Chromium Dioxide
Structural Formula Vector Image
Title: Chromium Dioxide
CAS Registry Number: 12018-01-8
Molecular Formula: CrO2
Molecular Weight: 83.99
Percent Composition: Cr 61.91%, O 38.10%
Literature References: Prepn: Wöhler, Ann. 111, 117 (1859); Thamer et al., J. Am. Chem. Soc. 79, 547 (1957); Swoboda et al., J. Appl. Phys. 32, Suppl. no. 3, 374 (1961); Arthur; Arthur, Ingraham, US 2959955; US 3117093 (1960, 1964 both to du Pont). Reviews: Hund, Farbe Lack 78, 11-16 (1972); Rollinson in Comprehensive Inorganic Chemistry vol 3, J. C. Bailar, Jr. et al., Eds. (Pergamon Press, Oxford, 1973) pp 689-690.
Properties: Black, ferromagnetic crystals; rutile structure. d 4.89. Metastable in air; various temperatures (250-500°) reported for decompn to Cr2O3.
Density: d 4.89
Use: In magnetic recording tapes; as catalyst.

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