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EC number: 215-662-8 | CAS number: 1338-24-5
- 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://echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_physical-and-chemical-properties.png)
Boiling point
Administrative data
Link to relevant study record(s)
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- 2010-06-07 to 2010-06-22
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- other: ASTM D86
- GLP compliance:
- not specified
- Type of method:
- distillation method
- Specific details on test material used for the study:
- Name of test material (as cited in study report): NA 140
- Boiling pt.:
- 269.5 - 338.9 °C
- Atm. press.:
- 101.3 kPa
- Conclusions:
- The boiling range of naphthenic acid was concluded to be 269.5 to 338.9 °C
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- 2010-07-01 to 2010-08-02
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study performed according to ASTM guideline.
- Qualifier:
- according to guideline
- Guideline:
- other: ASTM D86
- GLP compliance:
- not specified
- Type of method:
- distillation method
- Specific details on test material used for the study:
- - Name of test material: DNA 170
- Boiling pt.:
- 165.7 - 335.7 °C
- Atm. press.:
- 101.3 kPa
- Conclusions:
- The boiling range of naphthenic acid was concluded to be 165.7 to 335.7 °C
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- 2010-07-01 to 2010-08-02
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study performed according to ASTM guideline.
- Qualifier:
- according to guideline
- Guideline:
- other: ASTM D86
- GLP compliance:
- not specified
- Type of method:
- distillation method
- Specific details on test material used for the study:
- Name of test material: DNA 200
- Boiling pt.:
- 162.7 - 328.8 °C
- Atm. press.:
- 101.3 kPa
- Conclusions:
- The boiling range of naphthenic acid was concluded to be 162.7 to 328.8 °C
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- 2010-07-01 to 2010-08-02
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study
- Remarks:
- ASTM guideline
- Qualifier:
- according to guideline
- Guideline:
- other: ASTM D86
- GLP compliance:
- not specified
- Type of method:
- distillation method
- Boiling pt.:
- 218.3 - 347.1 °C
- Atm. press.:
- 101.3 kPa
- Conclusions:
- The boiling range of naphthenic acid was concluded to be 218.3 to 347.1 °C
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- 2010-07-01 to 2010-08-02
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study performed according to ASTM guideline.
- Qualifier:
- according to guideline
- Guideline:
- other: ASTM D86
- GLP compliance:
- not specified
- Type of method:
- distillation method
- Specific details on test material used for the study:
- - Name of test material: CNA 190/280
- Boiling pt.:
- 106.4 - 333.6 °C
- Atm. press.:
- 101.3 kPa
- Conclusions:
- The boiling range of naphthenic acid was concluded to be 106.4 to 333.6 °C
Referenceopen allclose all
Detailed information on the boiling trajectory of naphthenic acids is presented in the table below
% recovered | Result (°C) |
Initial boiling point | 269.5 |
5 | 293.5 |
10 | 301.3 |
20 | 310.1 |
30 | 318.2 |
40 | 326.1 |
50 | 331.0 |
60 | 335.0 |
70 |
335.9 |
Detailed information on the boiling trajectory of naphthenic acids is presented in the table below
% recovered | Result (°C) |
Initial boiling point | 165.7 |
5 | 225.2 |
10 | 272.6 |
20 | 289.3 |
30 | 304.7 |
40 | 315.3 |
50 | 323.1 |
60 | 330.3 |
70 |
335.7 |
Detailed information on the boiling trajectory of naphthenic acids is presented in the table below
% recovered | Result (°C) |
Initial boiling point | 162.7 |
5 | 251.2 |
10 | 266.6 |
20 | 278.4 |
30 | 288.3 |
40 | 297.7 |
50 | 304.8 |
60 | 312.1 |
70 |
320.3 |
80 | 328.8 |
Detailed information on the boiling trajectory of naphthenic acids is presented in the table below
% recovered | Result (°C) |
Initial boiling point | 218.3 |
5 | 243.4 |
10 | 266.3 |
20 | 283.6 |
30 | 305.8 |
40 | 319.0 |
50 | 330.5 |
60 | 340.2 |
70 |
347.1 |
Detailed information on the boiling trajectory of naphthenic acids is presented in the table below
% recovered | Result (°C) |
Initial boiling point | 106.4 |
5 | 235.8 |
10 | 243.6 |
20 | 252.4 |
30 | 259.0 |
40 | 265.2 |
50 | 271.5 |
60 | 283.7 |
70 |
295.8 |
80 | 318.1 |
90 | 333.6 |
Description of key information
The boiling range of naphthenic acid was determined using five experimental studies considered reliable without restrictions (K1) following the ASTM D86 method (Van Ryckeghem M, 2010) in a weight of evidence approach. Following ranges were reported for each study respectively: 269.5 to 338.9°C, 165.7 to 335.7 °C, 162.7 to 328.8 °C, 218.3 to 347.1 and 106.4 to 333.6 °C.
Key value for chemical safety assessment
- Boiling point at 101 325 Pa:
- 254.9 °C
Additional information
Because naphthenic acid is a mixture of many different isomers of cycloalkyl carboxylic acids, physicochemical properties vary according to the proportions of the individual compounds in their composition. Therefore it is not possible to set a specific boiling point and boiling point ranges are used. These can vary depending on the composition of the naphthenic acids as reflected by the generated data. As a worst case the broadest possible range was used.
In one study an initial boiling point of 106.4 °C was reported, which was below all expectations. It was assumed that this was due to the contamination of the sample with water residues. Therefore this value was not taken into consideration for determining the boiling range.
Value used for CSA: 162.7 to 347.1 °C at 101 325 Pa
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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