Chemistry and Physics. 249 
as Stromeyer supposed. e salt is insoluble in cold water, 
but rowan in boiling water with a red color. When a solution of 
chlorid of cobalt is acidulated with acetic acid and then a solution of 
nitrite “ potash added, a yellow precipitate of a brighter color — 
at e last mentioned salt is formed. If the quantity of .aceti 
acid is teil the solution gradually becomes Jess aeid and finally Soak 
alkaline. The first mentioned salt is then deposited, so that in analyses 
the substance weighed is usually a mixture of mere wee salts. The salt 
precipitated from an acid solution has the formula 7 9 2 6NO,+3HO0, 
CoO 
which may perhaps be written more correctly sKO 6NO,+2 aq. The 
HO 
2CoO 
corresponding ammonia salt has the formula 3NH,O ; 6NO,+2aq, 
O 
and consists of msn ism cubes slightly soluble in cold water with a 
yellow color. When a solu ition of chlorid of cobalt is heated with much 
cess of a mixture of ammonia and uitrite of potash, the solution a 
oxygen on standing and becomes darker, depositing finally bright breiinl 
ish-yellow leaf-like tins which are with difficulty soluble in cold 
water but dissolve pretty easily in hot water, and crystallize from the 
solution in the form of brilliant deep yellow flat needles or leaves. This 
compound has the formula 8NH, .Co,0,,3NO,, and appears to be the 
nitrite of the base 3NH, Bog; the. sulphite of which was described 
rife Kiinzel.— Journal fir prakt, Chemie, xcvii, 385. Ww. G. 
the synthesis of alcohols by means of chlorinated ethers. 
as has studied the action of zinc-ethyl upon the chlorinated ethers, 
and has obtained results of great interest closely connected with those of 
Frankland on the structure of the organic acids. By the action of zine- 
ethyl upon bichlor-ether, 6 €2 i Cl tS. Lieben and Bauer had already 
obtained tirade ae ‘eal _ oe 2H5 1 9, By the action of 
concentrated ey A acid upon _ body the chlorine is i formed 
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