2,6-dimethylpyridine

Density

Link to relevant study record(s)

Reference

Endpoint:

density, other

Remarks:

density

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Justification for type of information:

Experimental test result performed using standard test guidelines

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Principles of method if other than guideline:

The density of test item 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.

GLP compliance:

no

Type of method:

pycnometer method

Key result

Type:

density

Density:

0.92 g/cm³

Temp.:

20 °C

Remarks on result:

other: No other detail available

OBSERVATIONS

The mean density of liquid test chemical is determined by recording weights of empty pycnometer and apparent weight of test chemical and water at required test temperature of 20 °C with respective atmospheric pressure. The density is calculated using Buoyancy correction value. The readings are taken in replicate and mean density is reported.

Sr No	Method Details		Observed Values
			1st Observation	2nd Observation
1	Test temperature	(°C)	20	20
2	Atmospheric pressure	(hPa)	972.0	973.2
3	Weight of empty dry pycnometer(X)	g	29.379	29.822
4	Weight of pycnometer + test chemical(Y)	g	75.031	75.478
5	Apparent mass of test chemical(M1)	(M1 = Y - X)	45.652	45.656
6	Weight of pycnometer +  water(Z)	g	78.978	79.309
7	Apparent mass  of water(M2)	(M2  = Z - X)g	49.599	49.487
8	Buoyancy correction(A)	A=(*ρat × M2)	0.057	0.057
9	Density of water at test temperature	g/cm3 (ρtw)	0.9982	0.9982

ρat=density of air at 27°C and 760 mm Hg pressure= 0.001168 g/cm3

 

7. CALCULATIONS

For liquids:

Density = (M₁+A)  X   ρ_tw

                   (M₂₊A)

 

1^stcalculated density =( 45.652+0.057) X   0.9982 =0.9188

                                     ( 49.599+0.057)

 

2^ndcalculated density =(45.656+0.057) X   0.9982 = 0.9210

                                     (49.487+0.057)

 

Average density = (0.91885620670211+0.92101397949298)  /   2

 

1^stcalculated density	2^ndcalculated density
0.91885620670211	0.92101397949298
Average density	=0.92 g/cm^3

 

Where,

M₁= Apparent mass of test chemical

M₂= Apparent mass of water

A = Buoyancy correction (0.001168 g/cm³, when density of air at 27°C and 760 mm Hg pressure)

 ρ_tw= Density of water at test temperature

 

 

Conclusions:

The density of test item was determined following OECD Guideline 109 and according to theIS 4730 : 1994 (Reaffirmed 2010) – Method for Determination of Density of Liquids (First Revision) using glass pyknometer. The mean density of test item was determined to be 0.92 g/cm³ at 20°C and 973.3 hPa.

Executive summary:

The density of test item was determined following OECD Guideline 109 and according to theIS 4730 : 1994 (Reaffirmed 2010) – Method for Determination of Density of Liquids (First Revision) using glass pyknometer. The mean  density of test item  was determined to be 0.92g/cm³ at 20°C and 973.3 hPa.

Description of key information

The density of test item was determined following OECD Guideline 109 and according to theIS 4730 : 1994 (Reaffirmed 2010) – Method for Determination of Density of Liquids (First Revision) using glass pyknometer. The mean  density of test item  was determined to be 0.92 g/cm³ at 20°C and 973.3 hPa.

Additional information

The density of test item was determined following OECD Guideline 109 and according to theIS 4730 : 1994 (Reaffirmed 2010) – Method for Determination of Density of Liquids (First Revision) using glass pyknometer. The mean  density of test item  was determined to be 0.92 g/cm³ at 20°C and 973.3 hPa.

In support to this, data from handbooks and secondary databases,indicates the density of test chemical to be 0.92 g/cm3 at 20 degc .