strontitic

[Eng. stront(ites); -itic.] Pertaining to strontia, or strontium. str on-ti-ŭm (or ti as shi), s. [Latinized from strontian (qv.).] Chemistry: A diad metallic element, symbol Sr, atomic weight 873, specific gravity 25418; discov. ered by Crawfurd in 1787, in the native carbonate of strontium, and obtained in the metallic state by Davy in 1808. It is now easily obtained by the electrolysis of the fused chloride, or by fusing the chloride with an alloy of sodium and lead. It has a yellow color like that of calcium, and acts similarly to it when heated in chlorine, oxygen, ., or when thrown on water. The salts of strontium color the blowpipe flame a carmine red. Strontium-carbonate= strontianite ; strontium sulphate celestite. strontium-bromide, s. Chem.: SrBr2. Prepared by heating a solution of the carbonate in hydrobromic acid. It separates from its aqueous solution in long needles containing three molecules of water, is slightly soluble in alcohol, easily in water. IMG:content-0441.png:[blocks in formation] Chemistry: SrO. Strontia. Prepared by heating strontium nitrate to redne . It is a grayish-white, porous ma , having an alkaline taste and reaction; specific gravity 3-4, infusible, and not volatile. When moistened with water it behaves like lime, becoming hot and crumbling to a powder. strop (1). s. [The older form of strap (q. v.).] A strap; specifically, a razor-strop. strop (2), s . [O. Fr. strope the loop whereby the oar of a skiff hangs to the thowle ( Cotgrave ); Fr. étrope , estrope =a strop, from Lat. stroppus , str up pus a band.] 1. Naut .: A rope spliced into a circular form to seize around a block for hanging it. 2. Rope - making : A rope with an eye at each end, used in twisting strands. strop, v. t. [STROP (1), s.] To sharpen with or on a strop.