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Fluid glass floating on iron in the puddling furnace, produced by the vitrification of oxides and earths which are present. Floss hole.

h is produced by the reduction of fluoresceïn, and from which the latter may be formed by oxidation.

ly in ants, nettles, pine needles, etc., and produced artifically in many ways, as by the oxidation of methyl alcohol, by the reduction of carbonic acid or the destructive distillation of oxalic acid. It is the first member of the fatty acids in the paraffin series, and is homologous with acetic acid.…

The sudden brightening of a fused globule of gold or silver, when the last film of the oxide of lead or copper leaves its surface; -- also called blick. A phenomenon called, by the old chemists, fulguration. Ure.

A yellow, crystalline substance, (C4H3O)2.C2O2, obtained by the oxidation of furoin. [Written also furil.]

urnace bridge, Same as Bridge wall. See Bridge, n., 5. -- Furnace cadmiam or cadmia, the oxide of zinc which accumulates in the chimneys of furnaces smelting zinciferous ores. Raymond. -- Furnace hoist (Iron Manuf.), a lift for raising ore, coal, etc., to the mouth of a blast furnace.

A rare earth, regarded by some as an oxide of the supposed element gadolinium, by others as only a mixture of the oxides of yttrium, erbium, ytterbium, etc.

h dextrose, obtained by the decomposition of milk sugar, and also from certain gums. When oxidized it forms mucic acid. Called also lactose (though it is not lactose proper).

r wise saying. Artificial gem, an imitation of a gem, made of glass colored with metallic oxide. Cf. Paste, and Strass.

A term variously employed by early writers on art, though commonly designating the yellow oxide of lead, or massicot. Fairholt.

dal fracture, and made by fusing together sand or silica with lime, potash, soda, or lead oxide. It is used for window panes and mirrors, for articles of table and culinary use, for lenses, and various articles of ornament.

A white or gray tasteless powder, the oxide of the element glucinum; -- formerly called glucine.

Pertaining to, derived from, or containing, glucinum; as, glucinic oxide.

ls phenacite, chrysoberyl, beryl or emerald, euclase, and danalite. It was named from its oxide glucina, which was known long before the element was isolated. Symbol Gl. Atomic weight 9.1. Called also beryllium. [Formerly written also glucinium.]

e. Gluconic acid (Chem.), an organic acid, obtained as a colorless, sirupy liquid, by the oxidation of glucose; -- called also maltonic acid, and dextronic acid.

r derived from, glycerin. Glyceric acid (Chem.), an organic acid, obtained by the partial oxidation of glycerin, as a thick liquid. It is a hydroxyl derivative of propionic acid, and has both acid and alcoholic properties.

e wild grape (Ampelopsis quinquefolia), and produced artificially in many ways, as by the oxidation of glycol, -- whence its name. It is a sirupy, or white crystalline, substance, HO.CH2.CO2H, has the properties both of an alcohol and an acid, and is a type of the hydroxy acids; -- called also hydroxyacetic acid.…

A white, amorphous, deliquescent powder, (CO.H)2, obtained by the partial oxidation of glycol. It is a double aldehyde, between glycol and oxalic acid.

Decomposed rock, usually reddish or ferruginous (owing to oxidized pyrites), forming the upper part of a metallic vein.

A hydrous oxide of iron, occurring in prismatic crystals, also massive, with a fibrous, reniform, or stalactitic structure. The color varies from yellowish to blackish brown.