





















[MGILL] SECOND SERIES.—December, 1899. 57 
CHARGE Propucr OXYGEN 
Serial TE | ? Total Available | Combined | Residual 
Number ; Weight ACT Fey Os Chlorine in | Chlorine in | Chlorine in | Chlorine in Weed Required CONDITIONS OF THE EXPERIMENT REMARKS 
of the Material used Obloring added absorbers | absorbers | absorbers | comb’n tube by theory 
Experiment used SEA contained RES ee WRG 
== Grams Girne Grams Calculated as percentage on total chlorine con- litres 
tained in the charge 
1 V1 5 2°365 10 34:0 5 0°56 Porcelain tube 30 inches long; 18 inches heated in gas fur- 
nace. Charge distributed over 15 inches. Oxygen gas 
2 ¥i 5 2°365 10 68°0 28°0 40-0 32°0 2 0°56 Charge restricted to 6 inches, between asbestos plugs.. .. 
3 V = 2-365 | 10 trace 7 Ain ere sees Tube choked by accumula- 
: tion of Fe.Cl; on asbestos 
4 V 5 2°365 10 5-0 ASIN AAA eee == PR See Tube choked. [plugs. 
5 Vv | 5 2°365 | 10 617 40°7 21°0 38°3 15 0°56 Charge'distributed/asiin Le cena ; 
6 | V | 5 2365 10 44°4 5 15 0°56 Tube'rotated severalibimes 4. .,...2....-.-.s ee 
iz | V | 5 2°365 | 20 370 30°0 70 63°0 Moderate heat, and slow stream of oxygen .............. Heat too low. 
8 VI | 20 3°694 0 34°0 2:0 0°85 IMO GratevHeabi res memes eee cc Ci etre 
9 VI 20 3594 0 trace DA Used a glass flask instead of the combustion tube ; heat 
irene br Eee bee eee 
10 VI | 20 3° 594 0 | 20°0 2-0 0°85 Very gentle heat, to bare redness................. 
| | 
11 V | 5 2365 0 | 43°0 | 26°0 17:0 57:0 0°56 Charge placed at entrance end of tube..... ............ 33'7% of total chlorine was 
| | | sublimed as Fe Cl, into 
12 Vv 5 2°365 | 0 60°6 | 20°2 40°4 39°4 2:0 0°56 Like II— Used improved absorption apparatus.......... cooler part of tube. 
13 | V | 5 2°365 10 | 831 62:0 21-1 16-9 20 0°56 O_ esse) Charge placed at A B.| Best yield of chlorine. 
| | RÉ © Portion from B to C frst 
14 Vv | 5 2°365 | 10 | 86°3 60°0 26°3 13°7 2-0 0°56 Like 13, [strongly heated. Then to redness at AB. 
| | | 
15 | Vv | 5 2°365 10 58°9 Cal sito) 4 adresse ane de TDR 
16 Vv | 5 | 2°365 10 90°0 | 54°0 36°0 10°0 15 0°56 Like 13 and 14; but packed the tube from B to C with 
| | ShredsioL Porcelain et. RP Te ane 
17 VI | 20 3°594 0 715 48°4 23°1 28:5 15 0°85 Ohargelplaced ag in le 241: eee 










Nove.—From the equation 2 Fe Cl, + 3 O, = 2 Feo Oy + 4 Clo, it appears that 3 volumes oxygen are required to furnish 4 volumes chlorine, or the ratio by weight of oxygen to chlorine is 96 : 284 = 1: 3 nearly. 
1 For detailed description of these samples see p. 53. à 
