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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1597721Generated: November 1, 2026

Water → Propylene Oxide

https://huagongshe.com/reaction/1597721

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant1,2-EpoxyoctadecaneHCID 23872—
ReactantMagnesium orthosilicateHCID 66225—
SolventGlycerolHCID 753—
ProductPropylene OxideHCID 6378—
Product1,2-EpoxyoctadecaneHCID 23872—

Reaction Conditions

Temperature120 °C

Reaction Steps

Thereafter, 1,2-epoxyoctadecane (385 parts) is added to the vessel with stirring and heating at 125° C. to 135° C. continued for another three hours or until at least 95% of the 1,2-epoxyoctadecane has reacted. The resulting product is treated with magnesium silicate (5% by weight) and water (1% by weight), heated at 120° C. for two hours, and filtered to remove residual potassium catalyst. Residual volatiles are removed by steam vacuum distillation (200°-205° C., 10 mm Hg vacuum, 3 parts water per part alkoxylated alcohol) to yield an alkoxylated alcohol containing an average of about 5 equivalents of reacted propylene oxide and 3 equivalents of reacted 1,2-epoxyoctadecane per equivalent of glycerin.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05736174
Source datasetuspto-grants-1998_04
ORD IDord-4ea9a706c371418ea407947cb7ae2e51
Source noteuspto-grants-1998_04