TAR. PITCH AND OIL OF CADE 371 



Pix BuRGUNDiCA. Burgundy Pitch. (B. P.) 



The prepared, resinous exudation of Abies excelsa Poiret (nat. ord. Coniferse) . 



Synonym. — Poix blanche, poix de Bourgogne, Fr. ; Burgunder harz (pech), G. 



Habitat. — Southern Europe, mountainous regions. 



Properties. — Hard, yet taking gradually the form of the vessel in which it is 

 kept; brittle, with a shining, conchoidal fracture; opaque or translucent; reddish- 

 brown or yellowish-brown; odor agreeably terebinthinate ; taste aromatic, sweet- 

 ish, not bitter. It is almost entirely soluble in glacial acetic acid, or in boiling 

 alcohol, and partly soluble in cold alcohol. 



Constituents. — 1, resin; 2, a volatile oil (C,oHio). 



Dose.— a. & C, §i-iii, (30-90); Sh. & Sw., 3i-ii, (4-8); D., gr.xx-xl, (1.3-2.6). 



PREPARATION. 



Em'plastrvmi Picis. Pitch Plaster. (B. P.) 

 Terebinthina Canadensis. Canada Turpentine. (B. P.) 



A liquid oleoresin obtained from Abies balsamea (Linne), Miller (nat. ord. 

 Coniferae). 



Synonym. — Canada balsam, balsam of fir, balsamum Canadense, E.; baume 

 de Canada, Fr. ; Canadischer terpentin, G. 



Habitat. — Canada and N. United States; west to Minnesota, south on moun- 

 tains to Virginia. 



Properties. — A yellowish or faintly greenish, transparent, viscid liquid, of an 

 agreeable terebinthinate odor, and a bitterish, slightly acrid taste. When exposed 

 to the air it gradually dries, forming a transparent varnish. It is completely 

 soluble in alcohol, chloroform or benzol. 



Constituents. — 1, volatile oil, 20-30 per cent.; 2, resins; 3, and chiefly a and b 

 cannadinolic acid. 



Dose.—n. & C, §i-iii, (30-90) ; Sh. & Sw., 3i-ii, (4-8); D., gr.xx-xl, (1.3-2.6). 



Action and Uses of Burgundy Pitch and Canada Turpentine. 



Burgundy pitch is slightly stimulating to the skin and is used as a 

 mild counter-irritant (in plaster) in rheumatism, strains, swelling of 

 joints, and upon the chest. Burgundy pitch, Canada turpentine, crude 

 turpentine, Venice turpentine, Bordeaux turpentine and frankincense have 

 much the same action and uses as oil of turpentine internally. They are 

 administered in the same manner and in nearly identical doses, but are 

 less commonly employed than the latter. 



Resina. Rosin. (U. S. & B. P.) 



The residue left after distilling the volatile oil from the concrete oleoresin 

 obtained from Pinus palustris Miller and from other species of Plnus (Pinaceae). 



Synonym. — Colophony, resin, E.; colophonium, P. G. ; colophone, Fr.; kolo- 

 phonium, geigenharz, G. 



Properties. — Usually in sharp, angular, translucent, amber-colored fragments, 

 frequently covered with a yellow dust, brittle at the ordinary temperature; frac- 

 ture shiny and shallow-conchoidal ; odor and taste slightly terebinthinate. Spec, 

 gr. 1.07-1.09. Soluble in alcohol, ether, and fixed or volatile oils; also in solutions 

 of the fixed alkali hydroxides. 



Constituents. — Chiefly abietic acid anhydride (C«HocO,), 80-90 per cent. 



preparations. 

 Ceratwm Resince.' Resin Cerate. (U. S. P.) 

 Synonym. — Basilicon ointment. 

 Rosin, 350; yellow wax, 160; lard, 500. 



Emplastrum Elasticv/m. Rubber adhesive plaster. 

 Rubber, 20; petrolatum, 20; lead plaster, 960. (U. S. P. 1905.) 

 Emplastrum ResincB. Resin Plaster. (U. S. & B. P.) 

 Unguentum Resinw. (B. P.) 



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