Calcium hydroxide
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Calcium hydroxide is an inorganic compound with the chemical formula Ca2. It is a colorless crystal or white powder and is produced when quicklime is mixed with water. Annually, approximately 125 mill
Calcium hydroxide
SEM image of fractured hardened cement paste, showing plates of calcium hydroxide and needles of ettringite (micron scale)
Dry untreated maize (left), and treated maize (right) after boiling in water with calcium hydroxide (15 ml, or 1 tbsp, lime for 500 g of corn) for 15 minutes
Closeup of cast of The Dying Gaul, showing distinctive hairstyle, supposedly derived from washing in limewater
Betel nut chewing
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Betel nut chewing, also called betel quid chewing or areca nut chewing, is a practice in which areca nuts are chewed together with slaked lime and betel leaves for their stimulant and narcotic effects
Calcium hydroxide
…calcium hydroxide – locally known by names including chuna, choona, apog or soon – is typically added to a bundle of areca nut and betel leaf called "paan" or buyo to keep the alkaloid stimulants chemically available to enter the bloodstream via sublingual absorption. Choona is a key ingredient in Petha…
Ghiyas al-Din eats a betel chew, illustration from the Nimatnama-i-Nasiruddin-Shahi. Malwa, c. 1500. British Library
The items used in a chewing session. The betel leaves are folded. Slices of the dry areca nut are on the upper left. Slices of the tender areca nut are on the upper right. The pouch on the right has tobacco, an optional element. On the lower right, there are dried cloves.
Betel leaves at a market in Mandalay, Myanmar
A statue of a hermit with an offering of betel quid from Thailand