(4) in forceps. In the blue flame, fuses on edges and remains magnetic.
(4) in forceps. V. In the blue flame is converted into Fe^{ 2}O^{ 4}, and then behaves as the preceding.
Formula. ([.Fe][.Zn][.Mn]) ([...Fe=][...Mn=]).
(3) on charcoal. Forms a white incrustation on the charcoal, which moistened with cobalt solution assumes a green color.
(4) in forceps. V. In the blue flame fuses on edges and and becomes magnetic.
(5) in borax. Gives the iron and manganese reaction.
(7) with carb. soda. Affords a considerable white incrustation of ZnO.
(8) Special reactions. Gives a strong manganese reaction with nitre and carbonate of soda.
(4) in forceps. V. In reducing flame fuses on edges and becomes magnetic.
(6) in mic. salt. In oxidizing flame exhibits the iron reaction. In reducing flame assumes a deep brownish red color.
(5) in borax. Dissolves slowly and gives the chromium reaction.
(7) with carb. soda. On platinum foil with nitre and carbonate of soda affords a yellow mass of chromate of potassa.
Formula. 3([.Fe][.Ca])^{ 3}[...Si] + 2[...Fe=][...Si].
(1) in glass-bulb. Occasionally gives off some water and turns black.
(3) on charcoal. Fuses to a black globule, which in the reducing flame becomes magnetic.
(4) in forceps. I. In reducing flame is magnetic.
(6) in mic. salt. Gives the iron and silica reactions.
(7) with carb. soda. Fuses to a black opaque bead.
(8) Special reactions. Generally gives the manganese reaction with nitre and carbonate of soda.
(1) in glass-bulb. Decrepitates more or less, gives off much water and turns black.
(4) in forceps. V. Loses color and turns black.
(6) in mic. salt. Gives the iron and silica reaction.
(7) with carb. soda. Fuses to a transparent green glass.
Formula. [...Si],[.Fe],[...Al=],[.Na],[.K],[.H], etc.
(1) in glass-bulb. Gives off water and becomes darker in color.
(4) in forceps. V. In reducing flame fuses on edges and colors the outer flame yellow ([.Na]) or violet ([.K]).
(7) with carb. soda. Forms a slaggy mass.
(1) in glass-bulb. Occasionally decrepitates. Gives off CO^{ 2} and turns black and magnetic.
(4) in forceps. Behaves similarly to the magnetic oxide.
(5) in borax. Gives the iron and manganese reaction.
(7) with carb. soda. Behaves as an oxide. With nitre and carbonate of soda on platinum generally gives the manganese reaction.