β,β-carotene

Density

Administrative data

Endpoint:

density, other

Type of information:

experimental study

Adequacy of study:

key study

Study period:

The study was carried out on the 26 July 2005

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

comparable to guideline study with acceptable restrictions

Data source

Reference

Reference Type:

other company data

Title:

Unnamed

Year:

2005

Report date:

2005

Materials and methods

Test guideline

Qualifier:

no guideline followed

Principles of method if other than guideline:

The density of the substance was determined using a Micromeritics Accu Pyc 1330 He-gas pycnometer.
- Principle of test: Determination of the bulk density of the test material at room temperature
- Short description of test conditions: The test material was determined using a Micromeritics Accu Pyc 1330 He-gas pycnometer.
The test material had the following purity:
all-trans-β-carotene: 89.6%
Β-carotene: 98.2% (Σ cis + trans)

GLP compliance:

not specified

Type of method:

pycnometer method

Test material

Test material information

Constituent 1

Reference substance name:

β,β-carotene

EC Number:

230-636-6

EC Name:

β,β-carotene

Cas Number:

7235-40-7

Molecular formula:

C40H56

IUPAC Name:

β,β-carotene

Details on test material:

- Name of test material (as cited in study report): ß-Carotene crystalline
- Physical state: crystalline solid
- Analytical purity: 97.77%
- Lot/batch No.: WC00504271
- Expiration date of the lot/batch: July 2007 (in an unopened ampoule)
- Stability under test conditions: Light-sensitive
- Storage condition of test material: At room temperature in the unopened ampoule; in the freezer under argon when not stored in the ampoule. As the test item is light-sensitive, all test item handling was performed under red light.

Results and discussion

Density

Key result

Type:

density

Density:

1.001 g/cm³

Temp.:

20 °C

Applicant's summary and conclusion

Conclusions:

ß-Carotene d = 1.001 ± 0.002 g/cm3