Ammonium dichromate

• Catalog No.: 09712
• CAS Number: 7789-09-5
• M. F.: Cr2H8N2O7
• M. W.: 252.06492

SYNONYMS

• Title: 重铬酸铵
• IUPAC name: [(hydroxydioxochromio)oxy]chromiumoylol diamine
• IUPAC Traditional name: dichromic acid diamine
• Synonyms: 红矾铵; Ammonium bichromate

DATABASE IDS

• MDL Number: MFCD00010879
• EC Number: 232-143-1
• CAS Number: 7789-09-5

PROPERTIES

• Antion Traces: chloride (Cl-): ≤200 mg/kg
• Antion Traces: sulfate (SO42-): ≤200 mg/kg
• Cation Traces: Ca: ≤50 mg/kg
• Cation Traces: Cd: ≤5 mg/kg
• Cation Traces: Co: ≤20 mg/kg
• Cation Traces: Cu: ≤20 mg/kg
• Cation Traces: Fe: ≤20 mg/kg
• Cation Traces: K: ≤2000 mg/kg
• Cation Traces: Mg: ≤5 mg/kg
• Cation Traces: Mn: ≤5 mg/kg
• Cation Traces: Na: ≤50 mg/kg
• Cation Traces: Ni: ≤50 mg/kg
• Cation Traces: Pb: ≤50 mg/kg
• Cation Traces: Zn: ≤5 mg/kg
• Impurities: insoluble matter, passes filter test
• Linear Formula: (NH4)2Cr2O7
• Product Line: BioUltra
• Melting Point: 170 °C (dec.)(lit.)
• pH: 3.0-4.0 (25 °C, 1 M in H2O)
• Solubility: H2O: soluble1 M at 20 °C, clear, colorless
• Vapor Density: 8.7 (vs air)
• European Hazard Symbols: Explosive (E)
• European Hazard Symbols: Highly toxic (T+)
• European Hazard Symbols: Nature polluting (N)
• RID/ADR: UN 1439 5.1/PG 2
• Risk Statements: 45-46-60-61-2-8-21.1-25.1-26.1-34-42/43-48/23.1-50/53
• RTECS: HX7650000
• Safety Statements: 53.1-45-60-61
• Hazard Class: 5.1
• UN Number: 1439
• Packing Group: 2
• German water hazard class: 3