2L 



SALTS. 67. Muria. 



generally of a yellowifh-grey, apple-green or brownifh-black 

 colour: it dillblves in about three times its {height of water, 

 and when flovvly evaporated forms flexible fpicules connefted, 

 together like the web of a feather: fpecific gravity 1,420. 

 contains acid 42,75, ammonia 25,00. water 32,25. Kirwan. 



Barjtes, Fixed, decripitating in the fire, of an acrid aflringent 

 tafte, precipitating fulphate of barytes when dropt 

 into a weak watery folution of fulphuric acid. 



Muriated Barytes. Kirxvan mineral. 2. p. 34, 



Muriat of Barytes. Ihomfon chem. 2,. p. '3,0(). 



Found in feme mineral waters of Save(ien^ and when evaporated 

 forms 4 fided prifms whofe bafes are fquarr-s, or tables. It is 

 Jfonjetimes ufed in fcrofuious affedlions in dofcs-of from 5 to 

 to 20 drops ; but much precaution is neceilary in its exhibi- 

 tion, as, like all other barytic falts, it ispoifonous. Specific 

 gravity 2,8527. contains, in a ftate of cryllallization, acid 

 20. barytes 64. water 16. When dried it contains acid 

 23,8. barytes 76,2. iwricTz;;. 



itrontiana. Of a (harp penetrating tafle, when heated undergoing a 



watery fufion, and afterwards becoming a white pow- 

 der, precipitated from its watery folution by muriatic 

 acid. 



Muriat of Stroptian. Ihom/on chem, 2. p. 320. 



Perhaps never found naturally combined, but is prepared by 

 diilolving carbonate of ftrontian in muriatic acid: itscryftals 

 are long (lender 6 fided prifms which are foluble in two parts 

 of water, and alfo in alcohol, to whofe flame they give a 

 purple tinge: fpecific gravity 1,4402. contains acid 23,6. 

 flroiitian 36,4. water 40,0. Bergman, 



calcarea. Of a bitter tafle, fwelling and melting and lofing its water 

 of cryftaLization in heat, and after having been ex- 

 pofed to a violent heat lliining in the dark. 



Muriated Calx. Kir-ivan miner. 2. p. 35. 



Muriate of lime. Sch?neijier, mineral i» p* 2()'J, 



Muriat of lime. Thomfon chem. 2. p. 322. 



Found in mineral waters, but generally combined with com- 

 mon fea-falt, to which it gives a bitterifh tafte, and which it 

 caufes to attract moifture and melt fpeedily in the air: its 

 cryllals are 6-fided Ihiate prifms terminated by vtry fharp 

 pyramids; its earth is precipitated by fulphuric acid: fpe- 

 cific gravity 1,76, contains acid 31. lime 44. water 25. 

 Bergman. 



magiiesiata. Of a very bitter tafte, foluble in its own weight of water, 

 its fatu rated folution quickly forming a jelly on which 

 if hot water be poured fpongy mafTes are formed. 



