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| Synonyms: Iron oxide black Iron(III) oxide Molecular Formula:Fe3O4 Molecular Weight: 231.533 Hazard Class:General cargo HS Code: 2821100000 Grade:Food grade 68% | |||||||||
1317-61-9
bosschemical
1317-61-9
Food Grade - Food Additives, Colorants
Food and Health Product Coloring: Primarily used for surface decoration of certain black foods, specialty candies, and baked goods (e.g., black macarons, squid ink flavor camouflage), pet food, and health supplement tablets.
Industrial Grade:
Construction and Building Materials Coloring: Used for overall coloring of colored cement, artificial marble, colored floor tiles, terrazzo, wear-resistant flooring, and asphalt.
Industrial Anti-corrosion Paints: Iron black has a dense crystalline structure and is commonly used in automotive primers, marine paints, container paints, and anti-corrosion paints for bridge steel structures.
High-Temperature Resistant Coatings: Iron black has good heat resistance and is commonly used for surface coating of heat-resistant equipment such as chimneys and boilers.
Plastics and Rubber Industry: Used for coloring thermoplastic plastics (such as polyethylene and polypropylene) and thermosetting plastics, such as automotive plastic parts, electrical housings, and industrial pipes. In rubber products (such as conveyor belts, tires, and rubber tracks), it acts as a black pigment, absorbing ultraviolet light and providing some protection against rubber aging.
ordinal | The examination iterm | Factory standard | The determination results |
1 | Content Fe3O4 | ≥98% | 99.2% |
2 | Sulphate SO4= | ≤0.10% | 0.09% |
3 | Insolubles in HCL | ≤0.2% | 0.1% |
4 | Soluble Matter in Water | ≤0.20% | 0.1% |
5 | Heavy metal(as Cu) | ≤0.05% | 0.04% |
6 | FeO | ≥21% | 23% |
7 | Cl- | ≤0.15% | 0.13% |
8 | SiO2 | ≤0.25% | 0.20% |
9 | P2O5 | ≤0.06% | 0.05% |
The inner lining is a polyethylene plastic bag, and the outer packaging is a composite plastic woven bag. Each bag weighs 25kg net.
