Detail of "14307-33-6"

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CAS Number:
14307-33-6
Name:
Chromic acid (H2Cr2O7),calcium salt (1:1)
Molecular Structure:
Formula:
Ca. Cr2 H2 O7
Molecular Weight:
256.08
Synonyms:
Calciumdichromate (6CI); Calcium dichromate(VI) (7CI); Dichromic acid (H2Cr2O7),calcium salt (1:1) (8CI); Calcium chromate (CaCr2O7); Calcium dichromate(CaCr2O7); Dichromic(VI) acid, calcium salt (1:1)
EINECS:
238-243-1
Density:
g/cm³
Boiling Point:
°Cat760mmHg
Flash Point:
°C
Solubility:
Stability Toxicology Harmful if swallowed, inhaled or absorbed through the skin. Many chromium compounds are suspected to be carcinogens. Toxicity data (The mea
Risk Codes:
R20 R21 R22.
Safety:
Mutation data reported. When heated to decomposition it emits toxic vapors of CrO₃. Details

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Calcium bichromate

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Thermodynamics of phase equilibria and transformations in the system calcium oxide-chromium sesquioxide-chromium trioxide system: Thermodynamics of phase equilibria and transformations in the system calcium oxide-chromium sesquioxide-chromium trioxide system.Some chemicals with cas registry numbers like 14307-33-6 and 1305-78-8 are also used.. Kisil, Yu. K.; Sharova, N. G.; Ryabin, V. A. (Ural. Nauchno-Issled. Inst. Khim., Sverdlovsk, USSR). Izv. Akad. Nauk SSSR, Neorg. Mater., 23(1), 105-7 (Russian) 1987. CODEN: IVNMAW. ISSN: 0002-337X. DOCUMENT TYPE: Journal CA Section: 68 (Phase Equilibriums, Chemical Equilibriums, and Solutions) Section cross-reference(s): 69 The thermodn. approach developed by Protsyuk and Karapet'yants (1977) was used to study the CaO-Cr2O3-CrO3 system. The free energies of the reactions (1) 2CaO + 3CrO2 = CaCr2O4 + CaCrO4; (2) CaCr2O4 + 3CrO2 = CaCrO4 + 2Cr2O3; and (3) CaCr2O7 + Cr2O3 = CaCrO4 + 3CrCO2 were detd. The values are neg. The triangulation of the system shows that it is composed of seven basic three-phase equil. triangles. The phase diagram allows to est. the results of thermal decompn. of CaCr2O7 ? CaCrO4 + CrO2 ? CaCrO4 + 0.5Cr2O3 ? CaCr2O4. .