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Arsenazo III

p.a., for the determination of Th, Zr, U, Cd, Zn, Ca

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Synonym

2,7-Bis(2-arsonophenylazo)chromotropic acid

Arsenazo III Beckman^®

2,2′-(1,8-Dihydroxy-3,6-disulfonaphthylene-2,7-bisazo)bisbenzenearsonic acid

Molecular Formula

(HO)₂C₁₀H₂(SO₃H)₂(N=NC₆H₄AsO₃H₂)₂

Molecular Weight

776.37

CAS Number

1668-00-4

Beilstein Registry Number

5717957

MDL number

MFCD00036695

PubChem Substance ID

24846864

EG/EC Number

216-788-6

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Descriptions

Other Notes

Reagent for the determination of Th, U, Zr and rare earth metals^1,²; Calcium indicator dye³

Legal Information

Beckman is a registered trademark of Beckman Instruments, Inc.

Properties

grade

p.a.

quality

for the determination of Th, Zr, U, Cd, Zn, Ca

>320 °C(lit.)

cation traces

Ca: ≤100 mg/kg

Cd: ≤50 mg/kg

Cr: ≤200 mg/kg

Mg: ≤50 mg/kg

Mo: ≤50 mg/kg

Zn: ≤50 mg/kg

References

Cited Reference

1. H. Onishi, K. Sekine Talanta 19, 473, (1972)

2. T. Kiriyama, R. Kunoda Anal. Chim. Acta 71, 375, (1974)

3. D.R. Yingst, J.F. Hoffman Anal. Biochem. 132, 431, (1983) abstract

Beilstein

Beil. 16,IV,1194

reference

Aldrich MSDS 1, 136:B / Corp MSDS 1 (1), 308:B / FT-IR 2 (3), 4109:B / FT-IR 1 (2), 999:C / IR-Spectra (3), 1468:B / IR-Spectra (2), 1268:G / RegBook 1 (2), 2761:G / Sigma FT-IR 1 (2), 100:A / Stains and Dyes Ref, 99 / Structure Index 1, 438:C:1

Safety

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

Related Categories

... Indicators > Metal Titration Indicators

MSDS

Certificate of Analysis

More Information