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ARSENAZO III DISODIUM SALT

CAS No.
62337-00-2
Chemical Name:
ARSENAZO III DISODIUM SALT
Synonyms
ARSENAZO III DISODIUM SALT;Arsenazo III disodium salt p.a.;ARSENAZO III DISODIUM SALT, REAG.;2,7-BIS(O-ARSONOPHENYLAZO) CHROMOTROPIC ACID;disodium 3,6-bis[(o-arsonophenyl)azo]-4,5-dihydroxynaphthalene-2,7-disulphonate;2,7-BIS(2-ARSENOPHENYLAZO)-1,8-DIHYDROXYNAPHTALENE-3,6-DISULFONIC ACID, DISODIUM SALT;3,6-Bis[(2-arsonophenyl)azo]-4,5-dihydroxy-2,7-naphthalenedisulfonic acid disodium salt;(3E,6E)-3,6-bis[(2-arsonophenyl)hydrazinylidene]-4,5-dioxonaphthalene-2,7-disulfonic acid;3,6-bis(2,2'-arsonophenylazo)-4,5-dihydroxy-2,7-naphthalenedisulfonic acid, disodium salt;3,6-Bis[2-(2-arsonophenyl)diazenyl]-4,5-dihydroxy-2,7-naphthalenedisulfonic Acid SodiuM Salt
CBNumber:
CB8251091
Molecular Formula:
C22H19As2N4NaO14S2
Molecular Weight:
800.36
MDL Number:
MFCD00003936
MOL File:
62337-00-2.mol
Last updated:2023-04-23 13:52:06

ARSENAZO III DISODIUM SALT Properties

Melting point >320 °C(lit.)
color Clear pink
Water Solubility Soluble in water.

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictograms
GHS06,GHS09
Signal word  Warning
Hazard statements  H301-H331-H400-H410
Precautionary statements  P261-P301+P310a-P304+P340-P311a-P405-P501a
Hazard Codes  T,N
Risk Statements  23/25-50/53
Safety Statements  20/21-28-45-60-61
RIDADR  UN 3465 6.1/PG 2
WGK Germany  3
HazardClass  6.1
PackingGroup  II
NFPA 704
1
3 0

ARSENAZO III DISODIUM SALT price More Price(7)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Alfa Aesar A11838 Arsenazo III disodium salt 62337-00-2 1g $41.8 2021-12-16 Buy
Alfa Aesar A11838 Arsenazo III disodium salt 62337-00-2 5g $139 2021-12-16 Buy
Alfa Aesar A11838 Arsenazo III disodium salt 62337-00-2 25g $497 2021-12-16 Buy
TRC A774200 Arsenazo III disodium salt 62337-00-2 100mg $155 2021-12-16 Buy
American Custom Chemicals Corporation OGM0001828 ARSENAZO(III)DISODIUM SALT 98.00% 62337-00-2 100MG $739.2 2021-12-16 Buy
Product number Packaging Price Buy
A11838 1g $41.8 Buy
A11838 5g $139 Buy
A11838 25g $497 Buy
A774200 100mg $155 Buy
OGM0001828 100MG $739.2 Buy

ARSENAZO III DISODIUM SALT Chemical Properties,Uses,Production

Chemical Properties

dark brown to brownish-black crystalline powder

Uses

Arsenazo-III is a diazo dye reagent used in the spectrophotometric determination of aluminum, gallium and indium. Toxic if swallowed. Toxic if inhaled. Very toxic to aquatic life.

Uses

Arsenazo III disodium salt is a diazo dye reagent used in the spectrophotometric determination of aluminum, gallium and indium. Further, it is used in the complexometric determination of lanthanides, thallium, scandium thorium, uranium and yttrium. In addition to this, it acts as a metal indicator and form specifically colored metal ion complexes in aqueous media.

Purification Methods

Contaminants include monoazo derivatives, starting materials for synthesis and by-products. It is partially purified by precipitation of the dye from aqueous alkali on addition of HCl. More thorough purification is achieved by taking a 2g sample in 15-25mL of 5% aqueous NH3 and filter. Add 10mL HCl (1:1) to the filtrate to precipitate the dye. Repeat the procedure and dissolve the solid dye (0.5g) in 7mL of a 1:1:1 mixture of n-propanol/conc NH3/water at 50o. After cooling, filter the solution and chromatograph the filtrate through a cellulose column using a 3:1:1 mixture of n-propanol/conc NH3/water as eluent. Collect the blue band and evaporate it to 10-15mL below 80o, then add 10mL of conc HCl to precipitate pure Arsenazo III. Wash it with EtOH and dry it in air [Borak et al. Talanta 17 215 1970]. The sodium salt is then obtained by dissolving it in the equivalent amount of dilute NaOH and freeze-drying. The purity of the dye can be checked by paper chromatography using M HCl as eluent. It is used for the estimation of Th, U, Zr, Cd and Zn [Michaylova & Yuroukova Anal Chim Acta 68 73 1974.]

ARSENAZO III DISODIUM SALT Preparation Products And Raw materials

Raw materials

Preparation Products

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CONIER CHEM AND PHARMA LIMITED
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Arsenazo III disodium salt p.a. 3,6-Bis[2-(2-arsonophenyl)diazenyl]-4,5-dihydroxy-2,7-naphthalenedisulfonic Acid SodiuM Salt ARSENAZO III DISODIUM SALT 2,7-BIS(O-ARSONOPHENYLAZO) CHROMOTROPIC ACID 2,7-BIS(2-ARSENOPHENYLAZO)-1,8-DIHYDROXYNAPHTALENE-3,6-DISULFONIC ACID, DISODIUM SALT disodium 3,6-bis[(o-arsonophenyl)azo]-4,5-dihydroxynaphthalene-2,7-disulphonate ARSENAZO III DISODIUM SALT, REAG. 3,6-bis(2,2'-arsonophenylazo)-4,5-dihydroxy-2,7-naphthalenedisulfonic acid, disodium salt 3,6-Bis[(2-arsonophenyl)azo]-4,5-dihydroxy-2,7-naphthalenedisulfonic acid disodium salt (3E,6E)-3,6-bis[(2-arsonophenyl)hydrazinylidene]-4,5-dioxonaphthalene-2,7-disulfonic acid 62337-00-2 C22H18As2N4O14S22Na C22H16As2N4Na2O14S2 C22H16As2N4O14S22Na Aromatics Sulfur & Selenium Compounds