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Diss Factsheets

Physical & Chemical properties

Nanomaterial crystalline phase

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Administrative data

Endpoint:
nanomaterial crystalline phase
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: The study was regarded as reliable without restrictions. XRD is fully ISO standardized and all procedures and techniques were regarded to be compliant.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2012
Report date:
2012

Materials and methods

Test guideline
Qualifier:
no guideline followed
GLP compliance:
no
Type of method:
x-ray diffraction (XRD)
Details on methods and data evaluation:
A suitable amount of particles (~0.5g) was packed in a plastic sample holder and a glass slide used to flatten the surface. The crystallite phase was determined using a Bruker ASX-D8 X-Ray Diffractometer (XRD) using Cu K(alpha) radiation. The operation current and voltage was 40mA and 40kV respectively. The scan ranged from 5o to 85o with a step size of 0.02o and a scan speed of 0.40 second/step. The aperture slit size directing the x-ray source was 0.2mm.

Test material

Constituent 1
Chemical structure
Reference substance name:
Zinc oxide
EC Number:
215-222-5
EC Name:
Zinc oxide
Cas Number:
1314-13-2
Molecular formula:
ZnO
IUPAC Name:
oxozinc
Test material form:
solid: nanoform

Data gathering

Instruments:
Bruker ASX-D8 X-Ray Diffractometer (XRD) using Cu K(alpha) radiation

Results and discussion

Applicant's summary and conclusion

Conclusions:
XRD patterns for NM110, NM111, NM112 and NM113, indicating that the only detected phase was hexagonal wurtzite zincite
Executive summary:

CSIRO, 2012 investigated the crystallite phase of the nanomaterials. The crystalline phase was determined using a Bruker ASX-D8 XRD using Cu K(alpha) radiation. The operation current and voltage was 40 mA and 40 kV respectively. The scan ranged from 5° to 85° with a step size of 0.02° and a scan speed of 0.40 second/step. The aperture slit size directing the x-ray source was 0.2 mm. XRD patterns of the four ZnO samples are shown in the attached Figure and indicated that all ZnO nanomaterial samples were in a hexagonal wurtzite zincite crystalline phase.