27081

Chromium(VI) oxide

puriss. p.a., ACS reagent, ≥99.0% (RT)

• Synonym(s): Chromic anhydride
• Empirical Formula (Hill Notation): CrO₃
• CAS Number: 1333-82-0
• Molecular Weight: 99.99
• EC Number: 215-607-8
• MDL number: MFCD00010952
• UNSPSC Code: 12352303
• PubChem Substance ID: 329752970

Properties

• grade: ACS reagent; puriss. p.a.
• assay: ≥99.0% (RT)
• form: powder, crystals or granules
• impurities: ≤0.005% total nitrogen (N)
• pH: <1 (20 °C, 100 g/L)
• mp: 196 °C (dec.) (lit.)
• anion traces: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• cation traces: Al: ≤50 mg/kg; Ba: ≤50 mg/kg; Ca: ≤100 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cu: ≤10 mg/kg; Fe: ≤100 mg/kg; K: ≤50 mg/kg; Mg: ≤5 mg/kg; Mn: ≤10 mg/kg; Na: ≤2000 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Zn: ≤5 mg/kg
• SMILES string: O=[Cr](=O)=O
• InChI: 1S/Cr.3O
• InChI key: WGLPBDUCMAPZCE-UHFFFAOYSA-N

Description

Other Notes

Oxidant used in the decomposition by solubilization or fusion

Safety Information

• pictograms: GHS03,GHS06,GHS08,GHS05,GHS09
• signalword: Danger
• hcodes: H271,H301 + H311,H314,H317,H330,H334,H335,H340,H350,H361f,H372,H410
• pcodes: P210 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1A - Eye Dam. 1 - Muta. 1B - Ox. Sol. 1 - Repr. 2 - Resp. Sens. 1 - Skin Corr. 1A - Skin Sens. 1 - STOT RE 1 Inhalation - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 5.1A - Strongly oxidizing hazardous materials
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable