disodium 4,4'-bis[(prop-2-enoyl)amino][1,1'-biphenyl]-2,2'-disulfonate

Boiling point

Administrative data

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

13 Mar - 20 Mar 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Cross-reference

Cross-reference 1

Reason / purpose for cross-reference:

reference to same study

Reference

Endpoint:

appearance / physical state / colour

Type of information:

experimental study

Adequacy of study:

key study

Study period:

13 Mar - 20 Mar 2017

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Visual observation of test item

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

no guideline required

Principles of method if other than guideline:

Visual inspection of test item

GLP compliance:

yes (incl. QA statement)

Remarks:

Landesamt für Umwelt, Wasserwirtschaft und Gewerbeaufsicht, Mainz, Germany

Physical state at 20°C and 1013 hPa:

solid

Form:

solid

Colour:

white to beige

Substance type:

organic

Cross-reference 2

Reason / purpose for cross-reference:

reference to same study

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

13 Mar - 20 Mar 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

GLP compliance:

yes (incl. QA statement)

Remarks:

Landesamt für Umwelt, Wasserwirtschaft und Gewerbeaufsicht, Mainz, Germany.

Type of method:

capillary method

Atm. press.:

1 013 hPa

Decomposition:

yes

Decomp. temp.:

ca. 270 °C

Remarks on result:

other: test item decomposed before melting

Pre-test for melting range
Observations for pre-test for melting point

Observations	Temperature [°C]
Test item in aluminium block	19.9
Colour change visible from yellow to dark	Since 270
Colour slightly brown	340
Colour brown	350
Colour dark brown	380
Heating up to 400 °C. The test item was still solid and black. The sample contracted The test item decomposed.

 

In the pre-test, the test item showed signs of decomposition before melting indicated by colour change.

The study was terminated. The melting point of the test item could not be determined under these circumstances because of decomposition before melting.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2017

Report date:

2017

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

GLP compliance:

yes (incl. QA statement)

Remarks:

Landesamt für Umwelt, Wasserwirtschaft und Gewerbeaufsicht, Mainz, Germany.

Type of method:

method according to Siwoloboff

Test material

Test material information

Constituent 1

Reference substance name:

disodium 4-[(1-hydroxyprop-2-en-1-yl)amino]-4'-(prop-2-enamido)-[1,1'-biphenyl]-2,2'-disulfonate

EC Number:

812-549-0

Cas Number:

881539-89-5

Molecular formula:

C18H14N2Na2O8S2

IUPAC Name:

disodium 4-[(1-hydroxyprop-2-en-1-yl)amino]-4'-(prop-2-enamido)-[1,1'-biphenyl]-2,2'-disulfonate

Results and discussion

Boiling point

Decomposition:

yes

Remarks on result:

other: test item decomposed before boiling

Any other information on results incl. tables

Pre-test following Siwoloboff
Observations for pre-test following Siwoloboff

Observations	Temperature [°C]
Colourless condensate was observed, on the top test item (ca. 1 cm) appeared glassy, test item contracted	Since 120
Bubbles visible on upper layer (probably from condensate), below still solid	Since 130
Colour slightly yellow getting darker	260
Colour brown	340
Colour dark brown	360
Heating up to 400 °C. The test item was still solid and black. The sample contracted The test item decomposed.

In the pre-test, the test item showed signs of decomposition before boiling indicated by colour change. The study was terminated. The boiling point of the test item could not be determined under these circumstances because of decomposition before boiling.