Registration Dossier

Physical & Chemical properties

Nanomaterial pour density

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Administrative data

Endpoint:
nanomaterial pour density
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with generally accepted scientific standards and described in sufficient detail

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report Date:
2017

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: DIN 66137-2
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: nanoform, surface-treated
Remarks:
aqueous suspension of nanomaterial
Details on test material:
Spherical particles
Particle size distribution (primary particles; number-based): Min = 5 nm, D25 = 7 nm, D50 = 8 nm, D75 = 9 nm, Max = 61 nm
Volume specific surface area: 714 m2/cm3
Zeta potential: -33.5 mV

Data gathering

Instruments:
Mikro-Ultrapycnometer 1200eT

Results and discussion

Pour density
Key result
Mean:
5.383 g/cm³
St. dev.:
0.002

Applicant's summary and conclusion

Conclusions:
The density of nanosilver sample 1 determined by Helium pycnometry analysis is 5.38 g/cm3