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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2120294Generated: October 31, 2026

Stearic Acid → Zinc Stearate

https://huagongshe.com/reaction/2120294

Reaction equation

Participants

RoleNameHCIDCharge
ReactantStearic AcidHCID 5281—
ReactantZinc OxideHCID 3007857—
CatalystPhosphoric AcidHCID 1004—
CatalystSodium Tetradecyl SulfateHCID 23665772—
SolventWaterHCID 962—
ProductZinc StearateHCID 1117898.8%

Reaction Conditions

Temperature65 °C

Reaction Steps

A molten stearic acid (29.5 grams, Hystrene 7018) was added gradually to a stirred mixture of zinc oxide (4.9 grams), phosphoric acid (0.1 gram), Tergitol 15-S-7 (0.2 gram), and water (66 grams) at 65° C. The reaction mixture was stirred at 60-70° C. for one hour, cooled to 25° C., filtered, and dried to afford 32.4 grams (98.8% yield) of zinc stearate white powder having 0.1% water, 14.3% ash, 0.44% by weight of free fatty acid, and a melting point of 126° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06689894B1
Source datasetuspto-grants-2004_02
ORD IDord-622301c17ca74b7f899582b4e40b0167
Source noteuspto-grants-2004_02