Chemistry and Physics. 395 
VO vanadium monoxy4d, or van 72 
V.O,, vanadium rr a (Eeeciigs suboxya) © « Boh “4 
VO.,, vanadium dioxyd, 83°2 
Ve adium pentoxyd 3 ange, acid), “ 182°4 
e so called terchlorid of yaad ium, VCl,, (V=67°2), con- 
i Ox 
ree other solid oxychlorids exist, having he e composition 
Ist. VOCI,, vanadyl dichlorid, or vanadium oxydichlorid, 
2d. VOCI, vanadyl monochlorid, or vanadium oxy-mono- 
orid, 
es V,0,Cl, divanadyl monochlorid. 
4th. All the native vanadates are tribasic. 
5. Vanadium pentoxyd fused with sodium carbonate displaces 
three molecules of carbonic dioxyd, showing that normal or ortho- 
sodium vanadate is tribasic, the formula of this salt being Na, 
6. The so-called mono-vanadates are salts corresponding to the 
mono-basic phosphates, and may be termed meta-vanadates, thus, 
NaVO,, NH, VO,, Ba 2V0 3: The so-called bivanadates are anhy- 
dro-salts, similar in constitution to the anhydro-salts of chromic 
and boric acids. 
7. Vanadium nitrid has been prepared, which, on analysis, was 
shown be contain 51:2 parts by weight of vanadium to 14 parts of 
number calculated in the same way for V0, is 52°55. : 
— dof vanadium, VO=67°2, is a gray powder ees 
—— and i is ae Phe ed by passing the ed of vanadyl 
gen 
ne He agent. It Pol absorbs oxygen from 
air and beco mes chocolate-bro 
mx pode sesquio oxyd, ¥. 0,= 150-4, (Berzelius suboxyd) is ob- 
tained as a a powder by reducing vanadic A cageng A in hydro- 
heat. When exposed warm to the air it glows and 
passes to the host oxyd. At the ordinary sian heric ecune 
ature it slowly absorbs oxygen and gives the Hoard It is i 
uble in acids but may be obtained in solution as a green liquid b by 
the action on metallic inagnemsm upon a solution of vanadic in 
SNanadie dhe VO,=83'2 seg vanadic i of Berzelius) 
shining 
may be pr he form of b. allowing 
the sesquioxy soc chanicarion at ordinary temperatures. § So- 
cores 
