Iron oxide red CAS NO.1332-37-2

Iron Oxide Red, Iron Oxide Red, rust Red [1]

Chemical properties: [2]

Formula: Fe2O3

Molecular Weight: 159.69

CASNo. : 1332-37-2

EINECS no. : 215-570-8

Chemical parameter editing

Detailed description [3]

indicators

HO 01-04

HO 01.

130

190

In 103, 104

Mixed acid method

Sulfuric acid method

Nitric acid method

Mixed acid method

Iron content, Fe2O3 (105 ℃ drying) said,

% (m/m)

95

94

95

95

105 ℃ volatiles, % (m/m) or less

1.0

1.0

1.0

1.0

Water soluble, % (m/m) is less than or equal to

0.3

0.3

0.3

0.3

Water soluble oxide and salt,

C1 and SO1 say that % (m/m) is less than or equal to

0.2

0.2

0.2

0.2

Sieve residue (63um mesh), % (m/m) is less than or equal to

0.3

0.3

0.3

0.3

Water extract ph is less than ml

20

20

20

20

Ph value of water suspension

5 to 7

5 to 7

5 to 7

5 to 7

Oil absorption, g/100g

15 to 25

15 to 25

15 to 25

15 to 25

Lead chromate

negative

negative

negative

negative

The total amount of calcium, as CaO says, % (m/m) is less than or equal to

0.3

0.3

0.3

0.3

Color 1) 2) (compared to standard sample)

95

95

95

95

Relative colouring force 1) (with standard sample ratio), % is greater than

The approximate to micro

The approximate to micro

The approximate to micro

The approximate to micro

The presence of organic coloring matter

negative

negative

negative

negative

The color of light

The red

Light red -

purple

orange

Bordeaux red

Physical editing

There are natural and artificial two kinds.The natural name is xihong, which is basically pure iron oxide, which is red powder.Because of the different production methods and operating conditions, their crystal structure and physical properties are very different, and the color changes between orange and blue to violet light.The covering force and the coloring force are very large.Density of 5-5.25.It has excellent light resistance and high temperature resistance, and has the ability to withstand atmospheric influence, air pollution, and alkali resistance.Only when heated in concentrated acid will dissolve gradually.

Basic performance editing

Appearance: orange red to purple red trigonal crystal powder.There are two natural and synthetic types.The natural name is xihong, with a relative density of 55.25.Fineness 0.4 ~ 20um.Melting point 1565 (decomposition).When burning, oxygen can be released, which can be reduced to iron by hydrogen and - oxidized carbon.Insoluble in water, soluble in hydrochloric acid, sulfuric acid, slightly soluble in nitric acid and yeast.It has excellent light resistance, high temperature resistance, acid resistance, alkali resistance and rust resistance.Good dispersion, strong shading force and covering force, oil-free permeability and water permeability.Non-toxic.The maximum allowable concentration of air is 5mg/m3.

Main purpose editor

1, in the building materials industry is mainly used in colored cement, color cement tile, color cement tile, glazed tile and floor tile, color mortar, color asphalt concrete, terrazzo, Mosaic tiles, artificial marble and metope paint, etc.;

2. Used in various paint coloring and protective substances, including water-borne internal wall coatings and powder coatings;It can also be used in oil paints including epoxy, alkyd, amino, etc.It can also be used for toy paint, decorative lacquer, furniture paint, electrophoresis paint and enamel.Iron red primer has anti-rust function, can replace the high price red Dan lacquer, the nonferrous metal.

3. Used for coloring of plastic products, such as thermosetting plastic and thermoplastic plastics, and the color of rubber products, such as automobile inner tube, aircraft inner tube, bicycle inner tire, etc.

4. Used for advanced fine grinding materials, used in precision metal instruments, optical glass and other polishing.High purity is the main base material of powder metallurgy, which is used to smelt various magnetic alloys and other advanced alloy steel.Made from ferrous sulphate, iron oxide or iron oxide mixed with iron, or directly from a liquid medium.