Application: Mg detection, colorimetric

ChemicalName:3-[3-(2,4-Dimethylphenylcarbamoyl)-2-hydroxynaphthalen-1-ylazo]-4-hydroxybenzenesulfonic acid, sodium salt
CAS: 14936-97-1

Appearance: Dark red or dark reddish brown powder
Absorbance in 55% EtOH (0.027 mmol/l): ≥0.500 (around 605 nm)
Absorbance in 60% EtOH (0.055 mmol/l, Mg complex): ≥0.200 (around 505 nm)
513.50, C25H20N3NaO6S

Storage Condition: ambient temperature
Shipping Condition:
ambient temperature

Product Description
XB-I is a colorimetric reagent for Mg detection. It is slightly soluble in water and alcohol, and readily soluble in aqueous alkaline solution. The aqueous solution of XB-1 is red, and turns reddish-violet in the presence of Mg at pH 9 (maximum wavelength:  510 nm, molar absorptivity: 49,000, detection range 0.02-0.4 ppm).

Product Description

C. K. Mann, et al., Spectrophotometric Determination of Magnesium with 1-Azo-2-hydroxy-3-(2,4-dimethylcarboxanilido)naphthalene-1 E(2-hydroxybenzene). Anal Chim Acta. 1957;16:155-160.

Item # Description/Size Availability Qty Break Price Quantity
1 g
8-14 business days 1 $72.00
5 g
8-14 business days 1 $262.00

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