Rhamnolipids: fermentation products of glucose with Pseudomonas putida, Pseudomonadaceae

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2016-09-22

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Version / remarks:

revised 1997

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Version / remarks:

2008

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

air comparison pycnometer (for solids)

Key result

Type:

relative density

Density:

1.21 other: dimensionless

Temp.:

20 °C

The mean density of the test item at 20°C was 1.20573 g/cm³. The relative density D is calculated by dividing the density of the test item by the density of water at 4°C (0.9999750 g/cm³). Th erelative density was 1.21.

Conclusions:

The present study was conducted to determine the relative density of Rhamnolipid. The relative density was measured temperature of 20°C ± 0.01°C using a calibrated gas comparison pycnometer and subsequently calculated to be 1.21.
.

Executive summary:

In the present study according to OECD Test Guideline 109 (2012) and Regulation EC No. 440/2008 Method A.3. the relative density D of Rhamnolipid was determined at 20°C ± 0.01°C (compared to water at 4°C) and was found to be D = 1.21. For the determination of the relative density a comparison pycnometer was used.

Key value for chemical safety assessment

Relative density at 20C:

1.21