barium carbonate

American  

noun

Chemistry.

1. a white, poisonous, water-insoluble powder, BaCO 3 , used chiefly in the manufacture of rodenticides, paints, and dyes.

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Etymology

Origin of barium carbonate

First recorded in 1870–75

Example Sentences

The gallium salts are precipitated by alkaline carbonates and by barium carbonate, but not by sulphuretted hydrogen unless in acetic acid solution.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 4 "G" to "Gaskell, Elizabeth" by Various

By mixing bone charcoal with barium carbonate in the proportions of 60 per cent of the former to 40 per cent of the latter a very reliable compound is obtained.

From The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel by Colvin, Fred H. (Fred Herbert)

In addition to the carburizing materials given, a mixture of 40 per cent of barium carbonate and 60 per cent charcoal gives much faster penetration than charcoal, bone or leather.

From The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel by Colvin, Fred H. (Fred Herbert)

If the soda alone gave a further precipitate of barium carbonate, this may, perhaps, be due to the presence of bicarbonates.

From A Text-book of Assaying: For the Use of Those Connected with Mines. by Beringer, Cornelius

As the sodium sulphate is soluble in water, and the barium carbonate insoluble, a separation between them is possible and the sulphur can be determined in the water-soluble portion.

From An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes by Talbot, Henry P.