Magnesium hydroxide
Applications: sewage treatment, heavy metal water treatment, environmental engineering treatment, power plant desulfurizer, soil conditioner, PH neutralizer, dyes, acid-base neutralization, seawater desalination
Brief description: Highly active magnesium hydroxide is mostly used in sewage treatment, power plant desulfurization, soil improvement, PH neutralization and other fields.
Physical characteristics: high purity, average particle size
Chemical characteristics: no heavy metals, high activity, fast reaction
Appearance characteristics: white fluffy powder
| Items | units | indicators |
| Appearance | White powder | |
| Mg(OH)2 % | %(W/W) | ≥98.0 |
| CaO | %(W/W) | ≤0.7 |
| Hydrochloric acid insoluble matter % | %(W/W) | ≤0.3 |
| Fe | %(W/W) | ≤0.4 |
| AL | %(W/W) | ≤0.1 |
| Mn | %(W/W) | ≤0.1 |
| Loss on ignition | %(W/W) | ≥30 |
| Moisture | %(W/W) | ≤0.5 |
| Whiteness | %(W/W) | ≥90 |
| Particle size | Mesh | 100-150 |

Application: flame retardant for plastics and rubber products, filler, sewage treatment, heavy metal water treatment, environmental engineering treatment, desulfurization agent for power plants, soil conditioner, PH neutralizer, dye, acid-base neutralization, seawater desalination
Packaging: 25kg per bag or 1000kg per bag, white woven bag


Industrial-grade magnesium hydroxide, a white powder and weakly alkaline inorganic magnesium compound. Halogen-free and low-smoke, it absorbs heat upon thermal decomposition to suppress combustion. Common powders are widely used for neutralizing acidic wastewater, flue gas desulfurization, heavy metal removal, and preparing magnesium oxide; modified ultrafine activated grades serve as environmentally friendly, halogen-free flame-retardant fillers in rubber, plastics, wires, and cables.
| MG(OH)2 CERTIFICATE OF ANALYSIS | |||||
| Magnesium hydroxide |
Items | Unit | Standard | Executed Standard | |
| Mg(oh)2% | ≥ | 98.0 | HG/T 3607-2007 | ||
| CaO% | ≤ | 0.7 | |||
| Hydrochloric acid insoluble matter% |
≤ | 0.3 | |||
| Fe% | ≤ | 0.4 | |||
| AL% | 드 | 0.1 | |||
| Mn% | 드 | 0.1 | |||
| Loss on ignition % | ≥ | 30 | |||
| Whiteness | ≥ | 90 | |||
| Moisture % | ≤ | 0.5 | |||
| Particle(Mesh) | 100-150 | ||||
| Appearance | White powder | ||||
1. Environmental water treatment: neutralization of acidic wastewater, precipitation of heavy metals, and phosphorus removal from sewage;
2. Flue gas desulfurization: desulfurization of flue gas from boilers and incinerators;
3. Halogen-free flame retardancy: modified ultrafine products used as flame-retardant fillers for wires and cables, plastics, rubber, and fire-resistant coatings;
4. Chemical raw materials: calcination to produce magnesium oxide and synthesis of various magnesium salts;
5. Filler for fire-resistant boards and conditioner for acidic soil.
1. Halogen-free, low-smoke, and eco-friendly flame retardant
2. High thermal stability; suitable for high-temperature rubber and plastic processing
3. Mild alkalinity adjustment with controllable pH; generates low sludge volume
4. Versatile application across multiple scenarios, including wastewater desulfurization and flame-retardant filling
5. Customizable particle sizes and surface-modified specifications
Question 1: Are you a manufacturer?
A1:Yes, we are a professional manufacturer of magnesium oxide and magnesium hydroxide based in Weifang City, Shandong Province, China.
Question 2: What about product samples?
A2: We can provide free samples of up to 2 kg (excluding shipping costs).
Question 3: What is the packaging for the goods?
A3: 20kg/25kg woven bags, ton bags (bulk bags), or customized packaging. Magnesium hydroxide slurry is packaged in IBC barrel.
Question 4: When is delivery scheduled?
A4: We typically ship goods within 3-15 days of receiving customer payment.
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