3,5-di-tert-butyl-4-hydroxybenzyl alcohol

Appearance / physical state / colour

Administrative data

Endpoint:

appearance / physical state / colour

Type of information:

experimental study

Adequacy of study:

key study

Study period:

13 Jul 2016

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Basic data given (comparable to guidelines/standards)

Cross-reference

Reason / purpose for cross-reference:

reference to other study

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

13 Jul 2016

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

GLP guideline study

Reason / purpose for cross-reference:

reference to other study

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

Version / remarks:

adopted in 1995

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Deviations:

no

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.7220 (Boiling Point / Boiling Range)

Version / remarks:

adopted in 1996

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Remarks:

Hess. Ministerium für Umwelt, Energie, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany

Type of method:

differential scanning calorimetry

Specific details on test material used for the study:

Storage conditions: Ambient temperature (< 40 °C), keep container tightly closed, protected from sunlight

Boiling pt.:

>= 291 - <= 294 °C

Atm. press.:

1 013 hPa

Results
A first endothermic effect could be seen in the range of 110 to 150 °C (melting) and a second in the range of 210 to 350 °C (boiling).

 

Table 1 – DSC measurement results

Sample weight [mg]	Onset of effect [°C]	Range of effect [°C]	Weight loss [mg]	Atmospheric pressure [hPa]
11.83	140.69 290.90	110 – 150 (endo) 210 – 350 (endo)	11.70	1001.3
11.89	140.94 293.93	130 – 150 (endo) 210 – 350 (endo)	11.85

 

For the correction of the boiling temperature to normal pressure, the test item was assigned to chemical group 5 (e.g. benzyl alcohol). A correction value φ = 5.9 was used for a temperature of 290 °C.

The lowest measured onset temperature is corrected to the normal pressure to be 291.39 °C and the highest onset temperature to be 294.42 °C.

Therefore, the test item has a boing range of 291 to 294 °C under atmospheric pressure (1013 hPa).

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2016

Report date:

2016

Materials and methods

Test guideline

Qualifier:

no guideline required

Principles of method if other than guideline:

Visual observation of the test item

GLP compliance:

no

Test material

Test material information

Constituent 1

Reference substance name:

3,5-di-tert-butyl-4-hydroxybenzyl alcohol

EC Number:

201-815-6

EC Name:

3,5-di-tert-butyl-4-hydroxybenzyl alcohol

Cas Number:

88-26-6

Molecular formula:

C15H24O2

IUPAC Name:

2,6-Di-tert-butyl-4-(hydroxymethyl)phenol

Specific details on test material used for the study:

Storage conditions: Ambient temperature (< 40 °C), keep container tightly closed, protected from sunlight

Results and discussion

Physical state at 20°C and 1013 hPa:

solid

Form / colour / odour

Form:

solid: particulate/powder

Remarks:

crystalline powder

Colour:

pale yellow

Substance type:

organic

Any other information on results incl. tables

The test item has a boiling range from 291 °C to 294 °C at atmospheric pressure (1013 hPa). Therefore, at ambient conditions, the test item is solid.