V O L U M E 23, NO. 2, F E B R U A R Y 1 9 5 1 addenda in the coordination sphere is indicated by the absorption peak at 620 mp in the spectral absorptancy curves for both the thiocyanate and selenocyanate mixed solvent solutions. Other addenda such as thiosulfate and cyanate also give bluc colors with cobaltous ions in mixed solvents. Finally, a wide variety of mixed solvents can be used to develop the blue color, tvnding to give credence t o the dehydration theory.
337 Engelder, Dunkelberger, and Shiller, ”Seniimicro Qualitative Analysis,” p. 159, Kew York, John \Tiley & Sons, 1936. Feigl, F., “Qualitative ilnalysis by Spot Tests,” 3rd ed., p. 112, New York, Elsevier Publishing Co., 1946. Feisl. F.., and Stern. H.. 2.aiinl. Chon.., 60.. 1-43 11921). . , Fernelius, IT. C., “Inorganic Syntheses,” Vol. 11, pp. 186-8, S e w York, h‘fcGraw-Hill Book Co., 1946. Hill, H., and Howell, 0. R., Phil. Mug.. 48, 833 (1924). International Critical Tahles, Sew Ilork, McGraw-Hill Book I ,
.
I
co.
Kiss, .i., and Csokan, P., 2. p h y s i k .
ACKNOWLEDGMENT
( y / ~ c v A186, ,, 2 3 9 4 7 (1940).
The authors acknowledge the aid of the Officcl of Suva1 Rrsrarch, under whow program this research &-asc o n d u c t d
Ibid., A188, 27-40 (1941). Korenman, I. hi., and Ashhel, E. AI.. Z a i u d s k o y a Lab., 10, 493 (1941 ). Mellor, J. W., “Comprehensive Treatise on Inorganic and Theoretical Chemistry,” 1-01. S I V , p. 516. Kew York. Long-
LITERATURE CITED
mans, Green and Co., 1935. Rossi, Luis, Rea. asoc. bioquim. coyentinu. 9 , S o . 33, 11-13
Akerloff, Gasta, J . A m . Chem. Soc., 54, 4123 (1932). Akerloff, Gasta, and Short, 0. A , , Ibid., 58, 1241 (1936). Ayres, G. H., and Glanville, R. V., - 4 s . t ~ CHEni., . 21, 930-34 (1949).
Bassett, H., and Croucher, H. H., J . Cheiri. SOC., 1930, 1784-819. Charlot, G., and Benzier, D., A m . chin!.anal., 25, 90-4 (1943). Danzier, J. L., J . d i n . Chem. Soc., 24, 578-80 (1902). Dwyer, F. P., Austmlinii Chem. Inst. J . a n d Proc., 3, 2 3 9 4 4 (1936).
Emeleus and Anderson, “hIodern Aspects of Inorganic Chemistry,” p. 144, Sew York. D. Van Sostrand Co., 1938.
(1943).
Ryazanov, I. P., A b h n d . S t u u t u t i i ~ , Sarrifor Cheni.. 1. 113 (1936).
Vdgel, H. JV., Ber., 8, 1533 (1875). Vosburgh, IT. C., and Cooper, G. H.,J . A n i . (‘hem
Soc.. 63,
437-42 (1941).
Test. P. 17..and Amis. E. S., IYD. ENG.CHEM.,.IN En., 18,
