KAPHTALIN 317 



former, and naphtol results, which is further purified by 

 sublimation and recrystallization. 



Properties. — Colorless, or pale buff-colored, shining, 

 crystalline laminae, or a white, or j-ellowish- white, crystalline 

 powder ; having a faint phenol-like odor, and a sharp and 

 pungent but not persistent taste. Permanent in the air. 

 Soluble in about 1,000 parts of water, and in 0.75 parts of 

 alcohol ; also very soluble in ether, chloroform, or solutions 

 of caustic alkalies. 



Dose,—R., 3ii.-iii. (8.-12.); D., gr.i.-x. (.06-.6). 



Actions and Uses. — Naphtol is a powerful disinfectant, 

 antiseptic and parasiticide. It is a useful application exter- 

 nally in 10 per cent, ointment, for mange and ringworm. 



Internally it is employed to kill round and tape worms, 

 and as an antiseptic in intestinal fermentation. It should 

 be given in keratin coated pill (to avoid irritating the 

 stomach), or capsules, to dogs, and in ball to horses. 



Naphtalinum. Naphtalin. Cjo Hg. (U. S. P.) 



Synonym. — Naphtalene. 



Derivation.— h. hydrocarbon obtained from coal tar by 

 distillation between 356° F. and 482° F. The impure naph- 

 talin resulting is treated with sulphuric acid and sodium 

 hydroxide, and is further purified by distillation with steam, 

 and then by mixture with strong sulphuric acid, and finally 

 by redistillation. 



Proj^erties. — Colorless, shining, transparent laminae, 

 having a strong characteristic odor resembling that of coal 

 tar, and a burning aromatic taste ; slowly volatilized on 

 exposure to the air. Insoluble in water; soluble in 15 parts 

 of alcohol ; very soluble in ether, chloroform, carbon disul- 

 phide, and fixed and volatile oils. 



Z)ose.— H., 3ii.-iv. (8.-15.); D., gr.i.-xx. (.06-1.3). 



Actions and Uses. — Naphtalin, like other coal tar pro- 

 ducts, is an antiseptic and parasiticide. It may be used as 

 an antiseptic dressing powder upon wounds, or in 10 per 



