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A calcium oxalate phase stability and dissolution study
Descriptive
TitleInfo
Title
A calcium oxalate phase stability and dissolution study
Name
(type = personal)
NamePart
(type = family)
Aljuhani
NamePart
(type = given)
Nauf Saleh
NamePart
(type = date)
1987-
DisplayForm
Nauf Saleh Aljuhani
Role
RoleTerm
(authority = RULIB)
author
Name
(type = personal)
NamePart
(type = family)
Kumi
NamePart
(type = given)
George .
DisplayForm
George . Kumi
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
chair
Name
(type = corporate)
NamePart
Rutgers University
Role
RoleTerm
(authority = RULIB)
degree grantor
Name
(type = corporate)
NamePart
Camden Graduate School
Role
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(authority = RULIB)
school
TypeOfResource
Text
Genre
(authority = marcgt)
theses
OriginInfo
DateCreated
(qualifier = exact)
2017
DateOther
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(type = degree)
2017-05
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2017
Place
PlaceTerm
(type = code)
xx
Language
LanguageTerm
(authority = ISO639-2b);
(type = code)
eng
Abstract
(type = abstract)
The presence of calcium oxalate (CaOx) hydrate crystals, which have low solubility in water, is widespread in nature. These crystals cause undesirable effects in certain aspects of human life, and many of these problems are still unsolved due to the lack of necessary information about the crystallization and dissolution mechanisms of these crystals. To obtain more insight into the thermal stability of CaOx crystals, a comparative study of calcium oxalate monohydrate (COM) dendritic and calcium oxalate dihydrate (COD) bipyramidal crystals has been undertaken using a combination of Raman microscopy and thermal stage. Crystal structure transformations in these crystals with respect to various temperatures were determined. Experimental results indicate that COM is stable up to ~110 °C, and above this temperature the anhydrous calcium oxalate (COA) forms. This transformation is reversible since the COA crystals created convert back to the COM phase upon cooling to temperatures below this transition temperature. In contrast, the COD phase is stable up to 120 °C, and above this temperature COD dehydrates and transforms to COA. This is an irreversible transformation because dehydrated crystals converted to COM upon cooling. The dehydration process for COD alters the overall crystal habit, resulting in cracks and crystal splintering. To further an understanding about CaOx dissolution, an experimental protocol was also developed to study CaOx crystal dissolution using a microfluidic device. CaOx dissolution was investigated in the presence of various carboxylate-ion-bearing species at different solution pH values to demonstrate the capabilities of this device. In the pH range studied (4 – 10), solutions with molecular species containing multiple (more than three) carboxylate ions have a noticeably higher CaOx dissolution ability than molecular species with only a few (two or less) carboxylate ions.
Subject
(authority = RUETD)
Topic
Chemistry
Subject
(authority = ETD-LCSH)
Topic
Calcium oxalate
Subject
(authority = ETD-LCSH)
Topic
Dissolution (Chemistry)
RelatedItem
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TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier
(type = RULIB)
ETD
Identifier
ETD_8186
PhysicalDescription
Form
(authority = gmd)
electronic resource
InternetMediaType
application/pdf
InternetMediaType
text/xml
Extent
1 online resource (xiii, 81 p. : ill.)
Note
(type = degree)
M.S.
Note
(type = bibliography)
Includes bibliographical references
Note
(type = statement of responsibility)
by Nauf Saleh Aljuhani
RelatedItem
(type = host)
TitleInfo
Title
Camden Graduate School Electronic Theses and Dissertations
Identifier
(type = local)
rucore10005600001
Location
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(displayLabel = Rutgers, The State University of New Jersey)
NjNbRU
Identifier
(type = doi)
doi:10.7282/T3319ZMF
Genre
(authority = ExL-Esploro)
ETD graduate
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Rights
RightsDeclaration
(ID = rulibRdec0006)
The author owns the copyright to this work.
RightsHolder
(type = personal)
Name
FamilyName
Aljuhani
GivenName
Nauf
MiddleName
Saleh
Role
Copyright Holder
RightsEvent
Type
Permission or license
DateTime
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(qualifier = exact);
(point = start)
2017-05-03 21:17:34
AssociatedEntity
Name
Nauf Aljuhani
Role
Copyright holder
Affiliation
Rutgers University. Camden Graduate School
AssociatedObject
Type
License
Name
Author Agreement License
Detail
I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
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Technical
RULTechMD
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ETD
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windows xp
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1.4
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DateCreated
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2017-05-09T17:07:54
DateCreated
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2017-05-09T17:07:54
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