Data · dataset · 2025
Mechanism of Polyethylene Glycol Assisted Crystallization of Magnesium Carbonate trihydrate research
Listed in ScienceDB
To enhance the preparation of high-aspect-ratio magnesium carbonate trihydrate (MgCO₃·3H₂O) via polyethylene glycol (PEG)-assisted coprecipitation, MgCO₃·3H₂O was synthesized and characterized by XRD, SEM, TG-DSC, FTIR, and particle size analysis.
Description
The effect of PEG concentration on the aspect ratio was investigated, and in situ 2D imaging was employed to explore the growth mechanism over a 240 min reaction under the optimal PEG addition.
The results indicated that the aspect ratio decreased with increasing PEG content. At 0.2 wt% PEG, rod-like crystals with an aspect ratio of 11.53 and an average length of 46.69 μm were obtained. In situ imaging revealed initial nucleation at approximately 15 min, enabling real-time monitoring of crystal evolution.
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Crystals up to 167.24 μm in length were formed, with a Mg2+ conversion rate of about 91%. The transformation between MgCO₃·3H₂O and Mg₅(CO₃)₄(OH)₂·5H₂O via dissolution–recrystallization was observed during prolonged reaction. This study provides a novel analytical approach for investigating MgCO₃·3H₂O and offers a practical reference for synthesizing high-aspect-ratio crystals using PEG.
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Where it is published
- DOI doi.org/10.57760/sciencedb.j00265.00025 ↗
DOI / persistent id · from scidb cn
Catalogue records · 1
- OAI-PMH record scidb.cn/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=10.57760%2… ↗
metadata API · from scidb cn
Topics
- From keywords
- Earth & Environmental Science · Engineering · Humanities · Life Sciences · Social Science
- Inferred from text
- Imaging 75%
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ScienceDB | 10.57760/sciencedb.j00265.00025 | 11 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:engineering | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:humanities | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:social-science | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[modality].local:modality:imaging | enrichment · scidb cn | keyword-concept-rules@1.0.0 | title+description (75%) |
| description | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/description |
| license | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/rights |
| publication_date | source · scidb cn | connector:scidb_cn@1.0.0 | |
| title | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/title |