1 Selle aati eRe Pi, wie eee Be 
MR hh Gay So te } 
oo gle 2 i ital Sa ae ae i 2 aaa a ps oe. 
Ret: ee ney 4350 
oO reddish; p. 218 to.2219; ee 1 180 to. 1 is laynihetic oil’)) or 41.472 to 1.182 
i ); tp 0° (eymthetic or sweet birch ois or veny Oey up to —1°30" 
BAGotE: 70 per cent. alcohol?) at! 950 with not more than a | Slight pin ddtiess: 
olic. solution is neutral: or slightly acid to moistened litmus paper. Ester 
not less than 98 Le cent.; pee feaction with, ferric chloride; tests for 
cect: potash solution must elt a clear, or sfidhely Biady, colourless or r faintly 
owish solution without the separation of any oily drops) and sor heavy metals®*). 
. =) The lower limit is ‘too high, it must read 1.177. pep? 2 ae a) 
Y? Sy) Of 70 percent. alcohol, 6 to-8 vols. are required for solution. 4 ; 
3 The WW. S:Ph. test excludes merely. the Presence, of. gepper and lead, admits, hftletore: the i iron content , 
ntly observed with wintergreen oil. ‘ 
é Since ete synthetic ester is a uniform body, we wish te, add ie refractive index at 20° : 1.535 to 1. 538. ; 
oS to 1.0204); vip +09: b. p. 148 to 1540, the fist and last portions of the 
llate have nearly the same specific gravity as the original oil. Allyl zsothiocyanate 
ent, not less than 92 per cent. hak oaia tan method ey means of ammoniacal silver 
Aes — account, it ranges between 1 527 and 1.531 at 20°, ; ike 
ag Oi of “Myristica (Nutmeg) (Olewm Myristice). — Colourless or pale yellow: , 
0.859 to 0.924; a#)+12 to + 30°); soluble in 3 vols. 90 percent., or the equal 
ume of 95 per cent. alcohol. On evaporating 3 Sms. of the oil on a water bath, 
101 ‘more than 0.06 gm. residue remains?). Nes 
Bay The lower limit is too high; oils distilled by ourselves from best material showed rotations down to 
args Compare Report October 1904, 65. fi 
2 “Oil of nutmeg volatilizes - “comparatively difficultly, so. that long posting 1S necessary, else even good 
ae too high values. — a \ eR 
\ 
250 
than + 94°; np» 1.4723 to 1.4737; ap of the first 10 per cent. is equal to or only 
4 er than that of the original oil*); poe of these first 10 per cent. not less 
Fon of tices Orange (Oleum Aurantii). — Yellow; ee 0.842 to 0.846; ap», not 
i ¥ i \ 
. ou of Bie, ae Menthe ipenticey 2” @ ipibicese a 0.996 to 0.9084); 
23 to — 33%); soluble in 4 vols. 70 per cent. alcohol, showing not more than slight 
s ence and no separation of oil globules; ester content (menthyl acetate) not less 
5 per cent.’) ; total oe not less moe 50 per cent.; test ek absence of dimethyl! 
va 
ae ‘ ' 
Pte: specific gravity should have more correctly been given as 0.895 to 0.910, corresponding to the 
S di25 0.900 to 0.915 found with American oils. A 
2) Especially with American oils, rotations down to —18° have been observed. 
1 a American oils, the ester content is frequently lower, down to 3 percent. . 
il of Pimenta (Oleum Pimentee). sa - Colourless?), yellow or reddish, becoming 
t with age. d@2 1. 018° to 1.048; foto to 127; soluble in 2 vols. 70 per cent. 
* 
© 4 
ep ae ' pA 
