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EC number: 212-736-1 | CAS number: 865-33-8
- 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
Flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- substances / mixtures which in contact with water emit flammable gases
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 02.2022 - 04.2022
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- UN Manual of Tests and Criteria: Test N.5 (Test method for substances which in contact with water emit flammable gases)
- Deviations:
- not specified
- GLP compliance:
- no
- Key result
- Test procedure:
- step 4
- Max. rate of gas release:
- 4.85 L/kg h
- Remarks on result:
- easy reaction with water but no spontaneous ignition of the evolved gas
- Test procedure:
- step 1
- step 2
- step 3
- Remarks on result:
- easy reaction with water but no spontaneous ignition of the evolved gas
- Interpretation of results:
- not classified based on GHS criteria
- Remarks:
- results show that a classification according to substances and mixtures which in contact with water emit flammable gases is not warranted.
- Conclusions:
- Potassium methanolate powder easily reacts in contact with water and evolves methanol vapor without spontaneous ignition of the evolved vapor. No flammable gas is emitted.
- Endpoint:
- pyrophoric solids
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because the substance is known to be stable in contact with air at room temperature for prolonged periods of time (days) and hence, the classification procedure does not need to be applied
- Endpoint:
- self-heating substances / mixtures
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- other:
- Endpoint:
- substances / mixtures which in contact with water emit flammable gases
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study with acceptable restrictions
- Remarks:
- reliable measurements, but few deficits in the study report
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- EU Method A.12 (Flammability (Contact with Water))
- Deviations:
- no
- Principles of method if other than guideline:
- The study satifies also the requirements of the "orange book" (UN recommendations for the Transport of dangerous goods)
- GLP compliance:
- not specified
- Max. rate of gas release:
- 5 other: L/kg s
- Identity of evolved gas:
- as specified:
- Remarks:
- methanol
- Remarks on result:
- easy reaction with water but no spontaneous ignition of the evolved gas
- Interpretation of results:
- Category 1 (substances or mixtures which in contact with water release flammable gases which may ignite spontaneously) based on GHS criteria
- Conclusions:
- The substance forms flammable methanole vapors if in contact with water. A classification according to GHS (2.12) is necessary (category 1).
- Endpoint:
- flammable solids
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1989
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study with acceptable restrictions
- Remarks:
- reliable, with few deficits in the study report
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- EU Method A.10 (Flammability (Solids))
- Deviations:
- no
- Principles of method if other than guideline:
- Additionally also the reqirements of the "orange book" (UN-Norrm) were fullfilled (especially the application of a wet zone)
- Test procedure:
- burning time (test type not further specified)
- Remarks:
- or specified in description of method
- Burning time:
- >= 51 - <= 59 s
- Interpretation of results:
- Category 1 (flammable solids) based on GHS criteria
- Conclusions:
- Classification according to regulation (EC) 1272/2008, Annex VI, No. 2.7.2.3: Cat.1, H228, Danger, flammable solid.
- Endpoint:
- substances / mixtures which in contact with water emit flammable gases
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- supporting study
- Study period:
- 06/04/2010-20/05/2010
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Remarks:
- reliable, well documented study. The reliability was changed from RL1 to RL2 according to the ECHA guidance document “Practical guide 6: How to report read-across and categories (March 2010) to reflect the fact that this study was conducted on a read-across substance.
- Qualifier:
- according to guideline
- Guideline:
- UN Manual of Tests and Criteria: Test N.5 (Test method for substances which in contact with water emit flammable gases)
- Version / remarks:
- ''Recommendation on the Transport of Dangerous Goods'', Manual of Tests & Criteria, fourth revised edition, test N.5, SOP SPZ-106
- Deviations:
- no
- GLP compliance:
- no
- Conclusions:
- Due to the similar structure and physical-chemical properties of sodium methanolate and potassium methanolate, the read-across approach for this endpoint can be applied. The experimental result of ignition in contact with water for sodium methanolate can be used to predict the similar property of potassium methanolate: no evolution of gas and no ignition when in contact with water.
- Endpoint:
- self-heating substances / mixtures
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study with acceptable restrictions
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- UN Manual of Tests and Criteria: Test N.4 (Test method for self-heating substances)
- GLP compliance:
- no
- Test procedure:
- 25 mm sample cube at 140°C
- Result:
- positive outcome (effect observed)
- Interpretation of results:
- Category 2 (self-heating substances and mixtures) based on GHS criteria
- Conclusions:
- For packages > 3m3 classification (category 2) has to be discussed in respect to self-heating properties.
Referenceopen allclose all
In contact with water, methanol forms flammable vapours of about 5 l/kg*s without any self ignition.
Tests with a wet zone showed, that the propagation of the flame was not stopped by the moistened substance.
In Step 1 and Step 2 (Preliminary test) there was no evolution of gas and no ignition observed.
Results for the maximum rate of gas evolution:
The test procedure was performed in triplicate.
Test no.1: 0.72 l/(kg∙h)
Test no.2: 0.56 l/(kg∙h)
Test no.3: 0.72 l/(kg∙h)
The highest amount of gas was 18 ml and this result was obtained within the first hour of measuring. Within the remaining time period of 6 h (prescribed time of 7 h in total) no further gas evolution occurred.
From the results (< 1 l/(kg∙h)) it is obvious that the substance does not fulfil the criteria of the UN transport class 4.3.
The test for self heating properties in a 2.5 cm cube according the "Recommendations to the Transport of dangerous goods" (UN Norm) showed self-heating properties of the material in contact with oxygene.
Description of key information
Highly flammable. Burning time 51-59 s. Positive outcome for self-heating.
Key value for chemical safety assessment
- Flammability:
- flammable
Additional information
No ignition on contact with air. Easy reaction with water but no spontaneous ignition of the evolved gas.
Tests with a wet zone showed that the propagation of the flame was not stopped by the moistened substance. On contact with water substance liberates highly flammable gases.
Justification for classification or non-classification
Classification according to regulation (EC) 1272/2008, Annex VI, No. 2.7.2.3: Cat. 1, H228, Danger, flammable solid, and Self-Heat.1 (H251).
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.
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