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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1975293Generated: October 27, 2026

Silica → Diltiazem

https://huagongshe.com/reaction/1975293

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSilicaHCID 24261—
ReactantDiltiazem HydrochlorideHCID 62920—
ReactantFumaric AcidHCID 444972—
ProductDiltiazemHCID 39186—

Reaction Steps

To an 80 cubic foot blender is charged 188 kg of diltiazem HCl, 94.0 kg of fumaric acid NF, 94 kg of talc, 2.8 kg of silicon dioxide, and an additional 188 kg of diltiazem HCl. The mixture is dry blended for 15 minutes and then milled through a 0.013 inch screen.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05286497
Source datasetuspto-grants-1994_02
ORD IDord-60aca50807ee408fae9b6de81ba0990e
Source noteuspto-grants-1994_02