Silver

Nanomaterial specific surface area

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

Test material information

Constituent 1

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 area

Specific surface area 1

Specific Surface Area:

28.2 m²/g

Specific surface area 2

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.