Phenolphthalein ( feh-NOL(F)-thə-leen) is a chemical compound with the formula C20H14O4 and is often written as HIn, HPh, phph or simply Ph in shorthand notation. Phenolphthalein is often used as an indicator in acid–base titrations. For this application, it turns colorless in acidic solutions and pink in basic solutions. It belongs to the class of dyes known as phthalein dyes.
Phenolphthalein is slightly soluble in water and usually is dissolved in alcohols for use in experiments. It is a weak acid, which can lose H ions in solution. The nonionized phenolphthalein molecule is colorless and the double deprotonated phenolphthalein ion is fuchsia. Further loss of proton in higher pH occurs slowly and leads to a colorless form. Phenolphthalein ion in concentrated sulfuric acid is orange red due to sulfonation.
Paper
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Slang term for money.
Paper meaning & definition 1 of Paper.
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used to defeat rock in a game
Paper meaning & definition 2 of Paper.
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money derived from hustling, stealing,
prostitution or selling drugsPaper meaning & definition 3 of Paper.
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A shockproof, foldable, writable computer screen-like devise that doesnt need electricity.
Paper meaning & definition 4 of Paper.
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those little skinny things people used to write on before computers came along.
Paper meaning & definition 5 of Paper.
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- Money
- Rizler - What you role joints with
- What you buy some drugs, usually heroin, in
- Prison term for parol
Paper meaning & definition 6 of Paper.
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Cash
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A small amount of drugs, usually worth of heroin, sold in a fold of paper. See Paper Boy.
Paper meaning & definition 7 of Paper.
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- Money
- Prison slang for probation/parole.
Paper meaning & definition 8 of Paper.
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Material manufactured in thin sheets from the pulp of wood or other fibrous substances, used for writing, drawing, or printing on, or as wrapping material.
Paper meaning & definition 9 of Paper.
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