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EC number: 211-706-5 | CAS number: 688-74-4
- 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
Water solubility
Administrative data
Link to relevant study record(s)
- Endpoint:
- water solubility
- Type of information:
- other: experimental study on hydrolysis product Boric acid
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Deviations:
- not specified
- GLP compliance:
- yes
- Type of method:
- flask method
- Water solubility:
- 49.2 g/L
- Temp.:
- 20 °C
- pH:
- 3.7
- Details on results:
- Preliminary solubility test
The estimated water solubility is approximately 8.29 g/L. This value means that the shake-flask method had to be applied. Because of the theoretical water solubility (47 g/L) the water solubility test was performed using the theoretical value.
The mean value of the water solubility of Test 1, 2 and 3 is 49.20 ± 0.35 g/L. - Conclusions:
- The water solubility of the test substance was 49.20 ± 0.35 g/L at 20.0 ± 0.5 ºC.
Interpretation of results: very soluble (> 10000 mg/L). - Endpoint:
- water solubility
- Type of information:
- other: experimental study on hydrolysis product n-Butanol
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Qualifier:
- according to guideline
- Guideline:
- other: no data
- Principles of method if other than guideline:
- The information does not come from a test report and the minimum fields cannot be filled in.
- GLP compliance:
- not specified
- Type of method:
- other: no data
- Key result
- Water solubility:
- 77 g/L
- Temp.:
- 20 °C
- Remarks on result:
- other: pH unknown
- Conclusions:
- 77 g/L at 20°C
- Executive summary:
According to the 'Handbook of Environmental Fate and Exposure Data for Organic Chemicals, Volume II, Solvents', the water solubility of Tributyl borate is 77 g/L (at 20°C).
No further experimental details are reported in the handbook.
- Endpoint:
- water solubility
- Type of information:
- other: experimental study on hydrolysis product n-Butanol
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: data from well documented publication
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- EPA OPPTS 830.7860 (Water Solubility Generator Column Method)
- Principles of method if other than guideline:
- Details of the generator column:
- It consists of a 20-cm section of 6-mm o.d. Pyrex tubing joined to a short section of 9-mm o.d. Pyrex tubing. The 6-mm o.d. section of the column was packed with 100-120 mesh Chromosorb W-HP (solid support) which was held in place by two plugs of silanized glass wool. The column was thermostated at 25.0 ± 0.1 °C by pumping water from a constant-temperature bath through a jacket enclosing column.
- The column was coated with a liquid solute by pulling approximately 2 mL of the liquid through the clean, dry support with gentle suction.
- The aqueous phase of the solute was generated by pumping water into the inlet of the coated generator column either by using a minipump or by means of a water reservoir using compressed air at 5 psi.
- Analysis of the aqueous phase from the pure solute coated column yielded the aqueous solubility. - GLP compliance:
- not specified
- Type of method:
- other: Generator Column Method
- Water solubility:
- 63.3 g/L
- Temp.:
- 25 °C
- Remarks on result:
- other: pH unknown
- Details on results:
- The reported water solubility is an average of at least three measurements.
- Conclusions:
- 63.2 g/L at 25°C
- Executive summary:
According to a well documented publication (Tewari Y.B. et al, 1982), the water solubilty of Tributyl borate is 63.2 g/L (at 25°C). The measurement was performed with a modified Generator Column Method.
Referenceopen allclose all
Solubility (shake flask method): Test number, stirring time, Tyndall value and the water solubility of the test substance at 20 ºC:
Test number |
Stirring time (h) |
pH |
Tyndall |
Water solubility (g/L) |
1 |
24 |
3.75 |
0.0020 (0.0018) |
48.86 |
2 |
48 |
3.54 |
0.0031 (0.0020) |
49.57 |
3 |
72 |
3.98 |
0.0022 (0.0021) |
49.16 |
The value between parentheses is Tyndall value of the blank.
Description of key information
Study scientifically not necessary because tributyl borate is rapidly hydrolyzed to boric acid and n-butanol in the presence of water:
- water solubilty of boric acid: 49.2 g/L (at 20°C)
- water solubilty of n-butanol: 77 g/L at 20°C (handbook data) and 63.2 g/L at 25°C (data from publication); key value (arithmetic mean of the two available values) ca. 70 g/L at 20°C
Key value for chemical safety assessment
- Water solubility:
- 70 g/L
- at the temperature of:
- 20 °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.
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