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EC number: 234-514-3 | CAS number: 12007-60-2
- 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
Particle size distribution (Granulometry)
Administrative data
Link to relevant study record(s)
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 14th September 2017 - 17th October 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- Laser scattering/diffraction
- Mass median aerodynamic diameter:
- 149.794 µm
- Key result
- Percentile:
- D10
- Mean:
- 65.624 µm
- St. dev.:
- 0.291
- Key result
- Percentile:
- D50
- Mean:
- 149.794 µm
- St. dev.:
- 0.423
- Key result
- Percentile:
- D90
- Mean:
- 265.262 µm
- St. dev.:
- 0.381
- Conclusions:
- The particle size distribution for dilithium tetraborate was determined. The values obtained for d10, d50 and d90 were 65.624, 149.794 and 265.262 μm respectively (a mean of 5 runs).
- Executive summary:
The test was conducted according to ISO 13320:2009 and CIPAC MT 187 to determine the particle size distribution of dilithium tetraborate.
The values obtained for d10, d50 and d90 were 65.624, 149.794 and 265.262 μm respectively (a mean of 5 runs).
The coefficient of variation determined for d50 was less than 3% and for d10 and d90 were less than 5%. The repeatability of the particles size distribution were therefore within the acceptable limits as per the ISO 13320-1 test standard.
Reference
During the method development phase of the analysis trials were conducted using the dry powder module (DPM). The results of these trials indicated that the most appropriate test and material parameters to obtain the optimum measurements were:
Module : DPM
Dispersant : Air
Dispersion pressure : 0.0 barg
Refractive index (sample) : 1.500 n
Absorption : 0 AU
Analysis Model : General Purpose (Normal)
Using the identified parameters, the particle size was analysed over the range 0.02 μm to 2000 μm. The full results are presented below in Table 1.
Table 1: Full Test Results
|
RUN 1 |
RUN 2 |
RUN 3 |
RUN 4 |
RUN 5 |
Average* |
Volume weighted mean |
157.814 |
158.141 |
157.691 |
158.120 |
158.674 |
158.088 |
Median |
149.338 |
149.875 |
149.398 |
149.843 |
150.515 |
149.794 |
Mode |
167.940 |
168.439 |
167.805 |
168.541 |
168.937 |
168.334 |
d10 - 10 % of material is < |
65.303 |
65.692 |
65.556 |
65.442 |
66.150 |
65.624 |
d50 - 50 % of material is < |
149.338 |
149.875 |
149.398 |
149.843 |
150.515 |
149.794 |
d90 - 90 % of material is < |
265.363 |
265.250 |
264.557 |
265.435 |
265.696 |
265.262 |
All results are in μm
* Average result is calculated from the entirety of data captured in each run and is not a simple
arithmetic mean
The coefficient of variation was determined to be <3% for d50 and <5% for d10 and d90. The repeatability of the results were therefore considered acceptable and within the acceptable limits as per the ISO 13320-1 test standard.
Description of key information
The particle size distribution for dilithium tetraborate was determined. The values obtained for d10, d50 and d90 were 65.624, 149.794 and 265.262 μm respectively (a mean of 5 runs).
Additional information
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