Iron oxides are chemical compounds composed of iron and oxygen. widespread in nature, play an important role in many geological and biological processes, and are widely used by humans, e.g., as iron ores, pigments,catalysts, inthermite (see the diagram) and hemoglobin. Common rust is a form of iron(III) oxide.
1. Used in many types of paints, including anti-rust paint, water-soluble indoor/outdoor paints and oil-based
paints.
2. Used for dyeing construction materials, such as bricks, for concrete bricks, pavement, colorful tiles,
roofing tiles and man-made marble. Colors for ceramic body.
3. Used in paper industry, esp. rice paper.
4. Used for surface coloration of plastic epoxy floor, color for pitch.
5. Used as a more fade-resistant dye for plastics.
6. Pigment for Cosmetic.
7. Coloring Sugar-coat for medicine tablets.
8.others.
Anyị nwere ọtụtụ ụlọ ọrụ dị elu nke nwere nkwado miri emi, nke nwere ike inye gị ngwaahịa dị elu na ọnụ ahịa asọmpi. Anyị nwekwara ike inye ego maka nnukwu ịzụrụ ihe. Anyị na-akwado ọtụtụ ụlọ ọrụ na-ebuga ibu ndị ọkachamara, nwere ike ịnapụta ngwaahịa n'enweghị nsogbu na aka gị. Oge nnyefe bụ ihe dịka ụbọchị 3-20 mgbe nkwenye nke ịkwụ ụgwọ gasịrị.
Items |
Black |
Yellow |
Borwn |
Red |
types |
330 |
313 |
|
110,120,130,190 |
Contents(Fe2O3·H2O) % ≥ |
90 |
86 |
88 |
96 |
Oil Absorption ml/100g |
15-25 |
25-35 |
25-35 |
15-25 |
Water soluble salts% ≤ |
0.5 |
0.3 |
0.3 |
0.3 |
Res. on 325 mesh % ≤ |
0.5 |
0.3 |
0.5 |
0.3 |
Moisture % ≤ |
1.5 |
1.0 |
1.5 |
1.0 |
PH Value |
5-8 |
33-7 |
4-7 |
3.5-7 |
Ignition loss (1,000ºC,1/2 h) % ≤ |
5.0 |
14 |
--- |
1.0 |
Bulk density g/cm3 |
0.8-1.2 |
0.4-0.6 |
0.5-0.8 |
0.7-1.1 |
Specific gravity g/cm3 |
4.6 |
4.1 |
4.7 |
5.0 |
Tinting Strength(Compared with standard) % |
95-105 |
95-105 |
95-105 |
95-105 |
Color Difference E (Compared with standard) ≤ |
1.0 |
1.0
|
1.0
|
1.0
|
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