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EC number: 226-956-0 | CAS number: 5578-42-7
- 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:
- pyrophoric liquids
- 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:
- flammable liquids: obsolete as covered by section 'Flash point'
- Data waiving:
- study technically not feasible
- Justification for data waiving:
- the study does not need to be conducted because the substance is a liquid
- Endpoint:
- substances / mixtures which in contact with water emit flammable gases
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2012-04-06
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Remarks:
- The study was conducted in accordance with a relevant test method but not in compliance with GLP.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.12 (Flammability (Contact with Water))
- Deviations:
- no
- GLP compliance:
- no
- Other quality assurance:
- other: ISO 9001:2008
- Key result
- Test procedure:
- step 1
- step 2
- step 3
- step 4
- other: The maximum rate of gas evolved after 7 hours in three tests was less than 1 L / (kg h). The initial expansion of gas was caused by the exothermic reaction with the release of hydrogen chloride gas.
- Max. rate of gas release:
- 0.38 L/kg h
- Identity of evolved gas:
- as specified:
- Remarks:
- HCl
- Interpretation of results:
- not classified based on GHS criteria
- Conclusions:
- The maximum rate of gas evolution in 1 h cannot be higher than the measured total quantity of gas after 7 h. The total quantity in 7 h as a maximum rate of gas evolution is clearly less than 1 L / (kg h) in each of the 3 tests:
Test 1: 0.38 L / (kg h).
Test 2: 0.30 L / (kg h).
Test 3: 0.18 L / (kg h). - Executive summary:
The experiments according to EC test guideline A.12 showed that the maximum rate of gas evolved after 7 hours in three tests was less than 1 L / (kg h). The initial expansion of gas was caused by the exothermic reaction with the release of hydrogen chloride gas.
Referenceopen allclose all
RESULTS
Step 1: Test
Sample weight = 0.02 g
No Gas evolved
No Ignition of gas
Step 2: Test
Sample weight = 0.02 g
No Gas evolved
No Ignition of gas
Step 4: Test 1, Test 2, Test 3
Sample weight [g] 10,16g, 10,21g, 10,06g
Rate of gas evolution [ml] per hour interval after initial addition of 20 ml water
in the 1st hr 18,8ml, 20,6ml 12,6ml
in the 2nd hr - 8,2ml - 8,8ml - 5,8ml
in the 3rd hr - 3,2ml - 3,2ml - 6,1ml
in the 4th hr - 1,7ml - 2,3ml 0,5ml
in the 5th hr - 0,7ml - 1,1ml 0,1ml
in the 6th hr - 0,9ml - 1,3ml 0,7ml
in the 7th hr - 0,2ml - 0,8ml - 0,2ml
Total quantity of gas [ml] 3,9ml, 3,1ml, 1,8ml
Total time of gas evolution [h] 7 hours
Average rate of gas evolution 0,055 l/(kg.h) 0,043 l/(kg.h) 0,026 l/(kg.h)
Room temperature 20.7–22.3°C 20.7–22.3°C 20.3–22.0°C
The average rate of gas evolution is clearly less than 1 L / (kg h) in each of the 3 tests in step 4. The maximum rate of gas evolution is not directly applicable. After mixing the test substance with water there is a spontaneous and exothermic reaction. The test substance
hydrolyses under the formation of HCl and the temperature increases (see hydrolysis), so that the surface of the reaction vessel becomes very hot. This is the reason of a thermal expansion of the head space which has a strong influence on the volumetric measurement (increasing volume). In the following measurements (after the next hours and the end of the reaction) the temperature decreases gradually and causes also decreasing gas volumes.
Conclusion:
The maximum rate of gas evolution in 1 h cannot be higher than the measured total quantity of gas after 7 h. The total quantity in 7 h as a maximum rate of gas evolution is clearly less than 1 L / (kg h) in each of the 3 tests: Test 1: 0.38 L / (kg h). Test 2: 0.30 L / (kg h).
Test 3: 0.18 L / (kg h).
Description of key information
Flammability: Not flammable
Key value for chemical safety assessment
- Flammability:
- not classified
Additional information
The flammability study is not required for liquids as flammability is assessed on the basis of flash point.
There is no indication on the basis of structure and experience in handling and use that the substance is pyrophoric (flammable in contact with air).
Therefore, in accordance with Section 1 of REACH Annex XI, there is no need to conduct further flammability testing.
The flammability in contact with water of the substance was assessed in accordance with EU Method A.12. During the study, the substance was observed to hydrolyse after mixing with water, forming HCl gas with an increase in temperature. At the end of the reaction/study, the temperature gradually decreases with a corresponding decrease in the volume of the gas. Therefore, under the condition of the study, the substance is considered not flammable in contact with water.
There is no concern regarding flammability in contact with air based on experience in handling and use.
Justification for classification or non-classification
The substance is not classified for flammability according to Regulation (EC) No. 1272/2008. This is on the basis of a measured flash point of 76°C and a boiling point of 206°C. Similarly, the substance is not classified for flammability in contact with water on the basis of measured result in accordance with EU Method A.12.
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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