Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 217-886-1 | CAS number: 1999-85-5
- 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:
- March 2011
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Well conducted study according to EU draft and ISO guidelines, under Internal Management System and certificate of analysis included in the report.
- Qualifier:
- according to guideline
- Guideline:
- other: ISO2591-1, Test sieving – Part 1: Methods using test sieves of woven wire cloth and perforated metal plate, December 1988
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 3310-1, Test sieves – Technical requirements and testing – Part 1: Test sieves of metal wire cloth, July 1990
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: Intern Akzo Nobel SMA 721.02, Determination of the particle size distribution of powders and granular products
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: Intern AkzoNobel SMA743.02, Distribution of powders and granulated products in representative portions, August 1993
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: DRAFT EUR 20268 EN Guidance document on the determination of particle size distribution, fiber length and diameter distribution of chemical substances, 2002
- Deviations:
- no
- GLP compliance:
- no
- Remarks:
- Internal Management System
- Type of method:
- sieving
- Type of distribution:
- other: passing 100 µm sieve
- Percentile:
- D50
- Mean:
- < 100 µm
- Remarks on result:
- other: No particles pass the sieve. (migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.)
- Conclusions:
- Light microscopic examination revealed that the α,α,α',α'-tetramethyl-m-xylene-α,α-diol contains a small amount of particles < 100 µm. The shape of these fines is non-fibrous.
No particles pass the 100 µm sieve. The presence of water makes the product more sticky and the (fine) particles agglomerate. As a result α,α,α',α'-tetramethyl-m-xylene-α,α-diol is not dusty.
There is no inhalation risk related to α,α,α',α'-tetramethyl-m-xylene-α,α-diol. - Executive summary:
The granulometry of α,α,α',α'-tetramethyl-m-xylene-α,α-diol was determined in accordance with European Chemicals Agency (ECHA), Guidance on information requirements and chemical safety assessment, Chapter R.7a, Endpoint specific guidance, May 2008.
Reference
Light microcopic examination
The picture in the report shows that a small amount of particles < 100 µm is present. The shape of these fines is non-fibrous. See attachment.
Sieving
Fraction |
Pot 2 |
Pot 3 |
||
[g] |
[%] |
[g] |
[%] |
|
< 100µm |
0.00 |
0.0 |
0.00 |
0.0 |
> 100µm |
100.49 |
100.0 |
105.50 |
100.0 |
It is shown that no particles pass the 100 µm sieve. The presence of water makes the product more sticky and the (fine) particles agglomerate. Consequently no PSD(Particle Size Distribution) has to be determined.
Description of key information
There is no inhalation risk related to α,α,α',α'-tetramethyl-m-xylene-α,α-diol. Light microscopic examination revealed that the α,α,α',α'-tetramethyl-m-xylene-α,α-diol contains a small amount of particles < 100 µm. The shape of these fines is non-fibrous.
No particles pass the 100 µm sieve. The presence of water makes the product more sticky and the (fine) particles agglomerate. As a result α,α,α',α'-tetramethyl-m-xylene-α,α-diol is not dusty.
Additional information
The particle size distribution of the sample analysed in China of α,α,α',α'-tetramethyl-m-xylene-α,α'-diol is different than the standard sample analysed in The Netherlands by Altena.The data for granulometry are dependent on the type, production and pretreatment of the sample.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.