Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
1. Basic Information
Name: Iron
Alias: Metallic iron, iron powder, iron flake
CAS No.: 7439-89-6
Molecular Formula: Fe1
Molecular Weight: 55.85
2. Physical and Chemical Properties
Physical Properties
- Appearance: Silvery gray metallic solid; fine iron powder appears black
- Odor: Odorless
- Solubility: Insoluble in water, neutral organic solvents; slowly dissolves in dilute acid to release hydrogen
- Melting Point: 1538 °C
- Boiling Point: 2862 °C
- Hygroscopicity: Dense iron blocks non-hygroscopic; fine iron powder easily absorbs moisture and oxidizes/rusts
- Conductivity: Good electrical and thermal conductivity, ferromagnetism at room temperature
Chemical Properties
- Molecular Structure: Monoatomic metal element, body-centered cubic crystal structure at normal temperature
- Oxidation & rusting: Reacts with oxygen and water vapor in air to form reddish-brown iron oxide rust; ultrafine iron powder oxidizes spontaneously in air
- Acid reaction: Reacts with dilute hydrochloric acid / dilute sulfuric acid to generate ferrous salt and hydrogen; passivated in concentrated nitric acid and concentrated sulfuric acid at room temperature
- High-temperature reduction: Strong reducing agent at high temperature, reduces metal oxides such as copper oxide and iron ore
- Alloy formation: Easy to form alloys with carbon, nickel, chromium, manganese (steel, stainless steel, alloy iron)
- Photostability: Stable to light, no light-induced decomposition
3. Main Application Fields
1. Metallurgy & Construction Industry (Core Application)
- Raw material for steel smelting, the most widely used metal in construction, bridges, mechanical equipment
- Cast iron parts, iron plates, steel bars, steel profiles for engineering manufacturing
2. Chemical & Electronic Raw Materials
- Reducing agent for organic synthesis, raw material for iron salts (ferrous sulfate, ferric chloride)
- Iron powder for magnetic materials, electromagnetic cores, electronic components
3. Water Treatment & Environmental Auxiliaries
- Zero-valent iron powder for wastewater heavy metal removal, nitrate degradation, groundwater remediation
- Oxygen scavenger for industrial circulating water pipeline anti-corrosion
4. Food, Feed & Laboratory Reagents
- Food-grade reduced iron powder as iron fortifier for flour, nutritional supplements
- Feed additive for livestock iron supplementation; analytical iron standard reagent
4. Quality Specification Table
| Test Item | Standard Index |
| CAS Number | 7439-89-6 |
| Molecular Formula | Fe1 |
| Appearance | Silver-gray solid / black fine powder |
| Iron Purity | Industrial iron ≥98.0%; reduced iron powder ≥99.0%; high-purity iron ≥99.99% |
| Total Impurity (C, Si, Mn, S, P) | ≤2.0% |
| Moisture | Fine powder ≤0.5% |
| Heavy Metals (Pb) | Food grade ≤10 ppm |
| Packaging | Iron block: steel pallet; iron powder: 25kg PE lined woven bag / fiber drum |
| Storage Condition | Sealed dry warehouse below 25 °C; isolated from humid air, strong oxidants and acids |
| Transportation Requirement | Fine iron powder belongs to easily oxidizable solid, moisture-proof sealed packaging, away from fire sources |
| Shelf Life | 24 months under fully sealed packaging |
Safety Warning
Fine iron dust irritates respiratory tract and eyes; long-term inhalation may cause pneumoconiosis. Wear dust mask and goggles during powder operation. Ultrafine iron powder is flammable and self-heating, keep away from open fire, static electricity and oxidants to prevent spontaneous combustion. Avoid contact with dilute acid to prevent hydrogen accumulation and explosion risk. Waste iron scraps can be recycled as metal resources; waste iron powder shall not be randomly dumped.
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