Hydrochloric Acid → Oleic Acid

HRID 1779886Notes

Reaction equation

HRID 1779886 reaction equation
[OH-].[Na+].[C:3]([O-:22])(=[O:21])[CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10]/[CH:11]=[CH:12]\[CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH3:20].[Na+].Cl>O.S([O-])([O-])(=O)=O.[Mn+2].S([O-])([O-])(=O)=O.[Zn+2]>[C:3]([OH:22])(=[O:21])[CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10]/[CH:11]=[CH:12]\[CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH3:20]

Participants

7

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 23665730Sodium Oleate

Product 1

HCID 445639Oleic Acid

Reagents, catalysts & solvents 3

HCID 24424Zinc SulfateCatalystHCID 24580Manganese SulfateCatalystHCID 962WaterSolvent

Conditions

Temperature
90 °C

Procedure

The fine magnetic particles are prepared by dissolving 0.1 mol of manganese sulfate, 0.4 mol of zinc sulfate and 0.5 mol of ferric sulfate in one liter of water, adding dropwise 6N sodium hydroxide to the aqueous solution while maintaining the temperature at 90° C. with stirring to reach a pH 11, whereby a colloid of Mn-Zn ferrite is formed. The liquid temperature is adjusted to 80° C., and 250 ml of a 10% sodium oleate solution is added to the mixture with stirring. After cooling the mixture to room temperature, aqueous 3N hydrochloric acid solution is added until a pH 6 is reached. Coagulated colloid particles are washed with water sufficiently and dried, thereby obtaining fine Mn-Zn ferrite particles coated with oleic acid.

Workup

  1. customThe fine magnetic particles are prepared
  2. customis formed
  3. customis adjusted to 80° C.
  4. stirringwith stirring
  5. temperatureAfter cooling the mixture to room temperature
  6. washCoagulated colloid particles are washed with water sufficiently
  7. customdried

Sources & evidence

ORD record
ord-028535c863724edd934b6ada7350c81b
Source dataset
uspto-grants-1997_05
Patent number
US05629274

Reaction notes

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