When we buy iron oxide yellow pigment, it is generally in powder form, but it is impossible to use powdered iron oxide yellow when we use it. It is necessary to make iron oxide yellow powder into a color paste. What do we need to pay attention to in this process? ?The iron oxide yellow pigment manufacturer will give you a brief description:
Making iron oxide yellow color paste (ferric hydroxide colloid) can exert more effects, but in the process of making iron oxide yellow color paste, we must pay attention to some operational matters, otherwise it will affect the quality of the color paste. And performance has an impact. So what are the matters needing attention in the process of preparing color paste?
Add 50mL of water to a 100mL beaker and heat it to boiling, add a few drops of saturated iron oxide yellow solution to the boiling water droplets, continue to boil until the solution is reddish brown, stop heating. Matters needing attention during this operation:
(1) Do not use a glass rod to stir during the experiment, otherwise the solution will become turbid.
(2) When the reaction system is reddish-brown, ferric hydroxide colloid is produced. At this time, the heating should be stopped immediately, otherwise turbidity will easily appear and red-brown ferric hydroxide precipitates.
Therefore, if you want to obtain a color paste of high quality and excellent performance, when preparing the color paste with iron oxide yellow, you must strictly follow the correct preparation method and strictly regulate your own operating behavior, so as to avoid the impact of improper operation. Possibility of pulp quality.
