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3737-95-9 - Calconcarboxylic acid - 3-Hydroxy-4-(2-hydroxy-4-sulfo-1-naphthylazo)-2-naphthalenecarboxylic acid - Patton and Reeder's Reagent - B23459 - Alfa Aesar

B23459 Calconcarboxylic acid

Codice CAS
3737-95-9
Sinonimi
3-Hydroxy-4-(2-hydroxy-4-sulfo-1-naphthylazo)-2-naphthalenecarboxylic acid
Patton and Reeder's Reagent

Dimensioni Prezzo ($) Quantità Disponibilità
10g 37,28
50g 124,63
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Calconcarboxylic acid

MDL
MFCD00004078
EINECS
223-117-0

Proprietà chimiche

Formula
C21H14N2O7S
Peso formula
438.42
Punto di fusione
ca 300° dec.
Solubilità
Soluble in water, ethanol, sodium hydroxide and methanol.

Applicazioni

Calconcarboxylic acid is used as an indicator for calcium titrations with ethylenediaminetetraacetic acid (EDTA) in the presence of magnesium.

Note

Incompatible with strong oxidizing agents.

Letteratura

Indicator for complexometric determination of Ca in the presence of Mg: Anal. Chem., 28, 1026 (1956); Analyst, 106, 227 (1981).

Zhu, Z.; Zhu, X.; Shen, J.; Zhou, A.; Ni, M.; Jin, L.; Cong, W. A new fluorescent quenching method for the determination of phosphoproteins by using calconcarboxylic acid. Electrophoresis 2015, 36 (6), 924-929.

Peng, J.; Dong, N.; Dong, Y.; Pan, Z.; Li, W. Solubility, Metastable Zone Width, and Nucleation Kinetics of Boric Acid in the NaCl-KCl-CaCl2-H2O System. J. Chem. Eng. Data 2015, 60 (11), 3341-3346.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Dichiarazioni precauzionali: P261-P280-P305+P351+P338-P304+P340-P362-P312-P321-P405-P403+P233-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Take off contaminated clothing and wash before reuse. Call a POISON CENTER or doctor/physician if you feel unwell. Specific treatment (see label). Store locked up. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Beilstein
727492
Codice tariffe armonizzato
2927.00
TSCA
Yes

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