Chemical lecture experiments . save that the thermometer there shownis not used. H^A = ^ + CQ + jj^ Liter flask; thistle-tube; delivery-tube; gas washing-bottle;U-tube ; soda-lime ; H2C204 ; KOH. 12. By the action of sulphuric acid on potassium fer-rocyanide. — The complex reaction between sulphuric acidand potassium ferrocyanide furnishes a ready means ofobtaining pure carbon monoxide, and for preparing this gasin large quantities on the lecture-table this method is by farthe best. CARBON MONOXIDE 299 Forty-five grams of pulverized potassium ferrocyanide aremixed with 300 cc. of concentrated
Chemical lecture experiments . save that the thermometer there shownis not used. H^A = ^ + CQ + jj^ Liter flask; thistle-tube; delivery-tube; gas washing-bottle;U-tube ; soda-lime ; H2C204 ; KOH. 12. By the action of sulphuric acid on potassium fer-rocyanide. — The complex reaction between sulphuric acidand potassium ferrocyanide furnishes a ready means ofobtaining pure carbon monoxide, and for preparing this gasin large quantities on the lecture-table this method is by farthe best. CARBON MONOXIDE 299 Forty-five grams of pulverized potassium ferrocyanide aremixed with 300 cc. of concentrated sulphuric acid in a 2 The flask is closed with a three-holed rubber stop-per, carrying a thistle-tube extending below the liquid inthe flask, a glass elbow, and a thermometer, the bulb ofwhich is immersed in the liquid. Care should be takento have that portion of the thermometer reading between150° and 175° uncovered by the cork. The issuing gas isconducted through a gas washing-bottle containing potas- SJ Jb=a==^. K>= ^
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectchemist, bookyear1901
