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  • Iron Oxide Red
  • Iron Oxide Red

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Iron Oxide Red

Iron Oxide Red

Basic Information

CAS No.: 1309-37-1
Molecular Formula: Fe2O3
Molecular Weight: 159.69

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Product Details

Iron oxides are produced synthetically and consist essentially of anhydrous and/or hydrated iron oxides.  The range of hues includesyellows, reds, browns and blacks.  Food quality iron oxides are primarily distinguished from technical grades by the comparatively low levels of contamination by other metals.


Chemical Properties
PropertyValue
Melting point

1538°C

Density

5.24

Fp

>230 °F

Storage temp.

2-8°C

Solubility

It is soluble In Warm Hydrochloric Acid, Slightly Soluble in Sulfuric Acid.

Form

powder

Color

Red

Specific Gravity

5.1～5.2

PH

3.7±0.3

Water Solubility

INSOLUBLE

Crystal Structure

Corundum type

crystal system

Three sides

Merck

14,4028

Space group

R3c

Lattice constant

a/nmb/nmc/nmα/oβ/oγ/oV/nm30.502590.502591.373590901200.3005

Exposure limits

ACGIH: TWA 5 mg/m3OSHA: TWA 10 mg/m3; TWA 15 mg/m3; TWA 5 mg/m3NIOSH: IDLH 2500 mg/m3; TWA 5 mg/m3

Stability:

Stable.

CAS DataBase Reference

1309-37-1(CAS DataBase Reference)

NIST Chemistry Reference

Iron(iii) oxide(1309-37-1)

IARC

3 (Vol. 1, Sup 7) 1987

EPA Substance Registry System

Ferric oxide (1309-37-1)


Safety Information

PropertyValue
Hazard Codes

Xi

Risk Statements

36/37/38

Safety Statements

26

OEB

B

OEL

TWA: 5 mg/m3

WGK Germany

-

RTECS

NO7400000

TSCA

Yes

HS Code

28211000

Hazardous Substances Data

1309-37-1(Hazardous Substances Data)

IDLA

2,500 mg Fe/m3


Product Usage

Iron Oxide Red is a high-performance inorganic red pigment with excellent lightfastness, weather resistance, acid and alkali resistance, and high hiding power. In the construction industry, it is widely used for coloring colored cement, colored paving bricks, roof tiles, and wall coatings, imparting a durable red hue to materials without fading or powdering. In the coatings industry, it is used in anti-rust paints, marine paints, and industrial protective coatings, not only providing decorative color but also enhancing the anti-corrosion properties of the coating film. In plastics and rubber, it is used to color various products such as agricultural films, pipes, and shoe soles, offering good dispersibility and thermal stability. Additionally, it plays important roles in ceramic glazes, inks, cosmetics (e.g., eyeshadows, blushes), and environmentally friendly colored sands. Its advantages include safety, non-toxicity, low cost, and excellent chemical stability.

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Shipping And Transportation

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