Sodium 2-naphthalenesulfonate
Synonym(s):2-Naphthalenesulfonic acid sodium salt
- CAS NO.：532-02-5
- Empirical Formula: C10H7NaO3S
- Molecular Weight: 230.22
- MDL number: MFCD00064186
- EINECS: 208-523-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:24:02
What is Sodium 2-naphthalenesulfonate?
Chemical properties
white to pale grey powder
The Uses of Sodium 2-naphthalenesulfonate
Sodium 2-naphthalenesulfonate may be used as an analytical reagent for iodine speciation analysis in urine using ion-pair reversed phase liquid chromatography coupled to inductively coupled plasma mass spectrometry (RP-LC-ICP-MS).
General Description
Sodium 2-naphthalenesulfonate induces various aggregates such as spherical and elongated micelles, tubular and rodlike aggregates, as well as vesicles, when added in to the aqueous solution of a gemini surfactant C12C2C12(Me) (1,2-ethanediyl-bis-(dodecyldimethylammonium bromide)). It has been studied as a solute to evaluate the performance of resin particles.
Purification Methods
It crystallises from hot 10% aqueous NaOH or water and is dried in a steam oven. [Beilstein 11 IV 521.]
Properties of Sodium 2-naphthalenesulfonate
| Melting point: | 172-173 °C |
| Boiling point: | 391.58℃ |
| Density | 0.4g/cm3 |
| vapor pressure | 0Pa at 25℃ |
| storage temp. | Inert atmosphere,Room Temperature |
| Water Solubility | Soluble in water |
| form | Powder |
| color | White to Almost white |
| Sensitive | Hygroscopic |
| λmax | λ: 380 nm Amax: 0.1 λ: 390 nm Amax: 0.05 λ: 400 nm Amax: 0.02 λ: 500 nm Amax: 0.02 |
| BRN | 3659024 |
| CAS DataBase Reference | 532-02-5(CAS DataBase Reference) |
| EPA Substance Registry System | 2-Naphthalenesulfonic acid sodium salt (532-02-5) |
Safety information for Sodium 2-naphthalenesulfonate
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P337+P313:IF eye irritation persists: Get medical advice/attention. |
Computed Descriptors for Sodium 2-naphthalenesulfonate
Sodium 2-naphthalenesulfonate manufacturer
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