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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1250806Generated: October 30, 2026

Ethylene Oxide → Ethanaminium, 2-hydroxy-N,N-bis(2-hydroxyethyl)-N-methyl-, hydroxide (1:1)

https://huagongshe.com/reaction/1250806

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthylene OxideHCID 6354—
ReactantN-MethyldiethanolamineHCID 7767—
ReactantEthanaminium, 2-hydroxy-N-(2-hydroxyethyl)-N,N-dimethyl-, hydroxideHCID 3017041—
SolventWaterHCID 962—
ProductEthanaminium, 2-hydroxy-N,N-bis(2-hydroxyethyl)-N-methyl-, hydroxide (1:1)HCID 118525—

Reaction Steps

The procedure of Example 1 for the reparation of bis-(2-hydroxyethyl) dimethyl ammonium hydroxide was followed, except that about 357 grams of methyl diethanolamine (MDEA) was used instead of DMEA, 489 grams of de-ionized water, and 115 grams of ethylene oxide were used. The product is a clear and colorless solution. However, after about four days of standing at room temperature, the product darkened somewhat.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06340559B1
Source datasetuspto-grants-2002_01
ORD IDord-6e252d3f4c8b4fe7b8a0d5cf1e01d665
Source noteuspto-grants-2002_01