Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

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
Guideline:
other: DIN 66137-2
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Silver
EC Number:
231-131-3
EC Name:
Silver
Cas Number:
7440-22-4
Molecular formula:
Ag
IUPAC Name:
Silver
Test material form:
solid: nanoform, surface-treated
Remarks:
paste of nanomaterial
Details on test material:
Spherical particles
Particle size distribution (primary particles; number-based): Min = 11 nm, D25 = 25 nm, D50 = 34 nm, D75 = 48 nm, Max = 161 nm
Volume specific surface area: 150 m2/cm3
Zeta potential: -23.3 mV

Data gathering

Instruments:
Mikro-Ultrapycnometer 1200eT

Results and discussion

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

Applicant's summary and conclusion

Conclusions:
The density of nanosilver sample 2 determined by Helium pycnometry analysis is 5.34 g/cm3