Sentence examples for anhydride from inspiring English sources
noun
Any compound formally derived from another (or from others) by the loss of a water molecule, especially acid anhydrides
Titan Wood has developed a technique for converting hydroxyl groups into acetyl groups (a different combination of atoms) by first drying the wood in a kiln and then treating it with a chemical called acetic anhydride.
A dozen caches of acetic anhydride, a chemical whose only plausible use is to turn opium into heroin, were also seized.
The amphoteric metals of groups VB (vanadium, niobium, and tantalum) and VIB (chromium, molybdenum, and tungsten) in the +5 and +6 oxidation states, respectively, form weak acids that readily condense (polymerize) to form anions containing several molecules of the acid anhydride.
Phthalic anhydride and phenol react to give phenolphthalein, which is similar in structure to fluorescein but lacks the oxygen linking two of the aryl rings.
Ortho-xylene is used mostly to produce phthalic anhydride, an important intermediate that leads principally to various coatings and plastics.
The acid is of considerable commercial importance as a raw material in the manufacture of esters of lower alcohols for use as flavouring agents; its anhydride is used to make cellulose butyrate, a useful plastic.
(This finally killed off Swedish chemist Jöns Jacob Berzelius's conception of organic acids as containing preformed anhydride plus water).
The acid anhydrides also can condense with other acids (e.g., phosphoric or silicic acids) to form heteropoly acids, which can form heteropoly salts.
Reagents may be acid chlorides (RCOC1, RSO2C1), anhydrides ((RCO 2O), or even esters (RCOOR′); the products are amides of the corresponding acids.
The organic anhydrides are used to introduce the acyl group (RCO) in organic synthesis.
Two oxides of nitrogen are acid anhydrides; that is, they react with water to form nitrogen-containing oxyacids.
