In petroleum refining, calcium hydroxide serves as a neutralizing agent for acidic gases and a desulfurization agent; Ca(OH)₂ reacts with acidic components such as SO₂ and H₂S to form stable calcium salts, effectively reducing sulfur content in flue gas and protecting downstream equipment from corrosion, while its high purity ensures reaction efficiency and product stability.
As a key raw material for calcium-based grease thickeners, high-purity calcium hydroxide reacts with fatty acids to form calcium soap, creating a stable colloidal structure that imparts excellent high-temperature resistance, water resistance, and mechanical stability to the grease; it is widely used for the lubrication of small and medium-sized motors, water pumps, automobiles, and metallurgical equipment.
It is used in the manufacture of cement and furnace linings, and serves as a binding material in the construction industry. By providing a Ca²⁺-rich, alkaline activation environment, it promotes the formation of calcium silicate hydrate (C-S-H) and improves both workability and early-stage strength; it is widely used in ready-mixed dry-mix mortars, high-whiteness plasters, and finishing mortars.
It is used as a flux in the metallurgical industry to lower the melting temperature of ore, facilitate the separation of impurities, and enhance the efficiency and purity of metal smelting; it also serves in the desulfurization of molten iron and slag conditioning.
| Product Name | FM100A | FM100 | FM300 | FM700 |
| Appearance | White powder | White powder | White powder | White powder |
| Baidu | ≥ 96 | ≥ 96 | ≥ 95 | - |
| Ca(OH)₂ content | ≥ 98% | ≥ 98% | ≥ 96% | ≥ 95% |
| MgO content | ≤ 0.5% | ≤ 0.5% | ≤ 0.5% | ≤ 0.5% |
| SiO₂ content | ≤ 0.03% | ≤ 0.03% | ≤ 0.03% | ≤ 0.03% |
| Al₂O₃ content | ≤ 0.02% | ≤ 0.02% | ≤ 0.02% | ≤ 0.02% |
| Fe₂O₃ content | ≤ 0.01% | ≤ 0.01% | ≤ 0.01% |
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| ≤ 0.1% |
| Mn₃O₄ content | ≤ 0.01% | ≤ 0.01% | ≤ 0.01% | ≤ 0.01% |
| SO₃ content | ≤ 0.01% | ≤ 0.01% | ≤ 0.01% | ≤ 0.01% |
| Moisture(105℃） | ≤ 1.0% | ≤ 1.0% | ≤ 1.0% | ≤ 1.0% |
| Heavy metal content (calculated as Pb) | ≤ 0.002% | ≤ 0.002% | ≤ 0.002% | ≤ 0.002% |
| 325-mesh sieve passing rate | ≥ 99.5% | ≥ 99.5% | ≥ 98% | ≥ 98.5% |