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Physical & Chemical properties

Density

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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Test procedure in accordance with national standard methods (OECD) without GLP.
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
GLP compliance:
no
Type of method:
pycnometer method
Remarks:
Digital density meter
Specific details on test material used for the study:
- Name of test material (as cited in study report): Alcohols, C2-33, manuf. of, by-products from overheads
- Substance type: Product, HF-1000
- Physical state: clear colourless liquid
- Odour: oily/solvent
- Lot/batch No.: 1881046
Type:
relative density
Density:
0.8
Temp.:
20 °C

Measurements: (repeat determination)

SUBSTANCE USED FOR CALIBRATION: distilled water

DENSITY (THEORY) at 20 °C (X): 0.99821 g/ml

DENSITY of water at 0 °C (Y): 1 g/ml

Test 1:

Weight of flask (A): 20.5949 g

Weight of flask + water (B): 45.1166 g

Weight of flask (A1): 20.5950 g

Weight of flask + test substance (C): 40.2162 g

Test 2:

Weight of flask (A): 22.7487 g

Weight of flask + water (B): 47.6116 g

Weight of flask (A1): 22.7488 g

Weight of flask + test substance (C): 42.6447 g

Calculations:

Volume of pycnometer [ml]: V = (B-A)/X

Density of test substance [g/ml]: D1 = (C-A1)/V

Relative density = D1/Y

Results:

Test 1:

Volume of flask (V): 24.5657 ml

Density of test substance (D1): 0.7987 g/ml

Relative density (D1/Y): 0.7987

Test 2:

Volume of flask (V): 24.9075

Density of the test substance (D1): 0.7988 g/ml

Relative density (D1/Y): 0.7988

Sop 60.00 quotes a confidence interval, taken from historical data, of +/- 0.3%.

This equates to +/- 0.0024 for a value of 0.80. The difference between the duplicate values is less than this and therefore accetable.

A mean relative density will be reported as 0.80 +/- 0.01.

Conclusions:
Average relative density: 0.80
Executive summary:

Hydrocarbons, C12-C16, n-alkanes, isoalkanes, alkenes is measured according to OECD 109.

The relative density was determind to be 0.80 at 20 °C.

Description of key information

Key value for chemical safety assessment

Relative density at 20C:
0.8

Additional information

The relative density at 20°C was measured in a reliable study.