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Diss Factsheets

Administrative data

Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Remarks:
The appearance of the test item is described in a reliable study report on the physical-chemical properties of the substance. Since no guideline was followed and no details on the methods are given, the description is considered as reliable with restrictions.
Cross-reference
Reason / purpose for cross-reference:
reference to same study
Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
27 Dec 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose for cross-reference:
reference to same study
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling Point)
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
Version / remarks:
August 1996
GLP compliance:
yes (incl. QA statement)
Remarks:
National Good Laboratory Practice (GLP) Compliance Monitoring Authority (NGCMA), Department of Science and Technology, Government of India
Type of method:
method according to Siwoloboff
Boiling pt.:
239.4 °C
Atm. press.:
760 mm Hg

Boiling Point/Boiling Range Values of the test item

Atmospheric Pressure (760 mmHg)

Replication

Start Temperature of Bubble Initiation (°C)

Continuous String of Bubbles Observed at (°C)

Boiling Point

(°C)

Kelvin (K)

R1

235.3

238.9

239.0

512.15

R2

235.9

238.6

239.2

512.35

R3

235.6

239.4

239.9

513.05

Mean

239.4

512.52

Standard Deviation

0.5

0.5

 

Typical Calculation:

Boiling Point [in Kelvin (K)] = Observed Boiling Point (°C) + 273.15 = 239.0 + 273.15 = 512.15

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
The description of the physical state of the substance was based on a visual inspection of the substance at room temperature and normal pressure
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
4,4'-isopropylidenedi-o-cresol
EC Number:
201-240-0
EC Name:
4,4'-isopropylidenedi-o-cresol
Cas Number:
79-97-0
Molecular formula:
C17H20O2
IUPAC Name:
4,4'-isopropylidenedi-o-cresol

Results and discussion

Physical state at 20°C and 1013 hPa:
solid
Form / colour / odour
Form:
solid: particulate/powder
Colour:
white
Substance type:
organic

Applicant's summary and conclusion