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EC number: 936-414-1 | CAS number: -
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Nanomaterial surface chemistry
Administrative data
- Endpoint:
- nanomaterial surface chemistry
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2019 / 2021
- 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
Referenceopen allclose all
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 021
- Report date:
- 2021
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 019
- Report date:
- 2019
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 019
- Report date:
- 2019
Materials and methods
- Principles of method if other than guideline:
- Elemental analysis
Thermo Scientific Flash 2000 elemental analyzer (NCHS)
Thermo Finnigan FLASH EA-1112 Series Elemental Analyzer (O) - GLP compliance:
- not specified
- Type of method:
- AES
Test material
- Reference substance name:
- carbon
- EC Number:
- 936-414-1
- Molecular formula:
- C
- IUPAC Name:
- carbon
- Test material form:
- solid: nanoform, no surface treatment
- Details on test material:
- -- Jenotube 6A - SIP
Purity (wt%) : 98 – 99.2
Bundle length : 10.6 μm – 211.1 μm
Bundle diameter : 0.6 μm – 8.8 μm
Tube diameter : 4.4 nm – 12.8 nm
BET surface area (m²/g) : 576 – 742
Number of walls : 3 – 9
-- Jenotube 8A – SIP
Purity (wt%) : 98.5 – 99.7
Bundle length : 1.9 μm – 552.0 μm
Bundle diameter : 0.33 μm – 7.93 μm
Tube diameter : 5.1 nm – 11.6 nm
BET surface area (m²/g) : 541 – 618
Number of walls : 5 – 8
-- Jenotube 10A – SIP
Purity (wt%) : 97.8 – 99.2
Bundle length : 9.4 μm – max. 106.4 μm
Bundle diameter : 1.1 μm – 15.24 μm
Tube diameter : 7.9 nm – max. 14.2 nm
BET surface area (m²/g) : 223 – 278
Number of walls : 5 – 12
-- Jenotube 10B – SIP
Purity (wt%) : 97.3 – 98.9
Bundle length : 10.5 μm – 117.7 μm
Bundle diameter : 1.1 μm – 15.4 μm
Tube diameter : 8.3 nm – 17.9 nm
BET surface area (m²/g) : 181 – 249
Number of walls : 7 – 18
-- Jenotubes 6A, 8A, 10A and 10B
Shape category : elongated
Shape of particles : tube
Pure shape : yes
Crystal structure : crystalline
Pure structure : yes
Crystal system : armchair, zig-zag and chiral
Surface treatment/functionalisation : no
State of aggregation : agglomerated
Constituent 1
Data gathering
- Instruments:
- Thermo Scientific Flash 2000 elemental analyzer (NCHS)
Thermo Finnigan FLASH EA-1112 Series Elemental Analyzer (O)
Results and discussion
- Coating / functionalisation:
- neither
Coating
Atomic compositionopen allclose all
- Key result
- Element:
- Nitrogen
- Remarks on result:
- not determinable
- Remarks:
- (< LOD) Jenotube 10B
- Key result
- Element:
- Oxygen
- Fraction:
- >= 0.35 - <= 0.37
- Remarks on result:
- other: Jenotube 10B
- Key result
- Element:
- Hydrogen
- Remarks on result:
- not determinable
- Remarks:
- (< LOD) Jenotube 10B
- Key result
- Element:
- Carbon
- Fraction:
- >= 96.6 - <= 97.4
- Remarks on result:
- other: Jenotube 10B
- Key result
- Element:
- Oxygen
- Fraction:
- >= 0.16 - <= 0.18
- Remarks on result:
- other: Jenotube-10A
- Key result
- Element:
- Nitrogen
- Remarks on result:
- not determinable
- Remarks:
- (< LOD) Jenotube 10A
- Key result
- Element:
- Hydrogen
- Fraction:
- >= 0.11 - <= 0.13
- Remarks on result:
- other: Jenotube-10A
- Key result
- Element:
- Carbon
- Fraction:
- >= 95.8 - <= 96
- Remarks on result:
- other: Jenotube-10A
- Key result
- Element:
- Oxygen
- Fraction:
- >= 0.3 - <= 0.35
- Remarks on result:
- other: Jenotube-8
- Key result
- Element:
- Hydrogen
- Fraction:
- >= 0.18 - <= 0.2
- Remarks on result:
- other: Jenotube-8
- Key result
- Element:
- Carbon
- Fraction:
- >= 97.32 - <= 97.65
- Remarks on result:
- other: Jenotube-8
- Key result
- Element:
- Nitrogen
- Fraction:
- >= 0.04 - <= 0.05
- Remarks on result:
- other: Jenotube-8
- Key result
- Element:
- Oxygen
- Fraction:
- >= 0.68 - <= 0.69
- Remarks on result:
- other: Jenotube-6
- Key result
- Element:
- Hydrogen
- Fraction:
- >= 0.15 - <= 0.16
- Remarks on result:
- other: Jenotube-6
- Key result
- Element:
- Carbon
- Fraction:
- >= 95.73 - <= 96.15
- Remarks on result:
- other: Jenotube-6
- Key result
- Element:
- Nitrogen
- Fraction:
- >= 0.04 - <= 0.05
- Remarks on result:
- other: Jenotube-6
Any other information on results incl. tables
See details in study reports. Full study reports are attached to the references given under section "Data source".
Applicant's summary and conclusion
- Conclusions:
- Elemental analysis was performed to determine the organic elemental ratio in the sample. N/C/H/S and oxygen analyses were performed using Thermo Scientific Flash 2000 elemental analyzer and Thermo Finnigan FLASH EA-1112 Series Elemental Analyzer, respectively. The samples were encapsulated into tin and silver capsule for C/N/H/S and oxygen analysis, respectively, and then dropped into reactor chamber. N/C/H/S were measured as follows depending on the member of the set of MWCNT.
Nitrogen avg. n.d. - 0.05 % (w/w)
Carbon avg. 95.9 - 97.46 % (w/w)
Hydrogen avg. n.d. - 0.19 % (w/w)
Oxygen avg. 0.17 - 0.69 % (w/w) - Executive summary:
Elemental analysis was performed to determine the organic elemental ratio in the sample. N/C/H/S and oxygen analyses were performed using Thermo Scientific Flash 2000 elemental analyzer and Thermo Finnigan FLASH EA-1112 Series Elemental Analyzer, respectively. The samples were encapsulated into tin and silver capsule for C/N/H/S and oxygen analysis, respectively, and then dropped into reactor chamber.
Nitrogen avg.
Carbon avg.
Hydrogen avg.
Oxygen avg.
Jenotube-6A
0.04
95.95
0.15
0.69
Jenotube-8A
0.05
97.46
0.19
0.32
Jenotube-10A
Not detected
95.9
0.12
0.17
Jenotube-10B
Not detected
97.0
Not detected
0.36
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