Alcohols, C12-14, ethoxylated

Boiling point

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

weight of evidence

Study period:

16 - 23 SEP 2009

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

GLP compliance:

yes (incl. QA statement)

Type of method:

method according to Siwoloboff

Boiling pt.:

540.1 K

Atm. press.:

101.4 kPa

Remarks on result:

other: The temperature was given with 540.1 +/- 0.2 K at 101.4 kPa

Boiling pt.:

266.95 °C

Atm. press.:

101.4 kPa

The preliminary study and measurements were performed under atmospheric pressure of 101.4 kPa. The preliminary study was carried out in order to determine the boiling temperatuer range for the test item (523.2 - 563.2 K). The average value of an initial boiling point was found at approximately 540.1 K when heated at 10.0 K per minute starting at 373.2 K and then at about 10.0 K below the expected boiling temperature, the heat was reduced to 3.0 K/min. At temperatures showed in table below the string of bubbles stops and fluid suddenly rises in the boiling tube.

The measuring accuracy was addicted to BÜCHI Melting Point 545 apparatus accuracy (measuring accuracy up to 373.2 K +/- 0.3 K; up to 523.2 K +/- 0.5 K and up to 673.2 K +/- 0.8 K) and equal to 0.8 K.

The values of an initial boiling point:

Sample	Boiling point [K]	Atmospheric pressure [kPa]
1	540.0	101.4
2	540.2	101.4
Average values	540.1	101.4

Reference 2

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

weight of evidence

Study period:

24 SEP 2009

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

GLP compliance:

yes (incl. QA statement)

Type of method:

method according to Siwoloboff

Boiling pt.:

>= 563 - <= 565 K

Atm. press.:

102 kPa

Boiling pt.:

>= 289.85 - <= 291.85 °C

Atm. press.:

102 kPa

The measuring accuracy was addicted to BÜCHI Melting Point 545 apparatus accuracy (measuring accuracy up to 373.2 K +/- 0.3 K; up to 523.2 K +/- 0.5 K and up to 673.2 K +/- 0.8 K) and equal to +/- 0.8 K.

The values of an initial boiling point of test item:

Sample	Boiling point [K]	Atmospheric pressure [kPa]
1	564.2	102.0
2	564.6	102.0
3	562.8	102.0
Average values	564.0	102.0

Reference 3

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

weight of evidence

Study period:

16 DEC 2009

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

test procedure in accordance with national standard methods with acceptable restrictions

Qualifier:

according to guideline

Guideline:

other: ASTM D 737-76

GLP compliance:

no

Type of method:

differential scanning calorimetry

Boiling pt.:

298 - 400 °C

Atm. press.:

101 kPa

Description of key information

266.95 - 400 °C at 1010 - 1020 hPa (EU A.2, ASTM D 737-76)

Key value for chemical safety assessment

Boiling point at 101 325 Pa:

267 °C

Additional information

The data refer to measurements of substances of various single degrees of ethoxylation (EO = 2 and EO = 1). For a general ethoxylation degree of < 2.5 EO, a weight of evidence approach is applied.

There is a correlation between the degree of ethoxylation and the boiling temperature. With increasing degree of ethoxylation the boiling temperature decreases.