Identification | More | [Name]
Trisodium 1,3,6-naphthalenetrisulfonate | [CAS]
5182-30-9 | [Synonyms]
1,3,6-NAPHTHALENETRISULFONIC ACID SODIUM SALT 1,3,6-NAPHTHALENETRISULFONIC ACID TRISODIUM SALT 1,3,6-NAPTHTHALENE TRISULFONIC ACID SODIUM SALT NAPHTHALENE-1,3,6-TRISULFONIC ACID TRISODIUM SALT SODIUM-1,3,6-NAPHTHALENETRISULFONATE SODIUM NAPHTHALENE-1,3,6-TRISULFONATE TRISODIUM 1,3,6-NAPHTHALENE TRISULFONATE 1,3,6-Naphthalene-Trisulphonate Sodium 1,3,6-naphthalenetrisulfonate tribasic hydrate trisodium naphthalene-1,3,6-trisulphonate 1,3,6-Naphthalene Trisulfonic Acid Trisodium trisodium naphthalene-1,3,6-trisulfonate SodiumNaphthalene-1,3,6-sulfonate Naphthalene-1,3,6-tris(sulfonic acid sodium) salt Trisodium 1,3,6-naphthalenetrissulfonate | [EINECS(EC#)]
225-962-0 | [Molecular Formula]
C10H5Na3O9S3 | [MDL Number]
MFCD00003989 | [Molecular Weight]
434.31 | [MOL File]
5182-30-9.mol |
Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R38:Irritating to the skin. | [Safety Statements ]
S22:Do not breathe dust . S24/25:Avoid contact with skin and eyes . | [WGK Germany ]
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Hazard Information | Back Directory | [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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