. Journal. 1905. V., page 799. [French Patents. Paper for Hangings. Decoration and other uses ; Process of Making . A. Fielding. Fr. Pat. , Jan. 21, 1905. Under Int. Conv., Jan. 30. 1904. See Eng. Pat. 2323 of 1904; this J., 1905, 40.—T. F. B. Silk; Manufacturing Artificial . P. Cazeneuve. Fr. Pat. 360,723, Jan. 12, 1905. V., page 799. XX.—FINE CHEMICALS, ALKALOIDS,ESSENCES, AND EXTRACTS. Mercury; Formates of . R. Yaret. Comptes rend., 1905, 140, 1641—1643. Yellow mercuric oxide dissolves readily in dilute formicacid, giving mercuric formate, which, however, slowlychang, - into mi renro
. Journal. 1905. V., page 799. [French Patents. Paper for Hangings. Decoration and other uses ; Process of Making . A. Fielding. Fr. Pat. , Jan. 21, 1905. Under Int. Conv., Jan. 30. 1904. See Eng. Pat. 2323 of 1904; this J., 1905, 40.—T. F. B. Silk; Manufacturing Artificial . P. Cazeneuve. Fr. Pat. 360,723, Jan. 12, 1905. V., page 799. XX.—FINE CHEMICALS, ALKALOIDS,ESSENCES, AND EXTRACTS. Mercury; Formates of . R. Yaret. Comptes rend., 1905, 140, 1641—1643. Yellow mercuric oxide dissolves readily in dilute formicacid, giving mercuric formate, which, however, slowlychang, - into mi renrons formate, with liberation of formicacid and carbon dioxide. The mercurous salt is easilyobtained in crystals. The author has determined themolecular heats of formation of these two salts in solution,from liquid mercury, diamond, and gaseous hydrogen andoxygen, as 1731 and 161 5 calories for the mercurousand mercuric salts respectively. The mercurous salt isthus the more stable of the two.—J. T. O W 20 SO 40 SO SO Temperatures Curve >o. 1—Strontium So. 2—Calcium No. 3—Barium No. 4—Copper No. .*,—Zinc >o. 6—Lead tartrate. The form of the solubility curves for copper ai I tartrates is probably due to the hydratcd sail of its water of crystallisation on heating, wil of a salt containing less or no water of en the solubilitv of which decreases with rise of teni|~ I Dimethyl Sulphate ; Formation of Esters with -Graebe. Annalen. 1905, 340. 244—249. Aim, >st theoretical yields of esters are obtained bythe solid potassium salt of the acid with a moof dimethyl sulphate to about 120 C. in an oil batraising the temperature to 200°—210* <.. the esteoff. Potassium benzoate and acetate in 11theoretical yields of the respective estehlorophthalic acid gave a yield of about 60 pelthe yield is the same if the acid is dmolecules of sodium hydroxide in a 10 jht -and then warmed with
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