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].[NH3:21]>O>[CH3:18][CH2:17][CH2:16][CH2:15][CH2:14][CH2:13][CH2:12][CH2:11]/[CH:10]=[CH:9]\[CH2:8][CH2:7][CH2:6][CH2:5][CH2:4][CH2:3][CH2:2][C:1]([OH:20])=[O:19].[NH3:21]Participants
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
Separately, a 200-ml capacity beaker was charged with 1.44 g of granular stearic acid, 2.08 ml of aqueous ammonia having a concentration of 0.736 mole/l and 50 ml of water, and the mixture was heated at 90° C. under violent agitation by a glass rod to completely emulsify stearic acid and form an ammonia soap. The so formed ammonia soap suspension was added to and sufficiently dispersed in the above-mentioned base slurry of tribasic lead sulfate, and the mixture was heated and aged at 65° to 70° C. for 60 minutes. The solid was recovered by filtration and the cake was dried overnight in a thermostat drier maintained at 90° C. and then pulverized by an atomizer to obtain a tribasic lead sulfate powder (Sample 2-1) having a very high whiteness.
Sources & evidence
- ORD record
- ord-d73054d831174fd3aa7e6a591fe6bc76
- Source dataset
- uspto-grants-1982_04
- Patent number
- US04324768
Linked notes
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