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CAS No 1308-38-9 , oxo(oxochromiooxy)chromium Search by region : Belgium

  • Name: oxo(oxochromiooxy)chromium
  • Synonyms: Chromium sesquioxide;Chromia; Dichromium trioxide; Chromium(III) oxide; Chromic oxide pigment; Green chromium oxide;oxo(oxochromiooxy)chromium; Chrome Green;
  • CAS Registry Number:
  • Melting Point: 2435 ºC
  • Flash Point: 3000ºC
  • Density: 5.21
  • Refractive index: 2.551
  • Safety Statements: Confirmed carcinogen with experimental tumorigenic data. Mutation data reported. Probably a severe eye, skin, and mucous membrane irritant. A powerful oxidizer. Reacts violently with CLF3. See also
  • Hazard Symbols: Toxic by ingestion and inhalation. TLV: 0.5 mg/m3.
  • HS Code: 28199090
  • Flash Point: 3000ºC
  • EINECS: 215-160-9
  • Molecular Weight: 151.9904
  • InchiKey: QDOXWKRWXJOMAK-UHFFFAOYSA-N
  • InChI: InChI=1S/2Cr.3O
  • Risk Statements: S24/25:Avoidcontactwithskinandeyes.;
  • Molecular Formula: Cr2O3
  • Molecular Structure:CAS No:1308-38-9 oxo(oxochromiooxy)chromium

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1308-38-9 Chromium(III)oxide, 99%

  • Chromium(III)oxide, 99%
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  • Tel: +32 9 340 49 49
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  • Address: Poststraat, 82 B-9160 Lokeren Belgium null,nullBelgium
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References of oxo(oxochromiooxy)chromium
Title: Chromium(III) Oxide
CAS Registry Number: 1308-38-9
CAS Name: Chromium oxide (Cr2O3)
Synonyms: anadonis green; chrome green; chrome ocher; chrome oxide green; chromia; chromic oxide; chromium sesquioxide; green cinnabar; green oxide of chromium; green rouge; leaf green; oil green; ultramarine green; C.I. Pigment Green 17; C.I. 77288
Molecular Formula: Cr2O3
Molecular Weight: 151.99
Percent Composition: Cr 68.42%, O 31.58%
Literature References: Prepd by reaction of sodium dichromate or chromate with sulfur: Copson in ACS Monograph Series no. 132, entitled "Chromium," vol. 1, M. J. Udy, Ed. (Reinhold, New York, 1956) pp 277-278. Review: Wiesburg, Paint Ind. Mag. 71(2), 11 (1956). See also Colour Index vol. 4 (3rd ed., 1971) p 4662. Use as catalyst: R. Uma, J. C. Kuriacose, Indian Chem. Manuf. 8, 11 (1970). Cytotoxic effects: V. Bianchi et al., Toxicology 17, 219 (1980).
Properties: Light to dark green, fine, hexagonal crystals. mp about 2435°. bp about 3000°. d25 5.22. Turns brown on heating but reverts to green color on cooling. Cryst Cr2O3 is extremely hard; will scratch quartz, topaz, zircon. Practically insol in water, alc, acetone. Slightly sol in acids, alkalies.
Melting point: mp about 2435°
Boiling point: bp about 3000°
Density: d25 5.22
CAUTION: Trivalent chromium may cause skin irritation: S. Fregert, H. Rorsman, Arch. Dermatol. 90, 4 (1964).
Use: In abrasives, refractory materials, electric semiconductors; as pigment, particularly in coloring glass; in alloys; printing fabrics and banknotes; as catalyst for organic and inorganic reactions.