Report
of Results: MVA6287
Imaging
of Magnesium Hydroxide
Prepared
for:
Aqua
Resources Corporation
Respectfully
Submitted by: ___________________________
Tim B.
Vander Wood, Ph.D.
Executive
Director
MVA
Scientific Consultants
15
April 2005
Report
of Results: MVA6287
Imaging
of Magnesium Hydroxide
Introduction
On 8
April we received a set of three samples of magnesium hydroxide with the
request that we image the particles for purposes of comparison of particle size
and morphology. The samples were assigned MVA Scientific Consultants sample
identification numbers as follows:
Sample Description MVA Number
AR3-1-05-1 94% H20 6% Mg(OH*) 6287Q0515
AR3-1-05-D Dry Cell 6287Q0516
AR3-1-05-2 40% H20 60% Mg(OH*) 6287Q0517
Imaging
was performed in our laboratory on 13 and 14 April 2005.
Methods
A small
portion of each sample was dispersed in deionized,
particle free water, and a droplet placed on a polished carbon planchette and allowed to dry. The dried samples were
placed in our JEOL JSM 6500F field emission scanning electron microscope where
images were obtained at magnifications up to 220,000x.
The images were digitally recorded and annotated in Adobe Photoshop.
Results
The
images obtained are attached as an appendix to this report. Comparison of the
images of samples AR3-1-05-1 and AR3-1-05-2 shows very different particle
morphologies between the two samples. Sample AR3-1-05-1 contains principally
flakes with diameters up to a few hundred nanometers
and thicknesses of only a few nanometers, often
arranged in larger particles with appearances similar to “desert rose”
concretions. In contrast, sample AR-3-1-05-2 consists of blocky, roughly equant particles with sizes down to tens of nanometers and occurring as conglomerates of micrometer
dimensions. Sample AR3-1-05-D appears to be formed from aggregates of the
flakes seen in sample AR3-1-05-1, gathered and formed into rounded particles of
many micrometers dimension by a drying liquid droplet.
APPENDIX
