Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 644
entage.Slightly acidulated water is used for the levelling fluid in thebottle y. The pipette d contains sodium hydroxide solution, con-taining 20 grams of NaOH in 100 c.c. of water for absorbing thecarbon dioxide. The wavy line e represents a piece of sheet ironto expose a large surface of… … Details of portable COi indicator. 630 A. C. FlELDNER AND G. W. JONES. [J.F.I. the sample. The glass tube protruding out of the top of the boxis connected with a heavy-walled rubber tube and a copper pipeto the exhaust pipe as shown in Fig. 7. Procedure in Making a Carbon Dioxide…
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