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Physical & Chemical properties

Storage stability and reactivity towards container material

Administrative data

Endpoint:
storage stability and reactivity towards container material
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with generally accepted scientific standards and described in sufficient detail

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011
Report date:
2011

Materials and methods

Principles of method if other than guideline:
3 different batches of Preventol ON extra were tested for storage stability for a period of 2 years.
The content of OPP-Na was measured currently after production and after 2 years of storage.
250 g samples were stored for 2 years in the dark at room temperature in polyethylene bags which were inserted in tinplate boxes.
Specification characteristic: ≥ 97,0% 2-hydroxybiphenyl, sodium salt x 4 H2O
GLP compliance:
no
Type of method:
testing for reactivity towards container material

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium 2-biphenylate
EC Number:
205-055-6
EC Name:
Sodium 2-biphenylate
Cas Number:
132-27-4
Molecular formula:
C12H9NaO
IUPAC Name:
sodium 2-biphenylate
1
Chemical structure
Reference substance name:
Water
EC Number:
231-791-2
EC Name:
Water
Cas Number:
7732-18-5
Molecular formula:
H2O
IUPAC Name:
water
Details on test material:
Batch No.: CHN0019, CHN0020, CHN0021

Results and discussion

Results:
Stability of container material:
The polyethylene packaging material did not show any damage or change after the storage period.
Furthermore the production unit cerifies that for more than 20 years of packaging Preventol ON extra in 25 kg polyethylen bags the packaging matrial has proofed to be stable to the product for long term storage.

Applicant's summary and conclusion

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