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Density

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Reference
Endpoint:
density, other
Remarks:
density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
02-12-2017 – 02-12-2017
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 andaccording to the Indian standard method for determination of density of liquids [IS 4730:1994 (Reaffirmed 2010)].
GLP compliance:
no
Type of method:
pycnometer method
Specific details on test material used for the study:
- Name of test material: 3-(5,5,6-trimethylbicyclo[2.2.1]hept-2-yl)cyclohexan-1-ol
- IUPAC name: 3-(5,5,6-Trimethylbicyclo[2.2.1]hept-2-yl)cyclohexan-1-ol
- Molecular formula: C16H28O
- Molecular weight: 236.396 g/mole
- Smiles :O[C@@H]1CCC[C@@H]([C@@H]2[C@@H]3C[C@@H](C(C)(C)[C@@H]3C)C2)C1
- Inchl: 1S/C16H28O/c1-10-14-8-12(16(10,2)3)9-15(14)11-5-4-6-13(17)7-11/h10-15,17H,4-9H2,1-3H3
- Substance type: Organic
- Physical state: viscous liquid
Key result
Type:
density
Density:
0.978 g/cm³
Temp.:
20 °C
Remarks on result:
other: at 976.7 hPa

TEST ITEM DESCRIPTION AND RESULTS

FOR SOLIDS:

By Pour Density and Tapped Density Method:

Sr.

no.

Method Details

Observations

Remarks if, any

1

Guideline

OECD 109

1st

Reading

2nd Reading

 

 

2

Method

IS 4730 : 1994 (Reaffirmed 2010) –

Method for Determination of Density

of Liquids (First Revision)

 

 

3

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 isobtained by dividing the mass ofmaterial by its volume.

 

 

4

Test

temperature

 

°C

20°C

20°C

 

5

Atmospheric

pressure

(hPa)

976.4

977.0

 

6

Weight of empty dry

Pyknometer(X)

g

29.616

30.058

 

7

Weight of pyknometer +

test item(Y)

g

77.917

80.182

 

8

Apparent mass of test

item(M1)

(M1 = Y - X)g

48.301

50.124

 

9

Weight of pyknometer +

water(Z)

g

78.803

81.315

 

10

Apparent mass of water

(M2)

(M2 = Z - X)g

49.187

51.257

 

11

Buoyancy correction(A)

A=(*ρat × M2)

0.0574

0.0598

 

12

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

**Density of water referred from the Table 1 of the was method.

CALCULATIONS:

FOR LIQUIDS

Density =(M1+A) X ρtw

                 (M2+A) 

 

1st calculated density

2nd calculated density

48.3584

____________ X 0.9982 = 0.9802 g/cm³

49.2444

50.1838

____________ X 0.9982 = 0.9761 g/cm³

51.3168

Average density

= 0.9781 g/cm³

 

Conclusions:
The mean density of test chemical was determine to be 0.9781 g/cm³ at 20°C and 976.7 hPa.
Executive summary:

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 pyknometer. The mean density of test item was determine to 0.9781 g/cm³ at 20°C and 976.7 hPa.

Description of key information

The mean density of test chemical was determine to be 0.9781 g/cm³ at 20°C and 976.7 hPa.

Key value for chemical safety assessment

Relative density at 20C:
0.978

Additional information

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 pyknometer The mean density of test item was determine to 0.9781 g/cm³at 20°C and 976.7 hPa.

Other supporting data from another experimental report also determined the density of test chemical by the mass by volume method as 0.985 g/cm3 at room temperature of 37°C, closer to the selected key study value.