Yellow pigment, history, uses, and formula

Yellow Pigment, History, Types, and Applicatins

What is yellow Pigment?

Yellow pigment is a synthetic or manufactured pigment that is used in various applications such as painting, scagliola, concrete, and cosmetics.

It is a type of iron oxide with a chemical formula of FeO(OH) and a goethite structure, which provides a dull buff shade.

Yellow pigment is not cosmetic or pharmaceutical grade, but it is suitable for all mediums. It is also known to have excellent UV stability.

However, yellow is the least color-stable form of iron oxide.

This powder is produced from a kind of yellow iron oxide, which is known as Mush Mude or limonite powder in the industry.
Among Yellow Iron Oxide features, the following can be mentioned:

  • It dissolves slowly in HCL.
  • It turns into limonite by losing water.
  • It has an iron III atom.
  • It has no magnetic properties and crystallizes in the orthorhombic system.

 

 

 

The yellow pigment has various uses in various industries, including the following:

  • In the paint and dye industries as a pigment
  • Colored home flooring
  • Prefabricated concrete
  • Production of colored bricks
  • Asphalt and colored asphalt
  • In art and painting
  • Use in plastic resin compounds
  • All kinds of ceramics and colored ceramics
  • All kinds of building materials
  • All kinds of ink
  • All kinds of colored cement blocks
  • For use in concrete washing

What is the chemical formula of this powder?

The chemical formula for yellow iron oxide pigment is FeO(OH).

However, some sources mention that the main component of iron oxide yellow is iron oxide, the chemical formula Fe2O3H2O, which is a monohydrate of iron oxide.

Another source mentions that the molecular formula of Iron Oxide Yellow 313 is Fe2O3H2O. It is important to note that Iron Oxide Yellow (PY42) Pigment Yellow 42 (C.I. 77492) is a yellow Iron Oxide with the chemical formula FeO(OH).

What are the common uses of this pigment?

Yellow pigment is widely used in various applications such as coating, printing ink, paint, and coloring agent for building materials, rubber, paper-making, plastic, cement, animal feeds, fertilizer, magnetic recording materials, and cosmetics.

It is also used in cold process soaps as it is stable.

This powder is suitable for all mediums and has excellent UV stability. It is also lime and cement color stable. Just a 1/2 oz of yellow iron oxide pigment can tint or color about 20 lbs of a product.

Ferro offers a basic series of yellow iron oxide pigments recommended for plastics, coatings, cement, and concrete applications.

Is yellow iron oxide pigment safe for cosmetic use?

It is safe for cosmetic use as it is graded safe for cosmetic use and is produced synthetically to avoid the inclusion of impurities normally found in naturally occurring iron oxides including ferrous or ferric oxides, arsenic, lead, and other poisonous substances.

The Food and Drug Administration (FDA) lists iron oxides as a color additive exempt from certification and safe for use in coloring products, including cosmetics and personal care products applied to the lips and the eye area, undivided they meet certain specifications.

Oxidesxideare s are considered to be safe as used in cosmetics and personal care products because they are non-toxic and non-allergenic.

What is the difference between natural and synthetic yellow pigment?

The main difference between natural and synthetic yellow iron oxide pigments is based on their purity.

Natural iron oxide pigments contain contaminants that reduce their purity, while synthetic iron oxide pigments are highly saturated and cleaner in color than natural iron oxides, which can contain naturally occurring impurities.

Synthetic iron oxide pigments tend to have a smaller pigment particle size than natural earth-based pigments. Yellow iron oxide is a synthetic material of very fine particle size, but not as fine as black or red.

In ceramics, yellow iron oxide is used in glazes, engobes, or bodies where permanent yellow is required.

How to order yellow pigment?

To order this product and other products of Aref Chemical Company, contact us through this page.
Our colleagues will answer you as soon as possible.

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