THORIN 1

• Catalog No.: 02152135
• CAS Number: 3688-92-4
• M. F.: C16H11AsN2Na2O10S2
• M. W.: 576.29708
• Storage: Room Temperature (15-30°C), Desiccate

SYNONYMS

• IUPAC name: disodium 4-[2-(2-arsonophenyl)diazen-1-yl]-3-hydroxynaphthalene-2,7-disulfonate
• IUPAC Traditional name: dipotassium 4-[2-(2-arsonophenyl)diazen-1-yl]-3-hydroxynaphthalene-2,7-disulfonate
• Synonyms: 2-(2-Hydroxy-3,6-disulfo-1-naphthylazo)phenylarsonic acid disodium salt; APANS; o-[3,6-Disulfo-2-hydroxy-1-naphthyl-azo]-benzenearsonic acid; 1-(2-Arsonophenylazo)-2-naphthol-3,6-disulfonic acid disodium salt; Thoron(ol); 2-(3,6-Disulfo-2-hydroxy-1-naphthylazo)benzenearsonic acid disodium salt

DATABASE IDS

• CAS Number: 3688-92-4
• EC Number: 222-993-1

PROPERTIES

• Australian Hazchem: 2X
• Emergency Response Guidebook(ERG) Number: 171
• European Hazard Symbols: Nature polluting (N)
• European Hazard Symbols: Toxic (T)
• Risk Statements: R:58-23/25
• Safety Statements: S:28-45-20/21-61
• Storage Condition: Room Temperature (15-30°C), Desiccate
• Hazard Class: 9
• UN Number: 3077
• Packing Group: III

DETAILS

Description (English)

Disodium Salt
Indicator for determination of hafnium, thorium, and zirconium.

REFERENCES

• Horton, A.D., Anal. Chem., 25: 1331, (1953).