Trisodium naphthalene-1,3,6-trisulphonate
- CAS NO.：5182-30-9
- Empirical Formula: C10H5Na3O9S3
- Molecular Weight: 434.31
- MDL number: MFCD00003989
- EINECS: 225-962-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-12-31 14:38:37
What is Trisodium naphthalene-1,3,6-trisulphonate?
Purification Methods
The free acid is obtained by passing the salt through an ion-exchange column and converting it to the lanthanum salt by treatment with La2O3. This salt is crystallised twice from hot water. [The much lower solubility of La2(SO4)3 and its retrograde temperature dependence allows a good separation from sulfate impurity]. The lanthanum salt is then passed through an appropriate ion-exchange column to obtain the free acid, the sodium or potassium salt. (The sodium salt is hygroscopic.) [Atkinson et al. J Am Chem Soc 83 1570 1961.] It can also be recrystallised from aqueous acetone [Okahata et al. J Am Chem Soc 108 2863 1986]. 574 Purification of Metal-Organic Compounds
Properties of Trisodium naphthalene-1,3,6-trisulphonate
| storage temp. | Inert atmosphere,Room Temperature |
| form | powder to crystal |
| color | White to Light yellow to Light orange |
| CAS DataBase Reference | 5182-30-9(CAS DataBase Reference) |
| EPA Substance Registry System | 1,3,6-Naphthalenetrisulfonic acid, trisodium salt (5182-30-9) |
Safety information for Trisodium naphthalene-1,3,6-trisulphonate
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation 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. |
Computed Descriptors for Trisodium naphthalene-1,3,6-trisulphonate
| InChIKey | NJPKYOIXTSGVAN-UHFFFAOYSA-K |
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