[(hydroxydioxochromio)oxy]chromiumoylol diamine

• ChemBase ID: 149168
• Molecular Formular: Cr2H8N2O7
• Molecular Mass: 252.06492
• Monoisotopic Mass: 251.91416561
• SMILES: N.N.O[Cr](=O)(=O)O[Cr](=O)(=O)O
• Canonical SMILES: O[Cr](=O)(=O)O[Cr](=O)(=O)O.N.N
• InChI: InChI=1S/2Cr.2H3N.2H2O.5O/h;;2*1H3;2*1H2;;;;;/q2*+1;;;;;;;;;/p-2
• InChIKey: XAQCJVGGJJFLPP-UHFFFAOYSA-L

NAMES AND DATABASE IDS

Names

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

Database IDs

• CAS Number: 7789-09-5
• EC Number: 232-143-1
• MDL Number: MFCD00010879
• PubChem SID: 24868535; 162243336; 24846395; 24865123
• PubChem CID: 16211154

CALCULATED PROPERTIES

• Acid pKa: -2.30103
• H Acceptors: 6
• H Donor: 2
• LogD (pH = 5.5): -8.234395
• LogD (pH = 7.4): -8.2344
• Log P: -3.7068
• Molar Refractivity: 12.251 cm^3
• Polarizability: 11.788091 Å^3
• Polar Surface Area: 117.97 Å^2
• Rotatable Bonds: 2
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Solubility: H2O: soluble1 M at 20 °C, clear, colorless
• Apperance: crystalline; powder
• Melting Point: 170 °C (dec.)(lit.)
• Vapor Density: 8.7 (vs air)
• pH: 3.0-4.0 (25 °C, 1 M in H2O); 3.0-4.0 (25 °C, 50 mg/mL in H2O)

Safety Information

• RTECS: HX7650000
• European Hazard Symbols: Explosive (E); Nature polluting (N); Highly toxic (T+)
• UN Number: 1439
• German water hazard class: 3
• Hazard Class: 5.1
• Packing Group: 2
• Risk Statements: 45-46-60-61-2-8-21.1-25.1-26.1-34-42/43-48/23.1-50/53; 45-46-60-61-2-8-21-25-26-34-42/43-48/23-50/53
• Safety Statements: 53.1-45-60-61; 53-45-60-61
• GHS Pictograms: GHS03; GHS05; GHS06; GHS08; GHS09
• GHS Signal Word: Danger
• GHS Hazard statements: H272-H301-H312-H314-H317-H330-H334-H340-H350-H360FD-H372-H410
• GHS Precautionary statements: P201-P220-P260-P273-P280-P284
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P2 (EN 143) respirator cartridges, type P3 (EN 143) respirator cartridges; Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
• RID/ADR: UN 1439 5.1/PG 2

Product Information

• Purity: ≥97.0%; ≥97.0% (RT); ≥98.5%; ≥99.5%; 99%; 99.999% trace metals basis
• Grade: ACS reagent; purum p.a.; ReagentPlus®; SAJ first grade; technical
• Impurities: ≤0.005% insolubles; insoluble matter, passes filter test
• Cation Traces: Ca: ≤0.002%; Ca: ≤50 mg/kg; Cd: ≤5 mg/kg; Cd: ≤50 mg/kg; Co: ≤20 mg/kg; Co: ≤50 mg/kg; Cu: ≤20 mg/kg; Cu: ≤50 mg/kg; Fe: ≤0.002%; Fe: ≤20 mg/kg; Fe: ≤50 mg/kg; K: ≤2000 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Na: ≤0.005%; Na: ≤50 mg/kg; Na: ≤500 mg/kg; Ni: ≤50 mg/kg; Pb: ≤50 mg/kg; Zn: ≤5 mg/kg; Zn: ≤50 mg/kg
• Antion Traces: chloride (Cl-): ≤0.005%; chloride (Cl-): ≤200 mg/kg; chloride (Cl-): ≤500 mg/kg; sulfate (SO42-): ≤0.01%; sulfate (SO42-): ≤200 mg/kg; sulfate (SO42-): ≤500 mg/kg
• Loss on Drying: ≤3% loss on drying; ≤3.0% loss on drying; 0.5-3% loss on drying, 105 °C, 4 h
• Quality: phlegmatized with 0,5-3 % water
• Product Line: BioUltra
• Linear Formula: (NH4)2Cr2O7

DETAILS

Sigma Aldrich - 450138

Packaging
25 g in poly bottle

Sigma Aldrich - 402826

Packaging
100, 500 g in poly bottle

Sigma Aldrich - 224812

Packaging
500 g in poly bottle
Legal Information
ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC