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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
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[Li0.3Mg5.5Si8O20(OH)4]
IUPAC Name:
magnesium(2+) lithium(1+) sodium bis(oxosilanebis(olate))
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