PREPARATION AND PROPERTIES OF CERIUM(IV) PERCHLORATE

Journal Article · Tue Mar 01 04:00:00 EST 1960 · Zhur. Neorg. Khim.

OSTI ID:4141097

Zinov'ev, A A; Shchirova, N A

Cerium (IV) perchlorate is readily formed by reaction of cerium hydroxide with perchloric acid, but this process is complicated by hydrolysis and partial reduction of cerium(IV). In addition, a considerable amount of water of crystallization is retained by the perchlorate salt. Even with the use of the monohydrate of perchloric acid (84.4% perchloric acid) instead of the dihydrate (72.6% perchloric acid), a considerable amount of hydrolysis and reduction of cerium(IV) perchlorate takes place. The reaction of anhydrous perchloric acid with cerium hydroxide results in the formation of perchloroceric acids, the compositions of which are very complicated. The crystallization of these compounds is very sluggish. A study of the thermal decomposition of both basic and acid salts of cerium(IV) perchlorate shows that perchloric acid is split out and evolved gradually from the reaction mixture. At the same time, evolution of oxygen occurs with a yield of 18.5 to 21%. The decomposition of the basic salt is accompanied by a considerable absorption of heat which is attributed to the evolution of the dihydrate of perchloric acid (boiling point 203 tained C). No perchlorate could be detected in the residues which were analyzed after thermal decomposition. The totul content of cerium in the residues varied from 71 to 75% of which 67 to 69% was Ce(IV). 15 references. (TTT)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-14-018952
• OSTI ID: 4141097
• Journal Information: Zhur. Neorg. Khim., Journal Name: Zhur. Neorg. Khim. Vol. Vol: 5
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

BIBLIOGRAPHY
CERIUM
CERIUM COMPLEXES
CERIUM COMPOUNDS
CERIUM HYDROXIDES
CHEMICAL REACTIONS
CHEMISTRY
CRYSTALLIZATION
DECOMPOSITION
HYDROLYSIS
OXYGEN
PERCHLORIC ACID
PRODUCTION
QUALITATIVE ANALYSIS
QUANTITY RATIO
REACTION KINETICS
REDUCTION
RESIDUES
TEMPERATURE
WATER