Iron oxide black CAS 12227-89-3 is a black or black red powder, which is an adduct of ferrous oxide and iron trioxide. The relative density is 5.18. The melting point is 1594 ℃. Insoluble in water and alcohol, soluble in concentrated acids and hot strong acids. Having magnetism. The coloring power and covering power are both high. Good light and atmospheric resistance. Anhydrous permeability and

Oil permeability. Stable in general organic solvents. Good alkali resistance. Heat resistant to 100 ℃, easily oxidized by high temperature, turning into red iron oxide. When burned at 200-300 ℃, type 7 iron oxide is formed.

Chinese name: Iron oxide black

English name: C.I. Pigment Black 11

Nickname: Iron Black; Iron oxide black; Iron oxide black; Nano iron oxide black; S130 iron oxide red; S110 iron oxide red; C. I. Pigment Black 11; Food grade iron tetroxide (iron oxide black; nano iron oxide black FE3O4 (nano iron tetroxide, nano FE3O4)

English alias: 77499; Kjasdiwals; c. I. 77499; Iron oxide black; IRON OXIDE BLACK; C. I. Pigment Black 11; Iron Oxide Black Food grade; Iron Oxide Black phantom grade; Iron Oxide Black Cosmetic grade

CAS: 12227-89-3; 58339-39-2; 65777-20-0; 65777-22-2

EINECS: 235-442-5

Chemical formula: Fe3O4

Molecular weight: 231.54

Density: 5.18

Melting point: 1594 ℃

Physical and chemical properties: Black or black red powder. Insoluble in water and alcohol, soluble in concentrated acids and hot strong acids.

Purpose

Used as a pigment for watercolor, oil paint, and ink. The paint industry is used to manufacture rust resistant coatings and other primers. Used in the construction industry for coloring artificial marble and cement floors. The electronic and telecommunications industry is used to manufacture magnetic steel and also as a cathode plate for alkaline dry batteries. Used in the machine manufacturing industry for steel inspection.

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