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EC number: 285-349-9 | CAS number: 85085-18-3
Nanomaterial aspect ratio / shape
Administrative data
- Endpoint:
- nanomaterial aspect ratio/shape
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 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:
- 2 019
- Report date:
- 2019
Materials and methods
Test guideline
- Qualifier:
- no guideline required
- Principles of method if other than guideline:
- Hydrated particle size measurements were performed by Malvern Instruments on Batch number 06-2154-2 (Type 1). The instrument used was a Malvern Zetasizer Nano ZS capable of measuring particles in the nanometer range by Dynamic Light Scattering (DLS).
- GLP compliance:
- no
- Type of method:
- other: DSL
Test material
- Reference substance name:
- Silicate(2-), hexafluoro-, disodium, reaction products with lithium magnesium sodium silicate
- EC Number:
- 285-349-9
- EC Name:
- Silicate(2-), hexafluoro-, disodium, reaction products with lithium magnesium sodium silicate
- Cas Number:
- 85085-18-3
- Molecular formula:
- Na(1.00+/-0.99)[(Si8Mg(5.0+/-1.0)Li(1.00+/-0.99) O20 (OH)4-x Fx](1.00+/-0.99); with x=2.5+/-1.5
- IUPAC Name:
- Silicate(2-), hexafluoro-, disodium, reaction products with lithium magnesium sodium silicate
- Test material form:
- solid: particulate/powder
- Details on test material:
- Batch Number: 09-2151-1 (Type 1)
Date Manufactured: Type 1 – 2nd June 2009
Constituent 1
- Specific details on test material used for the study:
- Identification: Laponite Type 1 – Silicate(2-), hexafluoro-, disodium, reaction products with lithium magnesium sodium silicate,
CAS#85085-18-3, EC#285-349-9
Description: White powder
Batch Number Type 1 – 06-2154-2 + 09-2151-1
Date Manufactured: Type 1 – 06-2154-2 (26th July 2006) + 09-2151-1 (2nd June 2009)
Expiry Date: 4 years from manufacture
Storage conditions: Room temperature in the dark
Quoted stability: Stable at normal conditions
Results and discussion
Shape description
- Shape:
- other: disc
- Percentage:
- 100 %
Aspect ratio
- x Dimension:
- ca. 37.4
- St. dev.:
- 0.2
- y Dimension:
- ca. 37.4
- St. dev.:
- 0.2
- z Dimension:
- ca. 1
Applicant's summary and conclusion
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