Reaction product of 3,5,5-trimethyl-hexanoic acid and 2-methylpropanoic acid and pentaerythritol

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

15 July 2011 - 09 February 2012

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

Study conducted in accordance with International guidelines and in accordance with GLP. All guideline validity criteria were met.

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Version / remarks:

02 October 2009

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Version / remarks:

Commission Regulation (EC) No 440/2008 laying down test methods pursuant to Regulation (EC) No 1907/2006 of the European Parliament and of the Council on the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

pycnometer method

Specific details on test material used for the study:

RADIOLABELLING INFORMATION (if applicable)
- Radiochemical purity: N/A
- Specific activity: N/A
- Locations of the label: N/A
- Expiration date of radiochemical substance: N/A

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Room temperature in the dark and under nitrogen.
- Stability under test conditions: Assumed stable.
- Solubility and stability of the test substance in the solvent/vehicle: N/A, applied as supplied.
- Reactivity of the test substance with the solvent/vehicle of the cell culture medium: N/A

TREATMENT OF TEST MATERIAL PRIOR TO TESTING
- Treatment of test material prior to testing: N/A
- Preliminary purification step (if any): N/A
- Final dilution of a dissolved solid, stock liquid or gel: N/A
- Final preparation of a solid: N/A

FORM AS APPLIED IN THE TEST (if different from that of starting material) : Applied as supplied.

TYPE OF BIOCIDE/PESTICIDE FORMULATION (if applicable) : N/A

OTHER SPECIFICS: No

Key result

Type:

relative density

Density:

0.99 other: N/A

Temp.:

20 °C

Table 1       Results

Parameter	Determination 1	Determination 2
w1	22.61761	21.95510
w2	48.08514	47.40791
w3	47.90700	47.20901
W1	25.46753	25.45281
W2	25.28939	25.25391
DT4	0.99	0.99
Mean DT4	0.99

w1: mass of pycnometer empty (g)

w2: mass of pycnometer + water (g)

w3: mass of pycnometer + test item (g)

W1: mass of water to fill pycnometer (g) i.e. w2 – w1

W2: mass of test item to fill pycnometer (g) i.e. w3 – w1

DT4: relative density of the test item at the test temperature (20 ºC) compared to water at 4 ºC i.e. W2 / W1 x 0.998 (i.e. density of water at 20 ºC)

Conclusions:

The relative density of Tetraesters of pentaerythritol with 2- methylpropanoic acid and 3,5,5-trimethyl-hexanoic acid was found to be 0.99 at 20 ºC.

Executive summary:

OECD 109 (2012) - The relative density of Tetraesters of pentaerythritol with 2-methylpropanoic acid and 3,5,5-trimethyl-hexanoic acid was determined relative to purified water using a pycnometer at 20 °C. A clean, dry pycnometer was accurately weighed then filled to the limits of its capacity with pure water. It was then carefully stoppered without trapping air, dried and re-weighed. The procedure was repeated with the same pycnometer using test substance. Two tests were performed concurrently using separate pycnometers.

The relative density of Tetraesters of pentaerythritol with 2-methylpropanoic acid and 3,5,5-trimethyl-hexanoic acid was calculated to be 0.99 at 20 ºC.

Description of key information

Relative density = 0.99 at 20 ºC; OECD 109; Sydney, P. (2012)

Key value for chemical safety assessment

Relative density at 20C:

0.99

Additional information

OECD 109 (2012) - The relative density of Tetraesters of pentaerythritol with 2-methylpropanoic acid and 3,5,5-trimethyl-hexanoic acid was determined relative to purified water using a pycnometer at 20 °C. A clean, dry pycnometer was accurately weighed then filled to the limits of its capacity with pure water. It was then carefully stoppered without trapping air, dried and re-weighed. The procedure was repeated with the same pycnometer using test substance. Two tests were performed concurrently using separate pycnometers.

The relative density of Tetraesters of pentaerythritol with 2-methylpropanoic acid and 3,5,5-trimethyl-hexanoic acid was calculated to be 0.99 at 20 ºC.