




26 
Amount of carbon bisulphid in a saturated atmosphere at different temperatures. 
Pounds 
(avoirdupois) 
Temperature, per 1,000 
cubic feet of 
air. 
S20 R102.) 30.8 
ATOVIE (BOOS ost tl emer oe 43.9 
50° F. (10° C.) 53.5 
59° F. (15° C.) 64.6 
68° F. (20° C.) 77.6 
77° F. (25° C.) 92.4 
86° F. (30° C.) 109.3 
Q5O SHG Ne tee cnlc Steen c alee wale winepiaicale me's <ieinle Sule w atolslnials\wlabeiefete(oleraielal-\iole.slaets =l=\ alate, ele]—= ate 128.6 
LOSOTM(402 Co) one nie wiw.s ao mieten min sams blais wise eis mine «Meine isinie winle(= eines = ai sininis win a eimimninia mio inala is 150. 4 

In the following table are given the relative volumes of carbon bisulphid vapor 
and air in 100 volumes of an atmosphere saturated with vapor at the temperature 
named and at standard atmospheric pressure: 
Relative volumes of CS, vapor and air in 100 volumes of a saturated atmosphere (reduced 
to standard atmospheric pressure) at various temperatures. 





Temperature. b esestier bio ae 
BOOUR (OSG a) ete Ben BSE See ODES ene Soca) HOES HOP ACE CHOOCASORATCS - 3c 16.8 83.2 
CHT DE Oe) le ee Se Resear SouE seco noseebsseders sosac ce GamnSdocsdodhs PA lal 78.9 
EUS (ONG) ae seat ni oie wate late etetn erereis We ee mie olerm er ei tee le teia le ate inte lalntat a aitaetaiate sie terel= 26.1 73.9 
BUN OS UE Ch) ase ge ete er coe EeenE oSete nose ra ataoeasce apace moe nabosEcadeness 32.1 67.9 
GRO DT Oy ee eee ene re a ee ieee nate Oe pene inlet one Seeteeae semen aes 39.2 60.8 
7) ORE OP Rate er eon eee D Cans CSE nee Coane Canine CaO eras Appa adosSeEadscbes 47.5 52.5 
(G21 OS (GUS Cl) Sas Se oH Ua ARAM SS boneeare casa bbod: ostesenca sosopoaocencocasHecae YR? 42.8 
QAI Ss) Bes ee etal olaie le wie eleict ole mre ohalmlalaie felmim mint innlaie iwi -fm l= loin (a lel=tnlnleinimiateloiats \olnleiatm afol=i=l= 68. 4 31.6 
NOQAS TH (AD SHO) eree nee meee einle le rein =iatajoim nval=/=faleraieinin=\elel='=\n=ini= m\ninl= aie) =tetetelniale wlala latent 81.3 18.7 

INFLAMMABILITY AND EXPLOSIVENESS OF CARBON BISULPHID VAPOR WITH AIR. 
Three series of experiments (two with chemically pure carbon bisulphid, and one 
with ‘‘fuma’’ carbon bisulphid) were made to determine the inflammability of mix- 
tures of carbon bisulphid (CS,) vapor with air, and to determine the mixtures which 
are explosive and the violence of the explosion which takes place when these mix- 
tures are brought in contact with a gas flame. 
For the first series an atmosphere saturated with carbon bisulphid (CS,) vapor at 
about 72° F. was prepared. Portions of this saturated atmosphere were transferred 
to graduated tubes in which it was allowed to mix with varying amounts of air. 
Ten tubes were prepared in this way, the percentage of the saturated air in the mix- 
ture being increased from the first to the tenth. In column 1 of the following table 
is given the percentage of air saturated with CS, vapor at 72° F. used in the mixture 
in each tube. In column 2 of the table the quantity of carbon bisulphid (grams per 
liter) in each is stated. In column 3 of the table is given a statement in regard to 
the degree of inflammability or explosiveness of each of the mixtures: 
Inflammability of mixtures of CS, with the air. 
jn ee 
Grams * of 
Per cent of 
saturated 
air in mix- 
ture. 

liquid CS» 
per liter of 
the mix- 
ture. 
0. 068 
135 
. 270 
- 405 
- 040 
. 675 
. 810 
- 945 
1. 080 
1.350 

Inflammability. 

Barely inflammable. 
Inflammable; very slight explosion. 
Burns with slight explosion. 
Distinetly stronger explosion. 
Slight explosion. 
Mild explosion. 
Do. 
Burns almost quietly; slight explosion. 
Burns almost quietly; very slight explosion. 
Burns quietly. 
# One pound per 1,000 cubic feet equals 0.016 gram per liter. 
