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EC number: 940-734-7 | CAS number: -
- 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

Endpoint summary
Administrative data
Description of key information
Additional information
Discussion of physicochemical properties of whole substance
The substance is a complex mixture of hydrocarbons with carbon numbers in the range C18-C24. It is a liquid, with a pour point of less than -20°C and a boiling range of 338-366°CC at 101.8 kPa. The measured relative density of the substance is 0.797 at 20±0.5°C and measured kinematic viscosity values of 9.2 mm²/s at 25ºC and 5.9 mm²/s at 40ºC .
The substance has measured vapour pressure values of 0.00012 Pa at 20°C, 0.00031 Pa at 25ºC and 0.02 Pa at 50°C. It has a measured water solubility value of <0.1 mg/l at 20±0.5°C and a measured log Kow of above 7.2 at 35°C and pH 7.3. It is not considered to be surface active.
Based on its structure and safe handling in use it is not considered to be flammable, have explosive or oxidising properties or be flammable in contact with air or moisture. It has a measured flash point of 170± 2°C (closed cup) with an auto-ignition temperature of 226 ± 5°C at 100.1 – 100.7 kPa.
Based on these physicochemical properties, the substance is not classified with regards to Regulation (EC) No 1272/2008 (CLP Regulation).
Physicochemical properties of constituents
Predicted property data for vapour pressure, water solubility, n-octanol/water partition coefficient (log Kow) and Henry’s Law constant (HLC) were obtained for the constituents as described below.
Partition coefficient
Measured values of octanol-water partition coefficients (log Kow) were retrieved from the literature. To fill data gaps, estimates were obtained from the Syracuse Research Corporation (SRC) KOWWIN program. The program is part of the EPIWIN property prediction software package.
The individual constituents of the substance have predicted log Kow values of 8.13 to >9 using a validated QSAR estimation method. Further details about the prediction are in the QMRF and QPRF attached to the IUCLID dossier.
Water solubility
Predicted water solubility value for the individual constituent was obtained using WSKOWWIN program.
The individual constituent of the substance has a predicted water solubility value of <0.0001 mg/l at 20°C. Therefore, the constituents are considered insoluble in water on the basis of available predicted results. Further details about the prediction are in the QMRF and QPRF attached to the IUCLID dossier.
Vapour pressure
The vapour pressure of the individual constituents of the substance was predicted using MPBPVP v1.43 program.
The individual constituent of the substance has a predicted vapour pressure value of 4.5E-06 Pa to 0.4 Pa at 25°C using a validated QSAR estimation method. Further details about the prediction are in the QMRF and QPRF attached to the IUCLID dossier.
Henry’s Law Constant (HLC)
Values can be calculated from the other physicochemical properties using the expression:
HLC (Pa.m3/mol) = [VP (Pa) x MW (g/mol)] ÷ [WS (mg/l)]
Where:
VP = vapour pressure; MW = molecular weight; WS = water solubility
Summary of relevant properties of constituents
The data are summarised in the table below
Table: Key physicochemical properties for constituents of Hydrocarbons, C18-C24, isoalkanes, <2% aromatics
Carbon Number |
CH3 |
CH2 |
branched |
Vapour pressure (Pa) at 25°C |
log Kow |
Water solubility at 20°C (mg/l) |
16 |
2 |
14 |
0 |
3.21E-01 |
8.20 |
<0.0001 |
17 |
2 |
15 |
0 |
1.05E-01 |
8.69 |
<0.0001 |
18 |
2 |
16 |
0 |
3.44E-02 |
>9 |
<0.0001 |
19 |
2 |
17 |
0 |
1.12E-02 |
>9 |
<0.0001 |
20 |
2 |
18 |
0 |
3.68E-03 |
>9 |
<0.0001 |
21 |
2 |
19 |
0 |
1.21E-03 |
>9 |
<0.0001 |
22 |
2 |
20 |
0 |
3.94E-04 |
>9 |
<0.0001 |
23 |
2 |
21 |
0 |
1.29E-04 |
>9 |
<0.0001 |
24 |
2 |
22 |
0 |
4.23E-05 |
>9 |
<0.0001 |
25 |
2 |
23 |
0 |
1.38E-05 |
>9 |
<0.0001 |
26 |
2 |
24 |
0 |
4.53E-06 |
>9 |
<0.0001 |
16 |
3 |
12 |
1 |
4.03E-01 |
8.13 |
<0.0001 |
17 |
3 |
13 |
1 |
1.32E-01 |
8.62 |
<0.0001 |
18 |
3 |
14 |
1 |
4.32E-02 |
>9 |
<0.0001 |
19 |
3 |
15 |
1 |
1.41E-02 |
>9 |
<0.0001 |
20 |
3 |
16 |
1 |
4.62E-03 |
>9 |
<0.0001 |
21 |
3 |
17 |
1 |
1.51E-03 |
>9 |
<0.0001 |
22 |
3 |
18 |
1 |
4.95E-04 |
>9 |
<0.0001 |
23 |
3 |
19 |
1 |
1.62E-04 |
>9 |
<0.0001 |
24 |
3 |
20 |
1 |
5.31E-05 |
>9 |
<0.0001 |
25 |
3 |
21 |
1 |
1.74E-05 |
>9 |
<0.0001 |
26 |
3 |
22 |
1 |
5.69E-06 |
>9 |
<0.0001 |
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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