfonic acid sodium salt hydrate
- CAS NO.：2695-37-6
- Empirical Formula: C8H7NaO3S
- Molecular Weight: 207.2
- MDL number: MFCD00013379
- EINECS: 220-266-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 04:39:59
What is Sodium p-styrenesulfonate ?
Chemical properties
white to light beige powder
The Uses of Sodium p-styrenesulfonate
Styrene-4-sulfonic acid sodium salt is grafted on poly(ethersulfone) membrane to determine the fractionation of proteins with similar molecular weights. It is used as sodium based ion exchange membranes for membrane capacitive deionization (MCDI) for synthesis. It is used in the study of copolymerization characteristics of sodium styrenesulfonate.
Flammability and Explosibility
Non flammable
Properties of Sodium p-styrenesulfonate
| Melting point: | 151-154 °C |
| Boiling point: | 111-112 °C |
| Density | 1.043 g/mL at 25 °C |
| vapor pressure | 0Pa at 25℃ |
| refractive index | n |
| Flash point: | 78 °F |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| form | Powder |
| color | White |
| Water Solubility | Soluble in water. |
| Hydrolytic Sensitivity | 0: forms stable aqueous solutions |
| BRN | 3575931 |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
| CAS DataBase Reference | 2695-37-6(CAS DataBase Reference) |
| EPA Substance Registry System | Benzenesulfonic acid, 4-ethenyl-, sodium salt (2695-37-6) |
Safety information for Sodium p-styrenesulfonate
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02  Corrosion Corrosives GHS05  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H226:Flammable liquids H315:Skin corrosion/irritation H318:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation H336:Specific target organ toxicity,single exposure; Narcotic effects |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P280:Wear protective gloves/protective clothing/eye protection/face protection. P370+P378:In case of fire: Use … for extinction. |
Computed Descriptors for Sodium p-styrenesulfonate
| InChIKey | XFTALRAZSCGSKN-UHFFFAOYSA-M |
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