|35 ARTIFICIAL CAMPHOR. 



Profeflbr Venturi. The only motion we obferved was the re 

 fult of the molecular attraction, which determined a great 

 number of" the fragments difperfed over the fur face of the 

 water to collect in one point. 

 Is foluble in It is wholly and readily diflblved in alcohol, from which 



alcohol. water feparates it unaltered. 



A£hon of dilute Nitric acid, at thirty degrees of Beaume's areometer, poured 

 nitric acid. on th j s new camphor, had no action on it, even after feveral 



days of contact; although the fame acid diihMves the common. 

 camphor with the greateft facility, becoming covered with an 

 oily ftralum, and water precipitates pure camphor from it. 

 Of concentrated Very concentrated nitric acid bad not, at fir ft, any action on 

 nitric acid. our camphor; hut after a few feconds the folution is 'effected, 



and at the (am e lime a difengagernent of nitrous gas is mani- 

 fefted: water rendered this folution very flighlly turbid. The 

 fame acid, on the contrary, ditTolved the camphor of the (hops 

 rapidly, diftufing white vapours. This folution took a beau- 

 tiful fire-red colour, and water feparated pure camphor from it 

 in flocks. 

 It is. not dif- Neither did acetic acid, which perfectly diflblves the com- 



fol.ved b y acet;c mon camphor, eflfedt the folution of this. By heat, it foftened 

 and feemed to diflblve ; but on cooling, it was wholly collected 

 on the furface of the liquid, with all its properties. 



We afterwards examined the liquor called the mother-water 

 of camphor. 

 Phyf.cal proper- This brown tranfparent liquor, lighter than water, heavier 



ties of the, { nan alcohol, fuming by contact of the air, of a peculiar odour, 



mother-water. r , ... , ..„ ., . ,. ,. . „ , 



Peculiar oil. iwam above a thick reddifn oil, the linall quantity of which 



obliged us to neglect the examination of it.* The tafte of this 



mother-waler was iharp; it did not mix with water, nor yield 



its acid to it. Agitated in this liquid, its particles remained 



difperfed for a long time, before they collected on its furface. 



Soluble in alcp- Alcohol and ether diflblved it completely; but the addition 



hoi and ether. of watef f eparatec l the m. 



Inflammable. Inflamed in a capfule, it burns without a refidue, difFufing a 



confiderable quantity of very odorours fmoke. 

 .AftioT of ful- Concentrated fulphuric acid poured into this liquor, bl.ick- 

 phuric acid, enet j ;^ anc j difengaged from it fome vapours, and a very 

 ftrong odour of gazeous muriatic acid. 



* We only afcertained its folubility in alcohol and fulphuric ether, 

 a»d its infolubility in water. 



A folution 



