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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1257482Generated: October 30, 2026

Salicylic Acid → Aspirin

https://huagongshe.com/reaction/1257482

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSalicylic AcidHCID 338—
ReactantAcetic AnhydrideHCID 7918—
ProductAspirinHCID 2244—

Reaction Steps

Reactor inlet stream 19 is in fluid communication with reactor 10. Reactor inlet stream 19 as introduced to reactor 10 comprises a molar excess of between about 2% and about 20% acetic anhydride compared to salicylic acid. Reactor 10 may preferably be any reactor configured for the esterification of reaction to produce acetyl salicyclic acid. Further, reactor 10 is preferably configured to distill acetyl salicylic acid. Reactor 10 may preferably be a continuous stirred tank reactor or a batch reactor, without limitation. Further, reactor 10 may preferably comprise a jacketed reactor. In certain embodiments, reactor 10 is configured as a holding tank for increased residence time, distillation, and/or agitation of reaction mixture.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08461377B2
Source datasetuspto-grants-2013_06
ORD IDord-67c6c6df753946089bb72c3d48ece67a
Source noteuspto-grants-2013_06