Geranyl butyrate

Endpoint summary

Additional information

Appearance:

In an experiment conducted by SSS(Europe)AB,On the basis of physical observation ,the chemical geranyl butyrate was colorless to pale yellow liquid in appearance. Other supporitng studies from various reliable handbooks and review article also suggests that the chemical geranyl butyrate was Colorless to pale‐yellow colored liquid in appearance havingfresh, fruity, rose-like odor.

Freezing Point:

In an experiment conducted by SSS(Europe)AB,the Freezing point determination of geranyl butyrate (CAS No.106-29-6) was done using crushed ice and salt. No freezing was observed up to -11.14°C. Hence, the freezing point was inferred to be less than -11.14°C at 977.3 hPa.

Boiling Point:

In an experiment conducted by SSS(Europe)AB,the boiling point determination of geranyl butyrate (CAS No. 106-29-6) 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 150.8°C at 978.7 hPa. Other supporting studies from reliable sources such as handbook and review article suggests that the boiling point of chemicalGeranyl butyrate was determined to be in the range of 240 degree C to 350 degree C As the data from lab has K1 reliability and the test was performed using OECD guidelines which has the value of boiling point temperature as 150.8 degree C at 978.7 hpa,thus considered as key study for the chemical safety assessment.

Density:

The density of geranyl butyrate (CAS No. 106-29-6)was determined following OECD Guideline 109 and according to the IS 4730 : 1994 (Reaffirmed 2010) – Method for Determination of Density of Liquids (First Revision) using glass pyknometer. The mean density of is was determined to be 1.093 g/cm³at 20.2°C and 974.5 hPa. Other supporting studies from reliable handbook suggests that the density of chemical Geranyl butyrate was determined to be in the range of 0.889 -0.904 g/cm3. As the data from lab has K1 reliability and the test was performed using OECD guidelines which has the value of density as 1.093 g/cm3 at 20.2 degree C,thus considered as key study for the chemical safety assessment.

Particle Size Distribution:

In accordance with REACH Chapter R.7A Endpoint Specific Guidance, specifically R.7.1.14.1 Information requirements on granulometry, the granulometry study does not need to be conducted as the test substance, Geranyl butyrate is marketed or used in a non solid or granular form.The test substance, Geranyl butyrate is a colorless to pale-yellow liquid at room temperature and as such this study is not technically feasible.Hence this endpoint was considered for waiver.

Vapour Pressure:

Data from various modelling databases suggests that theestimated vapor pressure ofGeranyl butyrate was 0.00498 mm Hg =0.664 Pa at25°C

Partition coefficient:

Data from various databases suggests that the estimated log Pow of Geranyl butyrate was 5.46. Based on the value, it can be considered that Geranyl butyrate is hydrophobic in nature, which also supported by its low solubility in water. 

Water Solubility:

Data from various databases suggests that the estimated water solubility ofGeranyl butyratewas determined as 0.7127 mg/l at 25 deg C. This value suggests that Geranyl butyrate is insoluble- slighlty soluble in water.

Surface tension:

In accordance with column 2 of Annex VII of the REACH regulation, if the water solubility is below 1mg/l at 20°C the test does not need to be conducted. For the target chemical Geranyl butyrate (106-29-6) water solubility was estimated to be 0.7127 mg/l. Hence this study was considered for waiver.

Flash point:

Various studies for the Geranyl butyrate (106-29-6) were reviewed to summarize the following information: The flash point determination of geranyl butyrate (CAS No. 106-29-6) 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 97.6°C at 979.8hPa. Based on criteria mentioned in CLP regulation the chemical has flash point >than 60 degree C hence the geranyl butyrate (CAS No. 106-29-6) was considered to be non-flammable. From the available data from Sax’s Dangerous Properties of Industrial Materials, 12thEdition, the flash point of geranyl butyrate was determined to be 92.7778 degree C. As per the available data for flash point from laboratory report and handbook, the flash point value determined was in range from 92.7778 degree C to 97.6 degree C. As the data from lab has K1 reliability and the test was performed using OECD guidelines which has the value of flash point as 97.6 °C at 979.8hPa within the range thus considered as key study for the chemical safety assessment. Also based on criteria mentioned in CLP regulation the chemical has flash point >than 60 degree C hence the geranyl butyrate (CAS No. 106-29-6) was considered to be non-flammable.

Autoflammability:

3,7-dimethylocta-2,6-dien-1-yl butyrate did not catch fire on being exposed to air at room temperature of 27°C and atmospheric pressure of 966 hPa. This indicates that 3,7-dimethylocta-2,6-dien-1-yl butyrate is not auto-flammable.

Flammability:

3,7-dimethylocta-2,6-dien-1-yl butyrate 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 3,7-dimethylocta-2,6-dien-1-yl butyrate is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus 3,7-dimethylocta-2,6-dien-1-yl butyrate was considered non-flammable for chemical safety assessment.

Explosiveness:

The study doesnot need to be conducted since Geranyl butyrate doesnot contain any chemical groups which are associated with explosive properties. Hence this endpoint can be considered for waiver.

Oxidising Properties:

The study doesnot need to be conducted because there are no chemical groups present in Geranyl butyrate which are associated with oxidising properties , also the study doesnot need to be conducted since Geranyl butyrate is a liquid.Hence, this endpoint was considered for waiver.

pH:

The pH determination of test item geranyl butyrate (CAS No 106-29-6) was done following OECD guideline 122. pH of 1% w/v emulsion was measured with the help of pH meter and it was observed to be 7.40at 22 °C. Based on the result, the geranyl butyrate (CAS No 106 -29 -6) was considered to be neutral in nature.

Viscosity:

Kinematic viscosity (experimental) of geranyl butyrate( CAS No. 106-29-6)at 20°C and 40°C is 34.41 mm²/sec and 20.50 mm²/s,respectively. Dynamic viscosity (calculated) of geranyl butyrate( CAS No. 106-29-6)at 20°C and 40°C is 37.61 mPa.S and 22.40 mPa.S, respectively.