Phase diagram of the system Li/sub 2/CrO/sub 4/-K/sub 2/CrO/sub 4/

Journal Article · Sat Dec 31 23:00:00 EST 1977 · J. Solid State Chem.; (United States)

DOI:https://doi.org/10.1016/0022-4596(78)90068-3· OSTI ID:5622645

Karnowsky, M M; Clark, R P; Biefeld, R M

The Li/sub 2/CrO/sub 4/-K/sub 2/CrO/sub 4/ phase diagram was determined by using differential thermal analyses with confirmation by high-temperature x-ray diffraction. The outstanding features are the formation of a eutectic composition of approx. 22.5 mole% K/sub 2/CrO between Li/sub 2/CrO/sub 4/ and the double salt, delta-Li/sub 2/CrO/sub 4/.K/sub 2/CrO/sub 4/, at 390/sup 0/C; the formation of a congruently melting double Li/sub 2/CrO/sub 4/ with three solid state allotropic forms, ..gamma.., delta, and epsilon, the d spacings and colors of which are given; and the formation of a eutectic composition at approx. 54 mole% K/sub 2/CrO/sub 4/ between ..cap alpha.. K/sub 2/CrO/sub 4/ and the double salt, ..gamma..-Li/sub 2/CrO/sub 4/.K/sub 2/CrO/sub 4/, at 525/sup 0/C. 2 figures, 2 tables.

• Research Organization: Sandia Labs., Albuquerque, NM
• OSTI ID: 5622645
• Journal Information: J. Solid State Chem.; (United States), Journal Name: J. Solid State Chem.; (United States) Vol. 23; ISSN JSSCB
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKALI METAL COMPOUNDS
ALLOTROPY
CHEMICAL ANALYSIS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHROMATES
CHROMIUM COMPOUNDS
COHERENT SCATTERING
DIAGRAMS
DIFFRACTION
DISPERSIONS
EUTECTICS
FLUIDS
GRAVIMETRIC ANALYSIS
HIGH TEMPERATURE
LIQUIDS
LITHIUM COMPOUNDS
MIXTURES
OXYGEN COMPOUNDS
PHASE DIAGRAMS
POTASSIUM COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
SCATTERING
SOLID SOLUTIONS
SOLUTIONS
TEMPERATURE DEPENDENCE
THERMAL ANALYSIS
THERMAL GRAVIMETRIC ANALYSIS
TRANSITION ELEMENT COMPOUNDS
VERY HIGH TEMPERATURE
X-RAY DIFFRACTION
YIELDS