Stearic Acid → Aluminum Stearate

HRID 1757022Notes

Reaction equation

HRID 1757022 reaction equation
[C:1]([OH:20])(=[O:19])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH3:18].[Al:21]>O.[Cl-].C([N+](CC)(CC)CC)C.CO>[C:1]([O-:20])(=[O:19])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH3:18].[Al+3:21].[C:1]([O-:20])(=[O:19])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH3:18].[C:1]([O-:20])(=[O:19])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH3:18]

Participants

5

Reactant 2

HCID 5281Stearic AcidHCID 5359268Aluminum2×

Product 1

HCID 12496Aluminum StearateYield 4.9%

Reagents, catalysts & solvents 2

HCID 16211205Tetraethylammonium chloride monohydrateCatalystHCID 887MethanolSolvent

Procedure

To a reaction flask was charged 12.0 g (0.0422 mole) of stearic acid, 220 g methanol and 0.40 g of tetraethylammonium chloride hydrate. Aluminum foil was used as the anode and a graphite rod as the cathode. After passing 2,780 coulombs of electricity, 0.56 g (0.021 mole) of aluminum was consumed. A greyish solid precipitated out during the reaction which was filtered, washed with methanol and dried. This gave a grey solid aluminum stearate containing 4.9% aluminum.

Workup

  1. customwas consumed
  2. customA greyish solid precipitated out during the reaction which
  3. filtrationwas filtered
  4. washwashed with methanol
  5. customdried

Sources & evidence

ORD record
ord-d66821a473de4e4f8537292201fec54d
Source dataset
uspto-grants-1995_08
Patent number
US05443698

Reaction notes

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