Chromium(3+) trichloride → HCID 178519210, compound

HRID 989566

Reaction equation

HRID 989566 reaction equation
[Cl-].[Cr+3:2].[Cl-].[Cl-].[O:5]=[C:6]1[O:12][C@H:11]([C@H:13]([CH2:15][OH:16])[OH:14])[C:9]([OH:10])=[C:7]1[OH:8]>O>[O:5]=[C:6]1[O:12][C@H:11]([C@H:13]([CH2:15][OH:16])[OH:14])[C:9]([O-:10])=[C:7]1[OH:8].[Cr+3:2].[O:5]=[C:6]1[O:12][C@H:11]([C@H:13]([CH2:15][OH:16])[OH:14])[C:9]([O-:10])=[C:7]1[OH:8].[O:5]=[C:6]1[O:12][C@H:11]([C@H:13]([CH2:15][OH:16])[OH:14])[C:9]([O-:10])=[C:7]1[OH:8]

Participants

4

Reactant 2

HCID 6452300Chromium(3+) trichlorideHCID 54670067L-Ascorbic Acid2×

Product 1

HCID 178519210HCID 178519210, compound

Reagents, catalysts & solvents 1

HCID 962WaterSolvent2×

Conditions

Temperature
50 °C

Procedure

Half gram (1.85 mmole) of chromium chloride (CrCl3) was dissolved in 30 ml of deionized water to get a green solution. 1.0 g (5.5 mmole) of ascorbic acid (Asc) dissolved in 40 ml of deionized water, was added to the solution. The pH of the reaction mixture was adjusted to 4.5 (pK(Asc)4.2), and the reaction mixture was stirred for 3 hours at 50° C. to get a dark green solution. The solution was concentrated in vacuum and the large volume of ethanol 90% was added to get a green sediment. UV-VIS Spectrum for Cr-Asc showed two main absorbance peaks at 263 and 592 nm.

Workup

  1. customto get a green solution
  2. additionwas added to the solution
  3. customto get a dark green solution
  4. concentrationThe solution was concentrated in vacuum
  5. additionthe large volume of ethanol 90% was added
  6. customto get a green sediment

Sources & evidence

ORD record
ord-41998616a7dd415388b9f444902f1e40
Source dataset
uspto-grants-2002_10
Patent number
US06458351B2

Linked notes

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