Appearance and properties: black solid

Density: 4.8-5.1 g/mL at 25 °C(lit.)

Melting point: 1538 °C(lit.)

Flash point: 7 °C

Refractive index: 3.0

Stability: Stable. Incompatible with strong acids, chloroformates, peroxides.

Storage conditions: Store in a cool, dry, well-ventilated area away from incompatible substances.

Usage:

1. Used as a pigment for watercolor, oil color and ink. The paint industry is used to manufacture anti-rust paint and other primers. Construction industry for artificial marble and cement floor coloring. The electronic telecommunications industry is used to manufacture magnetic steel, and is also used as a cathode plate for alkaline dry batteries. Used in machine manufacturing for steel inspection.

2. Used in the coating industry for the manufacture of anti-rust coatings, primers and magnetic coatings. In the construction industry, it is used for coloring artificial marble and cement floors and as an anti-rust agent. The electronic telecommunications industry is used to make magnetic materials. It is also a black pigment for inks, watercolors, and oils. Food grade products can be used for food and cosmetics.