Azomethin-H-Monosodium Salt Hydrate [ 206752-32-1 ]

Azomethine H is a colorimetric reagent for boron detection; it forms an orange complex with boron in aqueous solution. The molar absorptivity of this complex is 1.01×104 at 415 nm. The detection range of boron in sample solutions is 1-6 μg per ml. To detect boron in plant samples, EDTA is used to mask copper, iron, and aluminum ions. Azomethine H is used to detect microgram levels of boron in glass and steel samples.