HYDRATED LIME CALCIUM HYDROXIDE

 TECHMICOM JSC HYDRATED LIME CALCIUM HYDROXIDE POWDER | 200 MESH – 325 MESH

• Other name: Calcium Hydroxide, Slaked Lime, Lime Putty, Milk of Lime, Mason Lime
• Chemical Formula: Ca(OH)2
• 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