Oxirane, 2-methyl-, (2R)-

Density

Administrative data

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2002

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: The result was obtained from a collection of reliable data which has been subject to peer-review and in which the original data sources are traceable.

Data source

Reference

Reference Type:

review article or handbook

Title:

Unnamed

Year:

2002

Materials and methods

Principles of method if other than guideline:

pycnometer method, no details given on test methods.

GLP compliance:

no

Type of method:

other:

Test material

Test material information

Constituent 1

Reference substance name:

propylene oxide

IUPAC Name:

propylene oxide

Constituent 2

Reference substance name:

Methyloxirane

EC Number:

200-879-2

EC Name:

Methyloxirane

Cas Number:

75-56-9

IUPAC Name:

2-methyloxirane

Details on test material:

>99.8 mole % pure, containing 0.12 mole % water;
Test material was racemate from both R(+) and S(-) propylene oxide. This endpoint is not measured / determined with enantio-selective sensors.
Therefore the R(+) value is identical to the racemate endpoint.

Results and discussion

Density

Type:

relative density

Density:

0.831 g/cm³

Temp.:

20 °C

Any other information on results incl. tables

The density of propylene oxide, (>99.8 mole % pure, containing 0.12 mole % water), was determined by pycnometer to be 831 kg.m-3 at 20°C (BASF, 1977b). This is equivalent to a relative density (D4 20) of 0.831 and is in close agreement with the value of 0.8305 (Jefferson Chemicals, 1960) also determined by pycnometer.

Applicant's summary and conclusion

Conclusions:

A density value of 0.831 g/cm³ is reported at 20°C in a collection of reliable data which has been subject to peer-review and in which the original data sources are traceable. The result is considered to be reliable.