738 MINERALS YEARBOOIt, 1941

 China —In 1940 China produced an estimated 800 metric tons of white
arsenic and 400 tons of realgar, of which 46.8 tons and 35.7 tons, respectively,
were exported.
 Mexico.—Arsenic roasting and subliming plants at San Luis Potosi and
Torreon operated near peak capacity in 1941 Of 12,590 metric tons of arsenic
exported in 1941, 10,101 tons were destined to the United States, .1,706
to the United Kingdom, 532 to Argentina, and 251 to the Union of South Afric~i.
 Peru.—Calcium arsenate was imported from the United States to combat
the cotton boll weevil, and some arsenic was, received for the. preparation
of sheep dip. The Cerro de Pasco Copper Corporation has accumulated substantial
quantities of arsemcal residue and is considering the production of white
arsenic
 Spain —Arsemc and manufactured arsemcal compounds, hitherto more economically
available from other countries, are being produced in Spain The Fabrica de
Arsemco, Mineras de Arsemco, and the Sociedad Industrias Arsenicales Reunidas
are mining and treating mispickel ore from 13 pocket deposits in the northwestern
part of Spain. The ore contains 25 to 34 percent arsenic and is mined solely
for its arsenic content.6
 United Kingdom —Metallic arsenic is marketed by the Metallo Refining
Co. Ltd., and it enjoys a steady demand at £325 per long ton Early
in 1942 an association of importer-distributors was formed to handle all
sales of foreign white arsenic, which was quoted at £40 per ton, 99+
percent As20,, for lots of 20 tons or over, delivered Early in 1941 and in
the summer of the year quotations for refined white, in warehouse, were only
£30 and £33 lOs per ton
 Uruguay —Annual white arsenic consumption totals approximately 1,000
tons—for cattle and sheep dip, insecticides, and weed killer—which
are distributed by the Institute of Industrial Chemistry
and Department of Agriculture. -

BISMUTH

SUMMARY

 Although the Bureau of Mines is not at liberty to publish domestic statistics
on. production it can be reported that the bismuth output in 1941 surpassed
the record output of 1940, largely owing to the treatment of some accumulated
rich bismuth residues. Apparent consumption increased about 100 percent over
that in 1940. Army and Navy medical units and South American countries increased
their purchases of pharmaceuticals containing bismuth, and the aircraft,
munitions, machine-tool, building, and other industries consumed much larger
quantities of bismuth alloy. Despite the slight increase in production and
the doubling of consumption, domestic stocks rose substantially owing to
increased receipts of foreign bismuth. During the first 9 months of 1941,
imports more than doubled, and exports declined compared with the same period
of 1940. The Peruvian Trade Agreement, effective July 29, 1942, halved the
import duty on bismuth. Nominal quotations on bismuth remained steady at
$1.25 a pound. There was some variance in price of certain bismuth compounds.
Cortell, P., ArsenIc in Spain: Ion (Madrid), October i941; abs. Chem. Trade
lour. (London), vol. 110.
February 6, i942,~pp. i45-i46.