Characteristics of quicklime and hydrated lime Revision as of 17:10, 2 August 2022 by Mtrojan (talk | contribs)(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff) Characteristics of quicklime and hydrated lime

Characteristics of quicklime and hydrated lime
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Parameter	Quicklime	Hydrated lime
Formula	CaO	Ca(OH)2
Molecular weight	56.1	74.1
Physical state	White solid	White solid
Particulate size	Pulverized to lump	Powder, 200 to 400 mesh
Bulk density (lb/ft3)	55 to 75	35 to 50
Specific gravity (g/cm3)	3.2 to 3.4	2.3 to 2.4
Affinity for water	Reacts quickly to for Ca(OH)2 with heat of formation, 490 Btu/lb	Absorbs H2O and CO2 from air to form CaCO3
Solubility	Slightly, varies inversely with temperature	Slightly, varies inversely with temperature
Stability in bagged storage	In multiwalled bags, max 60 days	Up to 6 months, in dry tight bags
pH of saturated solution	12.4	12.4