Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
2007-4-17
pubmed:abstractText
An additive is not exclusively retardant or promoter for a crystallization system. The kinetic studies of calcium sulfate dihydrate (CSD) crystal growth demonstrated that borax played dual roles in the reaction, which accelerated CSD formations at the low concentration levels but inhibited the crystal growth at the high ones. In situ atomic force microscopy studies revealed that borax modulated the CSD crystallization via two different pathways: promoted the secondary nucleation to increase the step density on the growing crystal faces but simultaneously retarded the spread of these growth steps by the Langmuir adsorption. These two contradictory factors were incorporated in the crystallization, and their balance was regulated by the borax concentration. Both the macroscopic and microscopic experimental data nicely displayed the crystallization model of birth and spread that was able to account for the behaviors of borax in CSD formations.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0743-7463
pubmed:author
pubmed:issnType
Print
pubmed:day
24
pubmed:volume
23
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
5070-6
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Dual roles of borax in kinetics of calcium sulfate dihydrate formation.
pubmed:affiliation
Department of Chemistry and Research Center for Biomaterials and Biopathways, Zhejiang University, Hangzhou, Zhejiang 310027, China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't