A text-book of assaying

by C. Beringer; J. J. Beringer

[31] See also "The Assaying of Gold Bullion," by C. Whitehead and T. Ulke. Eng. and Mining Journal, New York, Feb. 12, 1898.

[32] Consult Percy's Metallurgy of Silver and Gold, p. 172; A.C. Claudet, Trans. Inst. Mining and Metallurgy, vol. vi. p. 29; G.M. Roberts Trans. Amer. Inst. Mining Engineers, Buffalo Meeting, 1898; J. and H.S. Pattinson, Journ. Soc. Chem. Industry, vol. xi. p. 321.

[33] Heycock and Neville, Journ. Chem. Soc., 1892, p. 907.

[34] G.M. Roberts.

[35] A.C. Claudet.

[36] "The Sampling of Argentiferous and Auriferous Copper," by A.R. Ledoux. Journ. Canadian Mining Institute, 1899.

[37] NaCNO + BaCl₂ + NaHO + H₂O = NH₃ + BaCO₃ + 2 NaCl.

[38] HCy + NaHO = NaCy + H₂O.

[39] 2KCN + AgNO₃ = KAg(CN)₂ + KNO₃.

[40] If it be desired to make a solution so that 100 c.c. shall be equivalent to 1 gram of sodium cyanide, then 18.085 grams of silver nitrate should be taken for each litre.