Weight of water in the temperature of 605 

 the folution reddens that of litmus, precipi- 

 tates fulphur from the folution of liver of 

 fulphur, &c. the fpecific gravity of the dry 

 acid is 3,400. 3 Bergm. 127. 



7. This acid is precipitkble from its fdlti- 

 tion in water by the Prujfian alkali, and 

 alfo by tindiure of galls the precipitate is 

 reddifh brown. 



8. If this acid be diftilled with three times 

 its weight of fulphur, it re-produces molyb- 

 dena, 



9. The folution of this acid in water 

 unites to fixed alkalis, and forms cryfta- 

 liable falts ; fo it does with calcareous earth* 

 iriagnefia, and argill : thefe laft combinations 

 are difficultly foluble ; it adls alfo on the 

 bafe metals, and with them affumes a bluifh 

 colour. 



10. This folution precipitates filver, mer-i 

 cury, or lead from the nitrous acid, and lead 

 from the marine* but not mercuryi 



It alfo precipitates barytes from the nitrous 

 and marine acids, but no other earth. Mo- 

 lybdenous barofelenite is foluble in cold 

 water, 



Aa4 ii. This 



