XB-I

XB-I

Metal Indicator

  • Product code
    X001  XB-I
  • CAS No.
    14936-97-1
  • Chemical name
    3-[3-(2,4-Dimethylphenylcarbamoyl)-2-hydroxynaphthaleN-1-ylazo]-4-hydroxybenzenesulfonic acid, sodium salt
  • MW
    C25H20N3NaO6S=513.50
Unit size Price Item Code
1 g $76.00 X001-10
5 g $276.00 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

Specification
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
Handling and storage condition
Ambient temperature
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