- Tianqiao District, Jinan City, Shandong Province, China
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Soda lime (MF:CaHNaO₂, MW:96.07)is a white or grayish-white granular solid. It is a mixture of calcium oxide, sodium hydroxide and potassium hydroxide. It is strongly alkaline, highly hygroscopic, and readily absorbs carbon dioxide and moisture from air.
| Item | Specification |
| Melting Point | N/A |
| Boiling Point | N/A |
| Bulk density | 750 kg/m³ |
| Relative density | ~2.0–2.2 |
| PH | 13–14 |
Sodium lime is used in closed breathing systems (e.g., diving apparatus, anesthesia machines) to absorb exhaled CO₂
Applied in laboratory settings to remove carbon dioxide from gas streams
Sodium lime is used in industrial gas purification to eliminate acidic gases
Serves as a drying agent for neutral or basic gases
Employed in environmental protection for waste gas treatment
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