102 



FIXED OIL, ETC. 



shaken at intervals and finally set aside, 

 tions were made : 



The following observa- 



The following oils solidify : almond in 1^ hr., hazeliut in 1 hr., 

 olive oil in 1 hr., ground-nut in If hr,, sesam^ in 2J-hr., apricot 

 in If hr., beech in 6 hr., rape in 3 hr., colza in 3^ hr., cotton in 

 If hr. J the remainder do not solidify at all. 



§ 123. Behaviour to Sulphuric Acid. — Casselman^ observed the 

 following rise in temperature when 50 cc. of the oil were mixed 

 with 10 cc. of cone, sulphuric acid : 



Linseed from 14° to 132°- to 134°. 

 Sunflower „ „ 92°. 

 Poppy I. .. 92". 



Olive „ ;, 48". 



Almond „ „ 59°. 



With the oil from peony-seed Stahre and myself ^ observed a rise 

 to 68°, whilst almond oil rose to 48°. 



§ 124. Behaviour to Reagents mentioned in § 12.— Casselman has 

 made the following observations with the reagents mentioned in 

 §12: 



* Phai-m. Zeitschr. f. Eussland, 299, 1867 ; Zeitschr. f. anal. Chemie, vi. 479. 

 See also Chateau. 



'Archiv d. Pharm. [3], xiv. 412, 531, 1879 (Journ. Chem. Soc. xxxvi. 

 1043). 



