Chem. Also spiroile, spiroyl. [ad. F. spiroyle, irreg. f. mod.L. Spiræa SPIRÆA: see -YL.] (See quots.)

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1838.  T. Thomson, Chem. Org. Bodies, 614. This is what has induced M. Löwig to consider the acid or oil as a compound of 1 atom hydrogen with the compound base C12 H5 O4, to which he has given the name of spiroil.

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1841.  Brande, Chem. (ed. 5), 1251. Chloride of spiroile … Iodide of spiroile.

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1868.  Watts, Dict. Chem., Spiroyl, Löwig’s name for the radicle C7 H5 O2 (more generally called salicyl, or salicosyl), which may be supposed to exist in oil of spiræa.

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  Hence Spiroilate, Spiroilic a., Spiroilide, Spiroilous a.

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1849.  Craig, *Spiroilate, a compound of spiroilic acid and a base.

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1837.  R. D. Thomson, in Brit. Annual, 346. *Spiroilic acid.

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1841.  Brande, Chem. (ed. 5), 1251. A crystallized product … which Löwig terms spiroilic acid.

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1868.  Watts, Dict. Chem., Spiroylic acid, syn. with Salicylic Acid.

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1838.  T. Thomson, Chem. Org. Bodies, 615. A *spiroilide of potassium was formed. When this spiroilide is treated with muriatic acid [etc.].

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1841.  Brande, Chem. (ed. 5), 1251. Evolving hydrogen and producing a spiroilide of potassium.

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1868.  Watts, Dict. Chem., *Spiroylous acid, syn. with Salicylol.

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