Cas No. 74-39-5
Molecular formula C12H9N3O4; O2NC6H4N = NC6H3-1,3- (OH) 2
Molecular weight 259.22
Magneson I
Red-brown powder, soluble in dilute alkaline solution, reddish purple, slightly soluble in boiling alcohol, acetone, acetic acid and toluene, all yellow, insoluble in water. The maximum absorption wavelength is 432nm. Irritating.
Melting point: 199-200 ℃ Item Item is analytically pure
(AR)
Passed Solubility in sodium hydroxide dissolution test
in sodium hydroxide solution
Sensitivity Qualified Ignition residue (calculated as sulfate) Ignition residue,% ≤0.3 sealed and stored.
Product use Determination of magnesium, adsorption indicator.
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