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Calcium oxide (formula: Ca O), commonly known as quicklime or burnt lime, is a widely used chemical compound. It is a white, caustic , alkaline , crystalline solid at room temperature . The broadly used term lime connotes calcium-containing inorganic compounds , in which carbonates , oxides , and hydroxides of calcium, silicon , magnesium ...
Only lump stone could be used, because the charge needed to "breathe" during firing. This also limited the size of kilns and explains why kilns were all much the same size. Above a certain diameter, the half-burned charge would be likely to collapse under its own weight, extinguishing the fire. So kilns always made 25–30 tonnes of lime in a ...
As the pathogens would be spread by the flies, scavenging animals or ground water - or other vectors, this is the true danger of mass graves. Quicklime and slaked lime both act as biocides, preventing/reducing the growth of maggots and pathogenic microorganisms. The bodies will still decompose, but in a slower, less dangerous fashion.
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Burning (calcination) of calcium carbonate in a lime kiln above 900 °C (1,650 °F) [4] converts it into the highly caustic material burnt lime, unslaked lime or quicklime (calcium oxide) and, through subsequent addition of water, into the less caustic (but still strongly alkaline) slaked lime or hydrated lime (calcium hydroxide, Ca(OH) 2), the ...
The honey packets discourse online raises an important question: Why do some young men feel a need to use honey packets in the first place, assuming they don't have a sexual health issue? "These ...
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The resulting substance, known as quicklime or lump-lime, was subsequently pulverized into a fine powder and combined with water in a process called "slaking." Through this procedure, a fundamental binding agent called "lime putty" was created and utilized for plastering purposes. The slaked lime, a dense and moist substance, would then be ...