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Physical & Chemical properties

Nanomaterial specific surface area

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Administrative data

Endpoint:
nanomaterial specific surface area
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method

Data source

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

Materials and methods

Principles of method if other than guideline:
The specific surface area was not measured but calculated using the results of the density and size distribution measurements.

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

Results and discussion

Specific surface areaopen allclose all
Specific Surface Area:
28.2 m²/g
Specific Surface Area:
150 m²/cm³
Remarks on result:
other: Volume Specific Surface Area

Applicant's summary and conclusion

Conclusions:
The Volume Specific Surface Area of nanosilver Sample 2 is 150 m2/cm3.