Registration Dossier

Administrative data

Endpoint:
nanomaterial pour density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
03/2015
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:
2015
Report date:
2015

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Real-time instruments and off-line Transmission Electron Microscopy (TEM) analysis
Deviations:
not applicable
Principles of method if other than guideline:
There is no guideline for this test.
GLP compliance:
no
Details on methods and data evaluation:
PLACEHOLDER: CLARIFY WITH PAT

Test material

Constituent 1
Chemical structure
Reference substance name:
Silicic acid, lithium magnesium sodium salt
EC Number:
258-476-2
EC Name:
Silicic acid, lithium magnesium sodium salt
Cas Number:
53320-86-8
Molecular formula:
Na0.7+ [(Si8Mg5.5Li0.3) O20(OH)4]0.7-
IUPAC Name:
Silicic acid, lithium magnesium sodium salt
Test material form:
solid: particulate/powder
Specific details on test material used for the study:
PLACEHOLDER: THE STUDY COVERS BOTH LAPONITE TYPE 1 AND LAPONITE TYPE 2.

Data gathering

Instruments:
- Transmission Electron Microscopy (TEM)

- P-trak and Aerotrak instruments
- Scanning Mobility Particle Sizer (SMPS)
- Electrical Low Pressure Impactor (ELPI+) for the measurement of particle number concentration and size distribution
- marple cascade impactors for gravimetric analysis (for mass-based size distribution);
- additional samplers for TEM.

Results and discussion

Applicant's summary and conclusion