As in, "How is commercial pigment (for paints etc.) made?"
The process for making pigment, mostly titanium dioxide (TiO2), starts with mineral sands. This sand is mined from old (often ancient) beaches and contains high levels of TiO2 minerals, such as rutile and ilmenite.
The sand is put through various separators, most of which make use of the magnetic and conductive properties of the various minerals in the sand to do the separation. From this you get a high TiO2 ore.
The ore can then be processed using either;
In the chloride process, the ore is reacted with chlorine (Cl2) at very high temperatures to form titanium chloride gas (TiCl). The gas is purified and reacted with oxygen (O2) to form TiO2 again, but in a much purer form. The TiO2 is then granulated into tiny but specifically sized particles, and these particles are coated with various chemicals that make the pigment work better in whatever product it will be used for. This process is the newest and most common in developed countries.
The sulphate process instead uses large amounts of sulphuric acid as the main reactant. It is still widely used in developing countries such as China.
Green.
Red.
Tim had a pigment discoloration on his skin.
The blanket had a deep red pigment to it.
The absorption spectrum of pigment is the molecules response to light. The color of the pigment depends on the wavelengths of light the do not absorb.
Yes! :-)
melanin is black pigment found in the epidermisMelaninMelanin
a albino has no pigment
Chlorophyll B is an example of an accessory pigment in plants.
Skin and hair pigment comes from a product made by melanocytes and is called melanin.
Epidermal pigment is pigment that is on the outer layer of the skin. In humans, that is usually melanin, which is the pigment that makes up skin.
Pigment or pigments.
That pigment is chlorophyll.
what is clhoroyll type of pigment
all plant commonly have a green pigment and that pigment is what we call as chlorophyll, if a plant don't have chlorophyll or green pigment it means that it is not a plant it is a fungi.
Yes that is true.It is the primary pigment
Chlorophyll a is the most abundant pigment and it is the pigment that reflects green.