Trisodium naphthalene-1,3,6-trisulphonate Chemical Properties

storage temp. 

Inert atmosphere,Room Temperature

form 

powder to crystal

color 

White to Light yellow to Light orange

InChI

InChI=1S/C10H8O9S3.3Na/c11-20(12,13)7-1-2-9-6(3-7)4-8(21(14,15)16)5-10(9)22(17,18)19;;;/h1-5H,(H,11,12,13)(H,14,15,16)(H,17,18,19);;;/q;3*+1/p-3

InChIKey

NJPKYOIXTSGVAN-UHFFFAOYSA-K

SMILES

[Na+].[Na+].[Na+].C1(S([O-])(=O)=O)=C2C(C=C(S([O-])(=O)=O)C=C2)=CC(S([O-])(=O)=O)=C1

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

Hazard Codes 

Xi

Risk Statements 

38

Safety Statements 

22-24/25

WGK Germany 

3

HS Code 

2904100090

Trisodium naphthalene-1,3,6-trisulphonate Usage And Synthesis

Uses

Trisodium naphthalene-1,3,6-trisulphonate is a sodium benzenesulfonate compound, which can be used as an additive in zinc-ion electrolytes or as an organic additive to introduce sodium sulfonate groups in anode materials for sodium-ion batteries.

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

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