XB-I
Metal Indicator
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Product codeX001 XB-I
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CAS No.14936-97-1
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Chemical name3-[3-(2,4-Dimethylphenylcarbamoyl)-2-hydroxynaphthaleN-1-ylazo]-4-hydroxybenzenesulfonic acid, sodium salt
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MWC25H20N3NaO6S=513.50
| Unit size | Price | Item Code |
|---|---|---|
| 1 g | ＄87.00 | X001-10 |
| 5 g | ＄312.00 | X001-12 |
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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
References
Open References
References
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.
Handling and storage condition
| Appearance： | Dark red to dark reddish brown powder |
|---|---|
| Solubility in ethyl alcohol： | To pass test (almost clear, red) |
| Absorbance： | ≧ 0.500 (around 605 nm) |
| Absorbance (Magnesium Complex)： | ≧ 0.200 (around 505 nm) |
| Sulfated ash： | ≦ 15.0 % |
| IR spectrum： | Authentic |
| Ambient temperature |
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