Sodium Carbonate → Chromium(3+) carbonate (2/3)

HRID 2039358Notes

Reaction equation

HRID 2039358 reaction equation
[C:1](=[O:4])([O-:3])[O-:2].[Na+].[Na+].[Cl-].[Cr+3:8].[Cl-].[Cl-]>>[C:1](=[O:2])([O-:4])[O-:3].[Cr+3:8].[C:1](=[O:2])([O-:4])[O-:3].[C:1](=[O:2])([O-:4])[O-:3].[Cr+3:8]

Participants

3

Reactant 2

HCID 10340Sodium Carbonate3×HCID 6452300Chromium(3+) trichloride4×

Product 1

HCID 165489Chromium(3+) carbonate (2/3)

Procedure

500 g of a 10% aqueous solution of sodium carbonate and 86.4 g of a 35% aqueous solution of chromium chloride (manufactured by Nippon Chemical Industrial Co., Ltd.) were each placed in a container and prepared. Next, the aqueous solution of sodium carbonate and the aqueous solution of chromium chloride were adjusted to a reaction temperature of 20° C. Unlike Example 1, the aqueous solution of sodium carbonate was added to the aqueous solution of chromium chloride at a speed of 10 g/min, while the aqueous solution of chromium chloride was stirred. The produced precipitate was filtered and washed with water to obtain a chromium (III) carbonate cake. This chromium (III) carbonate cake was dried in a vacuum at 40° C. for 48 hours to obtain a blue-green chromium (III) carbonate powder. Measurement as in Example 1 was performed for this chromium (III) carbonate. The results are shown in the following Table 3. However, the solubility was measured only immediately after the production.

Workup

  1. customprepared
  2. customwere adjusted to a reaction temperature of 20° C
  3. filtrationThe produced precipitate was filtered
  4. washwashed with water

Sources & evidence

ORD record
ord-c7b119892cd1463aa7397ecf78324617
Source dataset
uspto-grants-2013_11
Patent number
US08580221B2

Reaction notes

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