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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
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EC number: 205-521-9 | CAS number: 142-09-6
- 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
Auto flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- auto-flammability
- Type of information:
- read-across based on grouping of substances (category approach)
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Secondary literature, peer reviewed handbook data
- Justification for type of information:
- Read across from the n-Butyl methacrylate category member donor substance.
REPORTING FORMAT FOR THE CATEGORY APPROACH
see attached category document
PM_Lower Alkyl (C1-C8) Methacrylates
The esters of the Lower Alkyl (C1-C8) Methacrylate category are a group of substances that show structurally related trends in physical chemical, toxicological and ecotoxicological properties. All members share a common chemical reactivity and biological properties that enable interpolation and read across between category members for many endpoints. - Qualifier:
- according to guideline
- Guideline:
- other: not known
- Principles of method if other than guideline:
- other
- GLP compliance:
- not specified
- Auto-ignition temperature:
- 294 °C
- Atm. press.:
- 1 013 hPa
- Remarks on result:
- other: pressure: no data, atmospheric press. assumed
- Conclusions:
- A reliable handbook value for auto-ignition temperature of 294 °C is reported.
- Executive summary:
A reliable handbook value for auto-ignition temperature of 294 °C is reported.
- Endpoint:
- auto-flammability
- Type of information:
- read-across based on grouping of substances (category approach)
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Handbook data. Basic information given.
- Justification for type of information:
- Read across from the n-Butyl methacrylate category member donor substance.
REPORTING FORMAT FOR THE CATEGORY APPROACH
see attached category document
PM_Lower Alkyl (C1-C8) Methacrylates
The esters of the Lower Alkyl (C1-C8) Methacrylate category are a group of substances that show structurally related trends in physical chemical, toxicological and ecotoxicological properties. All members share a common chemical reactivity and biological properties that enable interpolation and read across between category members for many endpoints. - Qualifier:
- according to guideline
- Guideline:
- other: not known
- Principles of method if other than guideline:
- The editors of the handbook stated that the values given were measured at ambient atmospheric pressure (1013 hPa). Therefor we assume that the value of auto flammability is a measured value.
- GLP compliance:
- not specified
- Auto-ignition temperature:
- 290 °C
- Atm. press.:
- 1 013 hPa
- Remarks on result:
- other: atmospheric pressure 1013 hPa
- Conclusions:
- A reliable handbook value for auto-flammability is 290 °C at 1013 hPa.
- Executive summary:
A reliable handbook value for auto-flammability is 290 °C at 1013 hPa.
- Endpoint:
- auto-flammability
- Type of information:
- read-across based on grouping of substances (category approach)
- Adequacy of study:
- weight of evidence
- Reliability:
- 1 (reliable without restriction)
- Justification for type of information:
- Read across from the 2 Ethylhexyl methacrylate category member donor substance.
REPORTING FORMAT FOR THE CATEGORY APPROACH
see attached category document
PM_Lower Alkyl (C1-C8) Methacrylates
The esters of the Lower Alkyl (C1-C8) Methacrylate category are a group of substances that show structurally related trends in physical chemical, toxicological and ecotoxicological properties. All members share a common chemical reactivity and biological properties that enable interpolation and read across between category members for many endpoints. - Qualifier:
- according to guideline
- Guideline:
- EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
- GLP compliance:
- yes (incl. QA statement)
- Auto-ignition temperature:
- 250 °C
- Atm. press.:
- >= 1 010 - <= 1 013 hPa
- Remarks on result:
- other:
- Conclusions:
- In a valid guideline study the self-ignition temperature of the test item is 250 °C.
- Executive summary:
In a valid guideline study the self-ignition temperature of the test item is 250 °C.
Referenceopen allclose all
The pressure at which this auto flammability measure was obtained is not specified in the report.
Preliminary test: The lowest self-ignition temperature was determined to be 258 oC.
Main test: The following table shows the results of the three principal tests. Temperatures, where self-ignition (+) was detected and where not (-). The amount of test item tested at each measurement is indicated as numbers of drops.
1. Principal test |
1. Principal test (continued) |
2. Principal test |
||||||
Barometric pressure at 1013.3 hPa |
Barometric pressure at 1012.3 hPa |
Barometric pressure at 1010.8 hPa |
||||||
T/oC |
drops |
+/- |
T/oC |
drops |
+/- |
T/oC |
drops |
+/- |
258 |
5 |
+ |
248 |
3 |
- |
253 |
5 |
+ |
253 |
5 |
- |
248 |
4 |
- |
248 |
8 |
- |
253 |
10 |
- |
248 |
5 |
- |
248 |
9 |
- |
253 |
2 |
- |
248 |
6 |
- |
248 |
10 |
- |
253 |
3 |
- |
248 |
8 |
- |
248 |
4 |
- |
253 |
8 |
+ |
248 |
9 |
- |
248 |
3 |
- |
248 |
8 |
- |
248 |
7 |
- |
|||
248 |
7 |
- |
248 |
2 |
- |
|||
248 |
9 |
- |
248 |
1 |
- |
|||
248 |
10 |
- |
248 |
5 |
- |
|||
248 |
2 |
- |
248 |
6 |
- |
|||
248 |
1 |
- |
248 |
8 |
- |
3. Principal test |
||
Barometric pressure at 1011.0 hPa |
||
T/oC |
drops |
+/- |
253 |
8 |
+ |
248 |
8 |
- |
248 |
9 |
- |
248 |
7 |
- |
248 |
10 |
- |
248 |
6 |
- |
248 |
5 |
- |
248 |
7 |
- |
248 |
1 |
- |
248 |
2 |
- |
248 |
3 |
- |
248 |
4 |
- |
248 |
8 |
- |
The self-ignition temperature of the test item is 250 oC.
Description of key information
For the endpoint auto flammability data of two source chemicals n-BMA and 2 -EHMA are available.
The auto flammability is reported to be 250°C for 2 -EHMA and 290°C (294°C) for nBMA,
thus the auto flammebility of n-HMA is predicted to be higher than 250°C.
Key value for chemical safety assessment
- Autoflammability / Self-ignition temperature at 101 325 Pa:
- 250 °C
Additional information
For the endpoint auto flammability data of two source chemicals n-BMA and 2 -EHMA are available.
The auto flammability is reported to be 250°C for 2 -EHMA and 290°C (294°C) for nBMA,
thus the auto flammebility of n-HMA is predicted to be higher than 250°C.
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.