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Physical & Chemical properties

Boiling point

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Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: according to ASTM D7169 but no description just results given
Qualifier:
according to guideline
Guideline:
other: ASTM D7169
GLP compliance:
not specified
Type of method:
other: according to ASTM D7169
Key result
Boiling pt.:
438.5 °C
Remarks on result:
other: 50% boiling point
Conclusions:
The 50% boiling point for Santicizer Platinum P1700 was 438.5 degrees C according to the National Standard Method ASTM D7169. No further description of the method is given in the report from Intertek, hence reliability score 2.
Executive summary:

The 50% boiling point for Santicizer Platinum P1700 was 438.5 degrees C according to the National Standard Method ASTM D7169. No further description of the method is given in the report from Intertek, hence reliability score 2.

Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2015
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Internal email report of boiling point and vapour pressure assessment, guidelines not mentioned
Principles of method if other than guideline:
Notebook VSC1004-7
A 380.0 g of sample of P-1700 from Batch RP-1062 was placed in a 1-L flask and distilled under full vacuum of a mechanical pump (< 1mmHg, <240°C) until about 30 mL of liquid was condensed. The pressure was then adjusted and the material was distilled slowly under the corresponding pressure. The constant temperature was recorded as the boiling point under this pressure. There is no foaming (significant decomposition) at 312°C.

Conditions at 1 mm Hg were not ideal. A pressure of 1 mm Hg is beyond the accuracy of the vacuum gauge.

Data units were converted to utilize the gas constant R of 8.3144598 J K−1mol−1 in the The Clausius-Clapeyron equation, ln(𝑃)= −Δ𝐻𝑣𝑎𝑝𝑅(1𝑇)+𝐶. Hvap of 132,167 J/mol was found from the slope of the least squares fit of the ln[vp(Pa)] and 1/T(K) data. Using the Clausius-Clapeyron equation, the following have been extrapolated for P1700: vapor pressure at 25°C of 2.04 x 10-10 Torr and boiling point at 760 Torr of 379°C
GLP compliance:
not specified
Type of method:
distillation method
Key result
Boiling pt.:
247.7 °C
Atm. press.:
1 mm Hg
Decomposition:
no
Key result
Boiling pt.:
252.4 °C
Atm. press.:
2 mm Hg
Decomposition:
no
Key result
Boiling pt.:
257.9 °C
Atm. press.:
3 mm Hg
Decomposition:
no
Key result
Boiling pt.:
262.9 °C
Atm. press.:
4 mm Hg
Decomposition:
no
Key result
Boiling pt.:
267.5 °C
Atm. press.:
5 mm Hg
Decomposition:
no
Key result
Boiling pt.:
273.4 °C
Atm. press.:
7 mm Hg
Decomposition:
no
Key result
Boiling pt.:
281 °C
Atm. press.:
10 mm Hg
Decomposition:
no
Key result
Boiling pt.:
295.8 °C
Atm. press.:
20 mm Hg
Decomposition:
no
Key result
Boiling pt.:
304 °C
Atm. press.:
30 mm Hg
Decomposition:
no
Key result
Boiling pt.:
312 °C
Atm. press.:
50 mm Hg
Decomposition:
no
Key result
Boiling pt.:
379 °C
Atm. press.:
760 mm Hg
Remarks on result:
other: Extrapolated
Conclusions:
Vapor pressure of P1700 has been measured at reduced pressure. Using the Clausius-Clapeyron equation, the following have been extrapolated for P1700: vapor pressure at 25°C of 2.04 x 10-10 Torr, boiling point at 760 Torr of 379°C, and Heat of Vaporization of Hvap of 132,167 J/mol.
Executive summary:

Vapor pressure of P1700 has been measured at reduced pressure. Using the Clausius-Clapeyron equation, the following have been extrapolated for P1700: vapor pressure at 25°C of 2.04 x 10-10 Torr, boiling point at 760 Torr (1 atm) of 379°C, and Heat of Vaporization of Hvap of 132,167 J/mol.

Description of key information

Using the Clausius-Clapeyron equation, the following have been extrapolated for P1700: boiling point at 760 Torr of 379°C.

The 50% boiling point for Santicizer Platinum P1700 was 438.5°C according to the National Standard Method ASTM D7169.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
438.5 °C

Additional information