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CAS RN: 3688-92-4 | Product Number: H0240

Thorin [for Determination of Th, etc.]


Purity: >98.0%(T)(HPLC)
Synonyms:
  • 1-(2-Arsonophenylazo)-2-naphthol-3,6-disulfonic Acid Disodium Salt
  • Aspan
  • 2-(2-Hydroxy-3,6-disulfo-1-naphthylazo)benzenearsonic Acid Disodium Salt
  • Thoron
  • Disodium 1-(2-Arsonophenylazo)-2-naphthol-3,6-disulfonate
Documents:
1G
$44.00
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Product Number H0240
Purity / Analysis Method >98.0%(T)(HPLC)
Molecular Formula / Molecular Weight C__1__6H__1__1AsN__2Na__2O__1__0S__2 = 576.29 
Physical State (20 deg.C) Solid
Store Under Inert Gas Store under inert gas
Condition to Avoid Hygroscopic
CAS RN 3688-92-4
PubChem Substance ID 87570668
MDL Number

MFCD00003888

Specifications
Appearance Orange to Brown to Dark red powder to crystal
Purity(HPLC) min. 98.0 area%
Purity(Iodometric Titration) min. 98.0 %(after drying)
Lambda max. 480.0 to 490.0 nm(H2O)
Absorbance min. 0.500(25mg/L, H2O, 480.0 to 490.0 nm)(calcd.on dried substance)
Drying loss max. 20.0 %
Sensitiveness Colorimetric Test : Turn Yellow red with Sodium sulfate and turn Red by adding Barium perchlorate
Properties (reference)
Maximum Absorption Wavelength 485(H2O) nm
Solubility in water Slightly soluble
Solubility (insoluble in) Ether, Ethanol
GHS
Pictogram Pictogram Pictogram
Signal Word Danger
Hazard Statements H301 + H331 : Toxic if swallowed or if inhaled.
H410 : Very toxic to aquatic life with long lasting effects.
Precautionary Statements P501 : Dispose of contents/ container to an approved waste disposal plant.
P261 : Avoid breathing dust/ fume/ gas/ mist/ vapors/ spray.
P273 : Avoid release to the environment.
P270 : Do not eat, drink or smoke when using this product.
P271 : Use only outdoors or in a well-ventilated area.
P264 : Wash skin thoroughly after handling.
P391 : Collect spillage.
P301 + P310 + P330 : IF SWALLOWED: Immediately call a POISON CENTER/doctor. Rinse mouth.
P304 + P340 + P311 : IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER/doctor.
P403 + P233 : Store in a well-ventilated place. Keep container tightly closed.
P405 : Store locked up.
Related Laws:
Transport Information:
UN Number (DOT-AIR) UN3465
Class (DOT-AIR) 6.1
Packing Group (TCI-A) II
HS Number 2933.39.9200
PubMed Literature


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