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EC number: 238-936-9 | CAS number: 14866-33-2
Endpoint summary
Administrative data
Description of key information
Appearance / physical state / colour:
The appearance of Tetraoctylammonium bromide was observed as off white colored solid powder compound.
Melting point/ Freezing point:
The mean melting temperature range of Tetraoctylammonium bromide (CAS No. 14866-33-2) was determined to be 91°C - 95°C at 967.6 hPa.
Boiling point:
The mean boiling point of Tetraoctylammonium bromide (CAS No. 14866-33-2) is 209.3°C at 966.8 hPa.
Density:
The mean density of Tetraoctylammonium bromide (CAS No. 14866-33-2) was determined to be 0.7898 g/cm³ at 20 °C and 968.1 hPa..
Particle size distribution (Granulometry):
The particle size distribution of substance Tetraoctylammonium bromide was determined in the range of 150 micron to 75 micron.
Vapour pressure:
The estimated vapour pressure of substance Tetraoctylammonium bromide at 25 deg C was 0.000000000000141 Pa.
Partition coefficient:
The octanol water partition coefficent (log Pow) of chemical Tetraoctylammonium Bromide (CAS no. 14866-33-2) was estimated to be 4.47 at temparature 25oC. By this log Pow value chemical Tetraoctylammonium Bromide is considered as hydrophilic in nature.
Water solubility:
The solubility of Tetraoctylammonium bromide (14866-33-2 ) in water was determined to be 28.984 mg/L at 30°C.
Surface tension:
In accordance with column 2 of Annex VII of the REACH regulation, the study need only be conducted if surface activity is a desired property of the chemical. The Tetraoctylammonium bromide (14866-33-2) is used frequently as a laboratory chemical, Synthesis of substances, etc. For this use, surface activity is not an important property. Hence this study was considered for waiver.
Flash point:
The mean flash point of Tetraoctylammonium bromide (CAS No. 14866-33-2) is 101°C at 967.0 hPa.
Autoflammability:
Tetraoctylammonium bromide did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that Tetraoctylammonium bromide is not auto-flammable.
Flammability:
Tetraoctylammonium bromide does not indicate any ignition when the flame of bunsen burner having temperature of approximately 950°C is brought in contact with it. Thus it can be concluded that Tetraoctylammonium bromide is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus Tetraoctylammonium bromide was considered non-flammable for chemical safety assessment.
Explosiveness:
The study does not need to be conducted because there are no chemical groups present in the molecule which are associated with explosive properties.
Oxidising properties:
The study does not need to be conducted because there are no chemical groups present in the molecule which are associated with oxidizing properties and hence the classification procedure does not need to be applied.
pH:
The pH of 1% w/v dispersion of Tetraoctylammonium bromide (CAS No14866-33-2) was 3.87 at 25 °C.
Additional information
Appearance / physical state / colour:
Based on available data from obtained reports, the appearance of Tetraoctylammonium bromide was observed as off white colored solid powder compound.
Melting point/ Freezing point:
The melting point determination of Tetraoctylammonium bromide (CAS No. 14866-33-2) was done following OECD Guideline 102 and according to the metal block capillary method.
The test was conducted in replicates and mean melting temperature range was determined to be 91°C - 95°C at 967.6 hPa.
Boiling point:
The boiling point determination of Tetraoctylammonium bromide (CAS No. 14866-33-2) was done following OECD Guideline 103 and according to the method of Siwoloboff. The test was conducted in replicates and mean boiling point was determined to be 209.3°C at 966.8
hPa.
Density:
The density of test item Tetraoctylammonium bromide (CAS No. 14866-33-2) was determined following OECD Guideline 109 and according to the method Adapted from ASTM D854-02 using glass pyknometer. The mean density of test item was determined to be 0.7898 g/cm³ at 20 °C and 968.1 hPa.
Particle size distribution (Granulometry):
The particle size distribution of Tetraoctylammonium bromide (CAS No. 14866-33-2 ) was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined in the range of 150 micron to 75 micron.
Vapour pressure:
Modified Grain method (Mean of Antoine and Modified Grain methods) was used to estimate the vapour pressure of substance Tetraoctylammonium bromide using MPBPVP v1.43 of EPI SUITE.
The estimated vapour pressure of substance Tetraoctylammonium bromide at 25deg C was 0.000000000000141 Pa.
Partition coefficient:
The octanol water partition coefficent (log Pow) of chemical Tetraoctylammonium Bromide (CAS no. 14866-33-2) was estimated to be 4.47 at temparature 25oC. By this log Pow value chemical Tetraoctylammonium Bromide is considered as hydrophilic in nature.
Water solubility:
The water solubility determination of Tetraoctylammonium bromide (CAS No. 14866-33-2) was done as per the OECD guideline 105 by spectrophotometric analytical method as per OECD 101. The solubility of Tetraoctylammonium bromide (14866-33-2 ) in water was determined to be 28.984 mg/L at 30°C. Hence the substance Tetraoctylammonium bromide was considered to be slightly soluble in water.
Surface tension:
In accordance with column 2 of Annex VII of the REACH regulation, the study need only be conducted if surface activity is a desired property of the chemical. The Tetraoctylammonium bromide (14866-33-2) is used frequently as a laboratory chemical, Synthesis of substances, etc. For this use, surface activity is not an important property. Hence this study was considered for waiver.
Flash point:
The flash point determination of Tetraoctylammonium bromide (CAS No. 14866-33-2) was done following closed cup method using Pensky-Martens flash point apparatus. The test was conducted in replicates and mean flash point was found to be 101°C at 967.0 hPa.
Autoflammability:
Tetraoctylammonium bromide did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that Tetraoctylammonium bromide is not auto-flammable.
Flammability:
Tetraoctylammonium bromide does not indicate any ignition when the flame of bunsen burner having temperature of approximately 950°C is brought in contact with it. Thus it can be concluded that Tetraoctylammonium bromide is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus Tetraoctylammonium bromide was considered non-flammable for chemical safety assessment.
Explosiveness:
The study does not need to be conducted because there are no chemical groups present in the molecule which are associated with explosive properties.
Oxidising properties:
The study does not need to be conducted because there are no chemical groups present in the molecule which are associated with oxidizing properties and hence the classification procedure does not need to be applied.
pH:
The pH determination of Tetraoctylammonium bromide (CAS No 14866-33-2) was done following OECD guideline 122. pH of 1% w/v dispersion was measured with the help of pH meter and it was observed to be 3.87at 25 °C.
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