Tag: Methemoglobin

The human body requires iron for many functions, including producing hemoglobin, the protein that carries oxygen in red blood cells. Heme iron, which is predominantly found in animal products, is fundamentally ferrous ($Fe^{2+}$), the functional form required for binding oxygen.

According to forensic science, the color and state of dried blood can help determine the time since it was shed. This fascinating process reveals that the final color of dehydrated blood is not a simple red, but a dark, often rusty-brown hue resulting from a complex chemical reaction.