60 
Book II. 
Division II. 
SALTS OF 
pouring arsenic acid into the acetite of zinc, or by mix 
ing the solution of the alkaline arseniats with the sul 
phat of zinc. It is a white powder, insoluble in water* 
Sp. 10, 11, and 12. 
By the same process may the tungstat, molybdat, 
and chromat of zinc be obtained. They also are in 
soluble in water : the first two are white, the last of an 
orange-red colour. 
Sp. 13. Acete of Zinc. 
ACETOUS ACID readily dissolves zinc, and yields by 
evaporation crystals of acetite of zinc, which were first 
mentioned by Glauber. This salt has a bitter metallic 
taste. Its crystals are rhomboidal or hexagonal plates, 
of a talky appearance. It is not altered by exposure to 
the air ; it is soluble in water. When thrown upon live 
coals, it burns with a blue flame. When distilled, it 
yields water, an inflammable liquid, and some oil, and 
towards the end of the process oxide of zinc sublimest. 
Sp. 14. Oxalat of Zinc. 
OXALIC ACID attacks zinc with a violent efferves 
cence, and a white powder soon subsides, which is 
oxalat of zinc. The same salt is precipitated when 
oxalic acid is dropt into the solution of sulphat, nitrat, 
or muriat of zinc. This salt is scarcely soluble in wa 
ter, unless thère be an excess of acid t. 
Sp. 15. Tartrite of Linc. 
TARTaROUS ACID attacks zinc with effervescence, 
* Scheele, i. 181. 1 Encycl. Metbod. Chim. i. 23. 
1 Bergm. i. 271.