Thorin (chemistry)
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Names | |
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Preferred IUPAC name
Disodium 3-hydroxy-4-[(2-arsonophenyl)diazenyl]naphthalene-2,7-disulfonate | |
Systematic IUPAC name
Disodium 4-[2-(2-arsonophenyl)hydrazin-1-ylidene]-3-oxo-3,4-dihydronaphthalene-2,7-disulfonate | |
Other names
Disodium 4-[2-(2-arsonophenyl)hydrazin-1-ylidene]-3-oxonaphthalene-2,7-disulfonate 2-(3,6-Disulfo-2-hydroxy-1-naphthylazo)benzenearsonic acid disodium salt | |
Identifiers | |
3688-92-4 (4E)-4-hydrazin-1-ylidene ![]() | |
3D model (Jmol) | Interactive image Interactive image |
2957648 | |
ChemSpider | 5020708 (4E)-4-hydrazin-1-ylidene ![]() 4895471 ![]() |
ECHA InfoCard | 100.020.903 |
EC Number | 222-993-1 |
PubChem | 6364518 6537679 (4E)-4-hydrazin-1-ylidene |
UN number | 1557 |
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Properties | |
C16H11AsN2O10S2 | |
Molar mass | 530.31 g·mol−1 |
Appearance | Orange-yellow crystals |
Melting point | 300 °C (572 °F; 573 K) |
Hazards | |
Main hazards | Toxic (T), Dangerous for the environment (N) |
R-phrases | R23/25, R50/53 |
S-phrases | S20/21, S28, S45, S60, S61 |
NFPA 704 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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Infobox references | |
Thorin (also called Thoron or Thoronol) is an indicator used in the determination of barium, beryllium, lithium, uranium and thorium compounds. Being a compound of arsenic, it is highly toxic.
References
Analytical Chemistry, 51, 2293 (1979).
External links
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