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HYDRATED LIME CALCIUM HYDROXIDE
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Hydrated Lime Calcium Hydroxide Powder, commonly known as slaked lime, is an alkaline product made by mixing quicklime with water. It is used mainly in construction, water treatment, and agriculture, it helps neutralize acids in soil, treats wastewater, improves the strength of cement and mortar, removes toxins from flue gases, and aids in tanning hides. As a versatile industrial chemical, calcium hydroxide has the ability to adjust pH levels, react with acids, and precipitate unwanted compounds from solutions.
HYDRATED LIME CALCIUM HYDROXIDE
- Other name: Calcium Hydroxide, Slaked Lime, Lime Putty, Milk of Lime, Mason Lime
- Chemical Formula: Ca(OH)2
- Size: 200 – 325 mesh
- Manufacturer: Vietnam Technology Mineral JSC
- Hydrated lime is the product formed when quicklime (calcium oxide) is mixed or slaked with water
- The chemical reaction when mixing quicklime with water is called hydration or slaking: CaO + H2O → Ca(OH)2 + Heat. This is an exothermic reaction that produces calcium hydroxide (also known as slaked lime or hydrated lime) and a substantial amount of heat
- Hydrated lime is less reactive than quicklime but retains adhesive and plastic properties important for construction uses
- Advantages over Quicklime include being safer to handle, bulkier to transport, and having a longer shelf life
- Calcium hydroxide (Ca(OH)2) content – Minimum 85-90% is good, and over 90% is very high quality
- Fineness – Finely ground powder form is preferred over coarser textures. Higher surface area improves workability
- Moisture content – Below 10-12% moisture ensures good shelf life without deterioration
- Impurity levels – Less than 1-2% each of Magnesium, silica, alumina and iron impurities
- Consistency – Uniform properties batch to batch without detectable variation in fineness, moisture, etc
- Density – Higher dense hydrated lime puts a greater quantity of calcium hydroxide into a given volume
- Lime activity – Capacity to carbonate when mixed into concrete/mortar indicates stronger alkalinity
- Color – Pure white color without gray or off-tint indicates thorough hydration and purity
- Setting time – Typical setting within 2 weeks for lime putty or 1 month for powder indicates freshness
- Packaging – Airtight packaging helps prevent the absorption of atmospheric carbon dioxide over time
- The best hydrated lime comes from quicklime processed using efficient hydration methods, and consistent quality control, and is finely ground with minimal impurities for optimum performance in construction applications
Specification
| ITEMS | RESULT | ITEMS | RESULT |
| Calcium Hydroxide Ca(OH)2 | ≥93.00% | Potassium Oxide (K2O) | ≤0.03% |
| Iron Oxide (Fe2O3) | ≤0.05% | Sulfur (S) | ≤0.08% |
| Aluminum Oxide (Al2O3) | ≤0.2% | Color | White |
| Magnesium Oxide (MgO) | ≤1.5% | Moisture Content | 1% |
| Silicon Oxide (SiO2) | ≤0.50% | Size | 250-325 Mesh |
| Sodium Oxide (Na2O) | ≤0.01% | pH | 11-12 |
Packaging and Loading
| Bag size | Small Bag 25kg | Jumbo Bag 1.0MT |
| Bag material | PP + PE + Nylon + UV resistance |
| Accessories | Pallet + Wrapping Film + Strapping Belt |
| Loading | Up to 24MT/FCL 20ft | 28MT/FCL 40ft |
| Customized bag printing | >100 metric tons: Free <100 metric tons: 150 USD/color |
Application of Hydrated Lime Calcium Hydroxide Powder
| Water treatment/Wastewater treatment | Flue gas desulfurization | Metallurgy | Paper production | Soil treatment | Construction | Chemical manufacturing |
| Agriculture | Mining | Sugar refining | Swimming pools | Road construction | Glassmaking | Plaster, cement, mortar |
| Paint | Rubber | PCC Powder | Tanning | Dyeing and printing | Food production | Coating |
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( SHC GROUP is the REPUTED BRAND in mineral field from Vietnam )
