In-Organic Pigments

In-Organic Pigments

Zinc Phosphate

Zinc Phosphate is an inorganic compound widely used for its corrosion-resistant properties, particularly as a coating on metal surfaces. It’s a white, crystalline solid that’s insoluble in water but dissolves in acids. It’s a key component in protective coatings, dental cements, and even some pesticides.

Benefits:
  • Corrosion Inhibition: Zinc phosphate is a highly effective corrosion inhibitor, forming a protective barrier on metal surfaces. It’s often used as a primer pigment and as part of electroplating processes.
  • Dental Cement: It’s a key ingredient in dental cements, used for permanent cementation of restorations.
  • Pesticide: Zinc phosphide, a related compound, is used as a rodenticide.
  • Other Applications: It can also be found in some phosphors and as a conversion coating for steel and aluminum.
Properties:
  • Metal Coatings: Zinc phosphate coatings are applied to ferrous metals like iron and steel to protect them from corrosion.
  • Dental Cements: Zinc phosphate cement is a long-standing material used in dentistry.
  • Paints and Primers: It’s a component in some paints and primers, offering corrosion protection.
  • Rodenticide: Zinc phosphide is a toxic substance used as a rodenticide.

Zinc Chromate PY 36

Zinc Chromate PY 36 is an anti-corrosive pigment. is a yellow, crystalline powder that has been used as a pigment, particularly in corrosion-inhibiting coatings and artists’ paints.

Benefits:
  • Color: Bright, green-shaded yellow.
  • Corrosion Inhibition: Zinc chromate’s anti-corrosive properties stem from its ability to release chromate ions, which act as a corrosion inhibitor, and its zinc oxide component, which makes it basic and able to react with acidic materials in the paint film.
Properties:
  • Primarily used in anti-corrosive primers for metal surfaces.
  • It’s found in paints, lacquers, and even some artists’ colors.

Middle Chrome PY 34

Middle Chrome 1070, also known as Middle Chrome Yellow, is a bright yellow inorganic pigment based on lead chromate. Valued for its versatility, it is widely used in paints, coatings, and inks. The pigment offers excellent resistance to heat, light, and weather, making it suitable for both interior and exterior applications.

Benefits:
  • Color: Bright yellow.
  • Composition: Primarily lead chromate.
  • Physical Form: Typically available as a powder.
  • Chemical Resistance: Good resistance to acids, alkalis, water, and solvents.
  • Heat Resistance: Exhibits good heat resistance, with some sources mentioning up to 180°C.
  • Light Fastness: Offers good light fastness, meaning it resists fading when exposed to light.
  • Weather Resistance: Demonstrates good resistance to weathering, making it suitable for outdoor use.
Properties:
  • Paints and Coatings: Widely used in industrial paints, including alkyd/stoving paints, coil coatings, and powder coatings.
  • Road Marking Paints: A key ingredient for durable and visible road marking paints.
  • Inks: Used in offset inks and other printing inks.
  • Plastics: Suitable for pigmenting plastics and PVC leather.