Dihydrogen hexahydroxyplatinate, compound with 2-aminoethanol (1:2)

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

differential scanning calorimetry

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Expiration date of the lot/batch: August 04, 2020
- Purity test date: Quality certificate dated August 04, 2017

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Ambient temperature (10°C to 30°C)

FORM OF TEST MATERIAL
- Purity: 15.06 % w/w platinum
- Form: Liquid
- Appearance: Reddish liquid

Boiling pt.:

100.5 °C

Atm. press.:

1 013.3 hPa

Remarks on result:

other: The boiling was incomplete (mass loss: approximately 80 %).

An endothermal effect, after melting, was observed in the temperature range of 95 to 135°C. No further endothermic or exothermic effects were observed up to the final temperature (200°C). The mass loss after the DSC measurements amounted to approximately 80 %. After the test, only a black residue was observed.

Table 1: Boiling point (DSC measurement)

Ident No.	Test item / mg	Starting temperature / °C	Final test temperature / °C	Temperature range (endo-thermal) / °C	Onset (boiling) / °C	Crucible	Observations after the measurement
36645	14.47	-50	200	95 to 135	100.36	Aluminium with a hole	Black residue; mass loss: 80 %
36659	17.11	-50	200	95 to 135	100.81	Aluminium with a hole	Black residue; mass loss: 79 %

Table 2: Correction of the boiling point to standard atmospheric pressure

Ident No.	Onset / °C	Ambient pressure / hPa	F (Group 6)	Dt / °C	Boiling point at 1013.3 hPa / °C
36645	100.36	1019.1	5.671	-0.166	100.19
36659	100.81	1015.8	5.672	-0.073	100.74

Conclusions:

The test item had a mean boiling point of 100.5°C at 1013.3 hPa. Boiling was incomplete (mass loss 80%).

Executive summary:

Nau (2017) is a GLP-compliant study following OECD guideline 103 and EU method A2. It is reliable without restrictions and can be used as the key study for this endpoint. Boiling point was determined using differential scanning calorimetry and corrected to atmospheric pressure. The test item had a mean boiling point of 100.5°C at 1013.3 hPa. Boiling was incomplete (mass loss 80%).

Description of key information

The test item had a mean boiling point of 100.5°C at 1013.3 hPa. Boiling was incomplete (mass loss 80%).

Key value for chemical safety assessment

Boiling point at 101 325 Pa:

100.5 °C

Additional information

Nau (2017) is a GLP-compliant study following OECD guideline 103 and EU method A2. It is reliable without restrictions and can be used as the key study for this endpoint. Boiling point was determined using differential scanning calorimetry and corrected to atmospheric pressure. The test item had a mean boiling point of 100.5°C at 1013.3 hPa. Boiling was incomplete (mass loss 80%).