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EC number: 219-799-4 | CAS number: 2536-05-2
- 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
Viscosity
Administrative data
Link to relevant study record(s)
- Endpoint:
- viscosity
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 19-03-2019 until 30-04-2019
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Test Guideline 114 (Viscosity of Liquids)
- Guideline:
- ISO 3104 (Petroleum products - Transparent and opaque liquids - Determination of kinematic viscosity and calculation of dynamic viscosity)
- Version / remarks:
- 1994
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- capillary viscometer (static)
- Standard covering the apparatus used:
- CIPAC method MT 22 1994, reprinted 2007
- Specific details on test material used for the study:
- Test Item Name: 2,2'-MDI (EC Number: 219-799-4)
Substance Name: 2,2'-methylenediphenyl diisocyanate
Batch/ Lot Number: WRS4821
Expiry date: 10/03/2019 storage < 5°C - Temp.:
- other: 50°C
- Parameter:
- kinematic viscosity (in mm²/s)
- Remarks on result:
- not determinable
- Conclusions:
- it was not possible to determine viscosity at temperatures below 50°C.
- Executive summary:
Test Objective and Information
To determine the viscosity of a fluid.
The test is conducted in accordance with ISO 3104:1994 and OECD Test Guideline 114.Test Method
The viscometer is charged with sample to the upper charging mark with precaution, so that the walls above the mark are not made wet by sample. Sample is then allowed to flow in an unbroken column through the capillary to about 5 mm below the lower charging mark. The flow is stopped by closing the timing tube and more sample added to make up to the mark. The viscometer is then allowed to attain temperature equilibrium, and then the timing tube is opened to allow the sample to flow to the lower charging mark. The tube is closed again and the upper level of the sample is adjusted by adding or removing sample.
The timing tube is opened to allow the liquid to flow under its own head. The time, to within 0.2 seconds, is measured as the sample transverse the tube from the bottom of the lower timing mark to the upper timing mark. Liquid surface is taken as the uppermost portion of the advance liquid.
The viscometer is cleaned with a suitable solvent, dried, then refilled and flow time measurement is repeated. The difference between the repeated measurements must not be more than 0.2 seconds.
The kinematic viscosity of the specimen for each run is then obtained from the expression
Kinematic viscosity = Ct (mm2.s-1)
Where:
C = Constant of the viscometer,t = Flow time in seconds.
Measurement Range : 1.2 to 300000 mm2.s-1
Accuracy : 0.6 % to 1.2 %
T esting Standard : CIPAC method MT 22 1994, reprinted 2007Apparatus : Viscometer, Thermometer and Stop watch.
Comments
Sample was held at 50°C for approximately a 2-hour period and was only partially melted. As the test item was not a homogeneous liquid over this period it was not possible to determine viscosity at temperatures below 50°C.
An attempt was made to see if sample would be homogenous over a prolonged period (5 hours) of heating. Sample was still only partially melted over this time period. Therefore, testing was not possible.
Reference
Sample was held at 50°C for approximately a 2-hour period and was only partially melted. As the test item was not a homogeneous liquid over this period it was not possible to determine viscosity at temperatures below 50°C.
An attempt was made to see if sample would be homogenous over a prolonged period (5 hours) of heating. Sample was still only partially melted over this time period. Therefore, testing was not possible.
Description of key information
In a study (DEKRA 2019) the sample was held at 50°C for approximately a 2-hour period and was only partially melted. As the test item was not a homogeneous liquid over this period it was not possible to determine viscosity at temperatures below 50°C.
Key value for chemical safety assessment
Additional information
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