N-(dimethylvinylsilyl)-1,1-dimethyl-1-vinylsilylamine

Melting point / freezing point

Link to relevant study record(s)

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2011-07-25

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study with acceptable restrictions

Remarks:

The study was conducted in accordance to an appropriate test method and in compliance with a known quality system (ISO 9001:2008).

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

GLP compliance:

no

Other quality assurance:

other: ISO 9001:2008

Type of method:

differential scanning calorimetry

Key result

Melting / freezing pt.:

< -100 °C

Atm. press.:

101.3 kPa

Test result

Test	Melting temperature (°C)
1	<-100
2	<-100
Mean value	<-100 (<173K)

Approximate accuracy of the instrument: ± 0.5 K (up to 600 K)

The DSC diagrams (attached) show no exothermic or endothermic peak in the temperature range between –100°C (173 K) and +25°C (298 K). Therefore, a melting temperature or change in the structure of the substance must be at less than –100°C (< 173 K).

Additionally, the liquid test substance was cooled in a test glass with a mixture of dry ice and isopropanol to –70°C. Thereby no visible change occurred in the physical state of the test substance.

There are no other thermal effect up till maximum temperature of 25°C.

Conclusions:

A melting temperature of <-100°C at 1013 hPa was determined for the substance using OECD 102 and in compliance with a known quality system (ISO 9001:2008). The result is considered to be reliable.

Description of key information

Melting point: <-100°C at 1013 hPa (OECD 102)

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

-100 °C

Additional information

A melting temperature value of <-100°C (<173±0.5 K) at 1013 hPa was obtained for the submission substance using Differential Scanning Calorimetry (DSC) in accordance with OECD Test Guideline 102 and in compliance with a known quality system (ISO 9001:2008). At the temperature range used during the study, -100°C (173 K) to +25°C (298 K), no exothermic or endothermic peaks were observed. The melting point was therefore reported as <-100°C (173 K).