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Questions related from Immad Amir
I'm experimenting on inorganic pigments, specifically iron oxide pigments. According to the reaction equation, FeCl3 and FeCl2 react with NaOH in ratio 325:127:320. Is there a way to decrease the...
27 June 2023 4,907 0 View
I am researching on iron oxide red pigments and their hues from calcining iron oxide black (prepared using liquid ammonia) at 650C+. All the shades I am getting do not have the right reddish hue...
18 June 2023 2,470 3 View
I am synthesizing magnetite nano particles using Fe2+ and Fe3+ chloride salt and ammonium hydroxide. In the Fe2+ and Fe3+ solution, I immediately add NH4OH with vigorous stirring to produce...
06 February 2023 1,720 3 View
I want to prepare a solution of FeCl2 + FeCl3 by dissolving Fe3O4 in HCl. However, my hot plate is broken and I'm wondering if I can prepare this solution without heating the mixture. If I do not...
16 January 2023 6,725 1 View
Hey, I am preparing a Magnetite in lab for using it as a pigment for a project. Among all of my trials, the pigment I produced was blackish or brown-blackish. However, the sample of magnetite...
07 January 2023 2,117 3 View
How can I avoid the ppt from turning brown-green from black? When I apply the ppt on a piece of paper to check the shade of the ppt, they start turning into Maghemite. I am concerned about the...
02 January 2023 5,715 4 View
Hello, I am synthesizing iron oxide black particles via co-precipitation reaction. However, I keep getting brown undertone iron oxide black. The sample I received from the market has a blue-gray...
01 January 1970 4,377 1 View
