Iron Oxide Black
2. Molecular Formula: Fe3O4
3. Molecular Weight: 231.533 4. CAS:1317-61-9
Description
Iron Oxide Black, with a chemical composition of Fe₃O₄, is a common inorganic iron oxide black pigment, widely used in coloring systems in industrial production.
Features
Stable molecular structure
The chemical name of Iron Oxide Black is ferroferric oxide, with a molecular formula of Fe₃O₄ and a molar mass of 231.533. It contains a stable crystal structure composed of two iron ions, Fe²⁺ and Fe³⁺. At room temperature and pressure, this structure is not easy to decompose or change phases. It can still maintain a stable form under high temperature (melting point is about 1597℃) conditions. It is only easily oxidized to Fe₂O₃ in a humid environment. It has strong thermal stability.
Insolubility
Iron Oxide Black has obvious insolubility characteristics. It is insoluble in water, alkaline solutions and commonly used organic solvents (such as ethanol). At the same time, natural iron oxides hardly dissolve in acid solutions. This feature shows that after it is added to systems such as coatings, plastics, rubbers and building materials, it will not dissolve or react due to changes in the medium, and can maintain color stability and particle structure integrity for a long time.
High hiding power and good dispersibility
As an inorganic pigment, Iron Oxide Black has strong light absorption ability, can block visible light, and has excellent hiding power and tinting strength. The particle size of the pigment can be controlled at the micron level in industrial production. It has good dispersibility and is not easy to agglomerate. It can be evenly dispersed in a variety of dispersion media (such as water-based and solvent-based systems) to ensure uniform product color and consistent coating thickness.
High safety
Iron Oxide Black is not a hazardous chemical. Its molecular structure is stable, does not contain volatile components, is non-toxic and odorless, and does not contain heavy metal elements such as lead and cadmium. It meets industrial-grade environmental protection and safe transportation requirements. The conventional packaging of the product is polyethylene inner bag and composite plastic woven bag outer bag. The net weight of each bag is 25kg, which is suitable for batch transportation and stacking storage.
1. Chemical Name：Iron Oxide Black
2. Molecular Formula: Fe3O4
3. Molecular Weight: 231.533
4. CAS:1317-61-9
5. Character: Insoluble in organic solvents such as water, alkali solution and ethyl alcohol, natural iron oxide is insoluble in acid solution. It is easy to oxidize to iron oxide (Fe2O3) in the air under wet condition.
6. Usage: Used as pigments and polishes, also used in the manufacture of audio tapes and telecommunications equipment.
7. Packing: It is packed with polythene bag as the inner layer, and a compound plastic woven bag as the outer layer. The net weight of each bag is 25kg.
8. Storage and Transport: It should be stored in a dry and ventilative warehouse, kept away from water and moisture during transport, unloaded with care as to avoid being damaged. Furthermore, it must be stored separately from poisonous substances.
FAQ
Q: What is the chemical composition of Iron Oxide Black? Is it safe?
A: The main component is ferrous oxide-ferric oxide (Fe₃O₄), which is non-toxic and harmless, meets international safety and environmental standards, and can be used in a variety of industrial and consumer products.
Q: How is the weather resistance and light resistance of this product?
A: It has extremely strong light resistance and weather resistance, is not easy to fade or degrade in outdoor environments, and is suitable for long-term use of construction and infrastructure materials.
Q: Why is it suitable for colored concrete?
A: The black color is rich, the coloring power is strong, and the dispersion is uniform, which can improve the visual consistency of concrete products without affecting the strength or durability.
Q: Can it be applied to plastics and rubber?
A: It is suitable for a variety of thermoplastic and thermosetting plastics and synthetic rubber systems, with stable color and good dispersion, and does not affect the processing performance of the material.
Q: What are the advantages when used in metal anti-corrosion coatings?
A: Enhance the density, UV resistance and corrosion resistance of the coating, extend the service life of the coating, and improve the protection effect of the metal surface.
Q: Can it be used for ceramics and glass products?
A: It is suitable for high-temperature processes. After firing, the color is stable and does not fade. It is often used in ceramic tiles, architectural glass, ceramic glazes and other fields.
Q: Is it suitable for the cosmetics industry?
A: As a CI 77499 colorant, it is widely used in eye, lip and facial cosmetics. It has fine particles, good stability and meets the safety requirements of cosmetics.
Q: Is it magnetic? What are its industrial uses?
A: It has natural magnetism and can be used in products with specific magnetic requirements such as magnetic recording materials, copy powder, and electronic components.
Q: Is it environmentally friendly?
A: The product does not contain VOC and heavy metals. It has passed environmental standards such as REACH and RoHS and is suitable for the development of green building materials and environmentally friendly products.
Q: How is the thermal stability?
A: It has excellent thermal stability and can withstand high temperatures above 180°C. It does not decompose or discolor in most processing techniques.
Q: Is it stable in acid and alkali environments?
A: It is stable under weak acid or weak alkali conditions and is not easy to react; it is recommended to evaluate the specific use conditions under strong acid and strong alkali environments.
Q: How is the dispersion performance? Is it easy to settle?
A: The powder has a moderate particle size, and the oil absorption is suitable for the coating system. It has good stability after normal dispersion and is not easy to produce sedimentation or agglomeration.
Q: What are the applicable industries?
A: It is widely used in industries such as architectural coatings, concrete, plastic rubber, ceramic glass, printing ink, magnetic materials, cosmetics and automotive coatings.
Q: What precautions should be taken during storage?
A: It should be sealed and stored in a cool and dry environment, moisture-proof and sun-proof, and avoid high temperature or strong acid and alkali contact to maintain its performance stability and fluidity.
Hot Tags: iron oxide black, China iron oxide black manufacturers, suppliers, factory, Magnesium Oxide, Zinc Oxide, Ferrous Sulfate, , Iron Oxide Red, Zinc Lactate
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