3',6'-bis(diethylamino)spiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2017-01-31 – 2017-01-31

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Justification for type of information:

Experimental result performed using standard methods of analysis

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling point/boiling range)

Principles of method if other than guideline:

The boiling point of a liquid is the temperature at which that liquid is converted to a gaseous state. It can be defined as the temperature at which the vapour pressure of the liquid becomes equal to the pressure at the surface of the liquid.

GLP compliance:

no

Type of method:

method according to Siwoloboff

Specific details on test material used for the study:

- Name of the test material: 3',6'-bis(diethylamino)spiro[isobenzofuran-1(3H),9'-
[9H]xanthene]-3-one
- Molecular formula: C28H30N2O3
- Molecular weight: 442.556 g/mol
- Substance type: Organic
- Smiles: C12(c3c(Oc4c1ccc(c4)N(CC)CC)cc(N(CC)CC)cc3)c1c(cccc1)C(O2)=O

Key result

Boiling pt.:

> 340 °C

Atm. press.:

978.4 hPa

Remarks on result:

other: no other details available

Method Details	Observations	Remarks if, any
Guideline	OECD 103
Method	Method according to Siwoloboff
Principle of Boiling point test	A sample is heated gradually in a tube which is immersed in a liquid bath. The sample tube is held in close contact with a thermometer and it contains a boiling capillary which is fused about1 cm above its lower end. Upon approach of the boiling temperature bubbles emerge rapidly from the lower open end of the capillary. The boiling temperature is that temperature at which, on momentary cooling, the string of bubbles stops and liquid suddenly rises in the capillary.	The substance melts and forms sticky texture ,without producing string of bubbles and rise in capillary upto 340°C, inferring b.p. to be greater than 340°C.
Quantity of chemical used	g/ml	1 ml
Nature of the Bath taken	Oil bath Water bath	OIL
	If oil bath is used, specify Liquid paraffin Silicone oil	SILICON
Atmospheric pressure	hPa	978.4
mean Boiling point (°C) (RESULT)	°C	greater than 340

Conclusions:

The boiling point determination of 3',6'-bis(diethylamino)spiro[isobenzofuran-1(3H),9'- [9H]xanthene]-3-one (CAS No. 509-34-2) was done following OECD Guideline 103 and according to the method of Siwoloboff. The substance melts and forms sticky texture ,without producing string of bubbles and rise in capillary upto 340°C, inferring b.p. to be greater than 340°C at 978.4 hPa.

Executive summary:

The boiling point determination of 3',6'-bis(diethylamino)spiro[isobenzofuran-1(3H),9'- [9H]xanthene]-3-one (CAS No. 509-34-2) was done following OECD Guideline 103 and according to the method of Siwoloboff. The substance  melts and forms sticky texture ,without producing string of bubbles and rise in capillary upto 340°C, inferring b.p. to be greater than 340°C at 978.4 hPa.

Description of key information

The boiling point determination of 3',6'-bis(diethylamino)spiro[isobenzofuran-1(3H),9'- [9H]xanthene]-3-one (CAS No. 509-34-2) was done following OECD Guideline 103 and according to the method of Siwoloboff. The substance  melts and forms sticky texture ,without producing string of bubbles and rise in capillary upto 340°C, inferring b.p. to be greater than 340°C at 978.4 hPa.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:

340 °C

Additional information

The boiling point determination of 3',6'-bis(diethylamino)spiro[isobenzofuran-1(3H),9'- [9H]xanthene]-3-one (CAS No. 509-34-2) was done following OECD Guideline 103 and according to the method of Siwoloboff. The substance  melts and forms sticky texture ,without producing string of bubbles and rise in capillary upto 340°C, inferring b.p. to be greater than 340°C at 978.4 hPa.

Other supporting study from authoritative database suggests that the boiling point of chemical 3',6'-bis(diethylamino)spiro[isobenzofuran-1(3H),9'- [9H]xanthene]-3-one is reported to be 637.2±55.0 °C at  760 Torr pressure.

As the data from lab has K1 reliability and the test was performed using OECD guidelines which has the value of boiling point as greater than 340 degree C at 978.4 hPa,thus considered as key study for the chemical safety assessment