1918. | The Fifth Indian Science Congress. CXXXV 
amount of the crushed seed in the presence of dilute acetic acid and 
keeping the mixture well roe cat In most cases 80°90 per cent of the 
oil is hydrolysed within 48-96 hou The results obtained also confirm 
the conclusion drawn by other. sae the seeds when germinated are less 
efficient than when resting. 
Safflower ae as a drying oil— By H. H. Mann and N, V. 
KAnTIK 
The safflower seed has peculiar importance as being capable of 
growing ra much dry eg capa ya 2 growing little else. The seeds 
hus d 
contain on the average 50-8 per 49:2 per Sale of 
cl ay kernel, while the ee cd ae orton from 25:4 to 36°9 
per cent of oil from analyses of a large e number of Indian samples. The 
raat contains from 49:5 to 54:05 per cent of oil. 
samples of oil gave constants as ollie Ppa gravity a 
26°C. a 914; Bdtyso tel saves) reading at 40°C.—63°64; Re ichert- 
o 0°5; Saponification eS ne—l77 t 0 sie Acid vals shoe 
Meiss] number—0- 2 
to 2°6; Iodine se leila to 122; Hehner value— 
test —85°C. — 94°C. The mean molecular sear of the yogi acids was 
acid was only present in traces, palmitic acid being t 
; in oxyg 
much change in the constants of the oil ey heating ae 100°C, or at 186°C. 
At 300°C. the colour becomes ch darker in oxygen than in carbon 
inc 
and there is also a great increase in the acidity, which a terwards dis- 
appears, probably sie es volatilisation of the volatile ie produced. 
: value goes down till it is less than half its original value. 
300 mee a .. oe 
the oil becomes ‘almost a semi-solid’ m ss,—the roghan of the Indian 
oe ars. From the substantial identity Of the cenit of heasine salainee 
th in carbon dioxide and in oxygen we are entitled to conclude that 
. change i in safflower oil on he: saued is areal e ae nature of decomposi- 
ordain with some polymerisation, and is only minor extent due to 
ts en t © oxyzon absorbed by the oil heated to 100°C. “ye pat amounts 
of 3 “4 - Ars ae t when mixed with litharge and kept a mperature 
aff “ity This capacity to spine oxygen is ay ey slightly 
rey ty ae. ting to these tempera 
wh oe ihe required for drying rt ysieg ‘oils heated in carbon dioxide 
oa inixed with man anganese borate and spread in thin layers is ay eg 
ct 
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milar experiments, without a dri — - aint prepared with shee 
oil ied: re ead nae ihn bere fier ° ee 
results, and it was 
only, gave somewha ecreased the drying 
Case ca 
for 
+ Cannot at present be , but it may ius 
‘ng In the use of one oil as a snare oil which have cpa 
xplained. n the meantime, it was noticed that white le 
