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2411-89-4 - o-Cresolphthalein complexone, indicator grade - o-Cresolphthalexon - Phthalein complexone - L03859 - Alfa Aesar

L03859 o-Cresolphthalein complexone, indicator grade

CAS-Nummer
2411-89-4
Synonyme
o-Cresolphthalexon
Phthalein complexone

Größe Preis ($) Menge Verfügbarkeit
1g 16,11
5g 41,32
25g 138,15
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o-Cresolphthalein complexone, indicator grade

MDL
MFCD00005911
EINECS
219-318-8

Chemische Eigenschaften

Formel
C32H32N2O12
Molmasse
636.62
Schmelzpunkt
ca 198° dec.
Löslichkeit
Soluble in NaOH (50 mg/ml), aqueous ammonia, and organic solvents. Insoluble in water.

Anwendungen

Indicator for complexometric titration of Mg, Ca, Sr and Ba. It is used as an alkaline earth metal ion indicator. Suggested to be colorless at pH 11, but turns pink in the presence of alkaline earth metals. Also utilized in an auto analyzer to determine serum calcium.

Bemerkungen

Store away from strong oxidizing agents. Keep container tightly closed. Store in cool, dry conditions in well sealed containers.

Literaturverweise

J. Stern; W.H.P. Lewis. The colorimetric estimation of calcium in serum with o-cresolphthalein complexone. Clinica Chimica Acta. 1957, 2, (6), 576-580.

F. H. Pollard and J. V. Martin. The spectrophotometric determination of the alkaline-earth metals with murexide, eriochrome black T and with o-cresolphthalein complexone. Analyst. 1956, 81, (963), 348-353.

Indicator for complexometric titration of Mg, Ca, Sr and Ba: Helv. Chim. Acta, 72, 113 (1954).

Weitere Referenzen

Beilstein
381994
Harmonized Tariff Code
2932.20
TSCA
Yes

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