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An oxide containing one atom of oxygen in each molecule; as, barium monoxide.

e; now, only that the element has a higher valence than in other similar compounds; thus, barium peroxide is the highest oxide of barium; while nitrogen and manganese peroxides, so-called, are not the highest oxides of those elements.

o called in distinction from the contractor's temporary way. -- Permanent white (Chem.), barium sulphate (heavy spar), used as a white pigment or paint, in distinction from white lead, which tarnishes and darkens from the formation of the sulphide.

ike phosphorus, as certain phosphorescent bodies. Bologna phosphorus (Chem.), sulphide of barium, which shines in the dark after exposure to light; -- so called because this property was discovered by a resident of Bologna. The term is sometimes applied to other compounds having similar properties. -- Metallic phospho…

ende. Its compounds color flames carmine and give a characteristic spectrum. It resembles barium chemically. Radium preparations are remarkable for maintaining themselves at a higher temperature than their surroundings, and for their radiations, which are of three kinds: alpha rays, beta rays, and gamma rays (see these…

und of saccharose, or any similar carbohydrate, with such bases as the oxides of calcium, barium, or lead; a sucrate.

ubricant. -- Solar phosphori (Physics), certain substances, as the diamond, siulphide of barium (Bolognese or Bologna phosphorus), calcium sulphide, etc., which become phosphorescent, and shine in the dark, after exposure to sunlight or other intense light. -- Solar plexus (Anat.), a nervous plexus situated in the do…

he ordinary test for sulphuric acid is the production of a white insoluble precipitate of barium sulphate by means of some soluble barium salt. Test act (Eng. Law), an act of the English Parliament prescribing a form of oath and declaration against transubstantiation, which all officers, civil and military, were former…

Barium carbonate occurring in white or gray six-sided twin crystals, and also in columnar or granular masses.