calcium hydroxide

noun

1. slaked lime.

calcium hydroxide

noun

1. a white crystalline slightly soluble alkali with many uses, esp in cement, water softening, and the neutralization of acid soils. Formula: Ca(OH) 2 Also calledlimeslaked limehydrated limecalcium hydratecaustic limelime hydrate

Word History and Origins

Origin of calcium hydroxide¹

First recorded in 1885–90

Example Sentences

A mixture simulating olivine, which released large amounts of silicate, spurred the growth of diatoms, which build their skeletons from silica; and a test using calcium hydroxide changed the timing of phytoplankton blooms and lowered the overall zooplankton biomass at the highest doses of alkalinity.

From Science Magazine

The added calcium hydroxide, or lime, raises the water’s pH and enables it to sequester more CO2 in the form of calcium bicarbonate or as carbonate deposited in the shells of sea creatures.

From Science Magazine

His creation allows air to pass through a warehouse filled with calcium hydroxide.

From Washington Post

It contains a pound of heirloom white cacahuazintle corn, just enough calcium hydroxide to nixtamalize it at home, Rancho Gordo oregano indio and ground Pasilla Mixe chile from Oaxaca.

From New York Times

The food scientists analyze samples of cane before giving approval to harvest, but they often must make adjustments to the juice, tweaking its pH with calcium hydroxide and monitoring variations in the ratios of sucrose, fructose and glucose, which bear on the panela’s color.

From New York Times