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THORIN

Basic information Safety Supplier Related

THORIN Basic information

Product Name:
THORIN
Synonyms:
  • ASPAN
  • APANS
  • DISODIUM-1-(O-ARSONOPHENYLAZO)-2-NAPHTHOL-3,6-DISULFONIC ACID
  • 1-(O-ARSONOPHENYLAZO)-2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT
  • 2-[(2-HYDROXY-3,6-DISULFO-1-NAPHTHYL)AZO]BENZENEARSONIC ACID DISODIUM SALT
  • 2-(2-HYDROXY-3,6-DISULFO-1-NAPHTHYLAZO)-BENZENE-ARSONIC ACID SODIUM SALT OCTAHYDRATE
  • 2-(2-HYDROXY-3,6-DISULFO-1-NAPHTHYLAZO)PHENYLARSONIC ACID DISODIUM SALT
  • 2-(3,6-DISULFO-2-HYDROXY-1-NAPHTHYLAZO)BENZENE ARSONIC ACID, DISODIUM
CAS:
3688-92-4
MF:
C16H11AsN2Na2O10S2
MW:
576.3
EINECS:
222-993-1
Product Categories:
  • Analytical Chemistry
  • As (Arsenic) Compounds
  • Azo Compounds
  • Chelating Reagents
  • Classes of Metal Compounds
  • Naphthylazo Compounds
  • Semimetal Compounds
Mol File:
3688-92-4.mol
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THORIN Chemical Properties

Melting point:
>300°C
storage temp. 
Store at +5°C to +30°C.
pka
pK1:3.7;pK2:8.3;pK3:11.8 (25°C)
PH
6.1 (10g/l, H2O, 20℃)
Water Solubility 
Soluble in water.
InChIKey
DCSRPHQBFSYJNN-BUFQOAPZSA-L
CAS DataBase Reference
3688-92-4(CAS DataBase Reference)
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Safety Information

Hazard Codes 
T,N
Risk Statements 
23/25-50/53
Safety Statements 
20/21-28-45-60-61
RIDADR 
UN 3465 6.1/PG 3
WGK Germany 
3
TSCA 
Yes
HazardClass 
6.1(a)
PackingGroup 
II
HS Code 
29270000

MSDS

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THORIN Usage And Synthesis

Chemical Properties

red to red-brown powder

Definition

A reagent for the colorimetric determination of microgram quantities of thorium.

Hazard

Toxic by ingestion.

THORINSupplier

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