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Diss Factsheets
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EC number: 200-018-0 | CAS number: 50-21-5
- 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
![](https://poisoncentres.echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_physical-and-chemical-properties.png)
Auto flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- auto-ignition temperature (liquids)
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Justification for type of information:
- For details and justification of read-across please refer to the read-across report attached to IUCLID section 13.
- Reason / purpose for cross-reference:
- read-across source
- Key result
- Auto-ignition temperature:
- >= 400 °C
- Atm. press.:
- >= 1 011.4 - <= 1 018.9 hPa
- Conclusions:
- The auto-ignition temperature of a 93 % aqueous solution of lactic acid was determined to be ≥ 400 °C.
- Executive summary:
A commercially available auto-ignition temperatures apparatus was used for the determination of the degree of auto-ignitability of lactic acid 93 % aq. The test substance is auto-ignitable with an auto-ignition temperature of 400 °C or greater at a atmospheric pressure (1011.4–1018.9 hPa).
This information is used in a read-across approach in the assessment of the target substance.
For details and justification of read-across please refer to the attached report in section 13 of IUCLID.
Reference
Three tests were performed, each in triplicate, varying the amount of lactic acid solution that was introduced into the auto-ignition chamber. The reported auto-ignition temperature is the lowest temperature at which auto-ignition was recorded (rounded).
Results of the preliminary test:
The estimated auto-ignition temperature was 415 °C.
Main test:
The results of the main study on the determination of the auto-ignition temperature of the test substance are given inTable 1.
Ignition of the test substance within 5 minutes after introduction was observed with each sample volume and with each test a minimum auto-ignition temperature was obtained. The maximum deviation between the three values was 20 °C. According to the guidelines, no further testing was required.
The lowest temperature at which ignition of the test substance occurred was 403 °C. This temperature was rounded off to the nearest multiple of 5 °C giving an auto-ignition temperature of the test substance of 400 °C.
Test |
Volume [µl] |
Auto-ignition temperature [°C] |
Ignition delay [s] |
Colour of the flame |
Minimum auto-ignition temperature [°C] |
Test 1 |
40 |
430 |
3 |
orange |
412 |
|
50 |
412 |
5 |
orange |
|
|
70 |
418 |
5 |
orange |
|
|
|
|
|
|
|
Test 2 |
60 |
410 |
4 |
Orange/blue |
405 |
|
80 |
405 |
4 |
Orange/blue |
|
|
100 |
411 |
5 |
blue |
|
|
|
|
|
|
|
Test 3 |
45 |
418 |
4 |
orange |
403 |
|
70 |
403 |
5 |
blue |
|
|
90 |
408 |
4 |
blue |
|
Description of key information
The auto-ignition temperature of a 93% aqueous solution of lactic acid was determined to be ≥ 400 °C.
Key value for chemical safety assessment
- Autoflammability / Self-ignition temperature at 101 325 Pa:
- 400 °C
Additional information
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.
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