Octyl acetate

Density

Link to relevant study record(s)

Reference

Endpoint:

density

Remarks:

density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2017-01-03 – 2017-01-03

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Experimental result using standard methods of analysis

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Principles of method if other than guideline:

The density is calculated from the difference in weight between the full and empty pycnometer and its volume

GLP compliance:

no

Type of method:

pycnometer method

Type:

density

Density:

0.836 g/cm³

Temp.:

20 °C

Method Details		Observed Values
		1st Observation	2nd Observation
Guideline	OECD 109
Method	IS 4730 : 1994 (Reaffirmed 2010) – Method for Determination of Density of Liquids (First Revision)
Principle of Method	Determination of the mass at a given temperature of a volume of the material contained in a density bottle (pyknometer) and determination of the volume of the latter by determining the mass of the corresponding volume of water at the same temperature. The density is obtained by dividing the mass of material by its volume.
Test temperature	(°C)	20.5°C	20.0°C
Atmospheric pressure	(hPa)	974.5
Weight of empty dry pyknometer(X)	g	29.062	30.959
Weight of pyknometer + test item (Y)	g	72.394	74.656
Apparent mass of test item (M1)	(M1 = Y - X) g	43.332	43.697
Weight of pyknometer + water (Z)	g	80.852	83.160
Apparent mass of water (M2)	(M2 = Z - X) g	51.790	52.201
Buoyancy correction (A)	A = (*ρat × M2)	0.060	0.060
Density of water** at test temperature	g/cm³ (ρtw)	0.9982	0.9982

CALCULATIONS:

FOR LIQUIDS

Density = (M1+A)/ (M2+A) X ρtw

1st calculated density	2nd calculated density
(43.332 +0.060) ____________ X 0.9980 = 0.8353 g/cm3 g/cm³ (51.790+0.060)	(43.697+0.060) ____________ X 0.9982 = 0.8357 g/cm3 g/cm³ (52.201+0.060)
Average density	= 0.8355 g/cm³

Conclusions:

The density of octyl acetate (CAS No. 112-14-1)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 octyl acetate (CAS No. 112-14-1) is was determined to be 0.8355 g/cm³ at 20°C and 974.5 hPa.

Executive summary:

The density of octyl acetate (CAS No. 112-14-1)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 octyl acetate (CAS No. 112-14-1) is was determined to be 0.8355 g/cm³ at 20°C and 974.5 hPa.

Description of key information

The density of octyl acetate (CAS No. 112-14-1)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 octyl acetate (CAS No. 112-14-1) is was determined to be 0.8355 g/cm³ at 20°C and 974.5 hPa.

Key value for chemical safety assessment

Relative density at 20C:

0.836

Additional information

In an experiment conducted by SSS(Europe)AB,the density of octyl acetate (CAS No. 112-14-1)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 octyl acetate (CAS No. 112-14-1) is was determined to be 0.8355 g/cm³ at 20°C and 974.5 hPa.

Other supporting studies from various handbooks and authoritative database also suggests that the density of chemical was determined to be in the range of 0.865 g/cm3 to 0.8705 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 0.8355 g/cm3 at 20 degree C thus considered as key study for the chemical safety assessment.