Propylphosphonic dichloride

Stability: thermal, sunlight, metals

Administrative data

Endpoint:

stability: thermal, sunlight, metals, other

Remarks:

Migrated from section 'Stability: thermal, sunlight, metals'

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Guideline and GLP-Study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2012

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 113 (Screening Test for Thermal Stability and Stability in Air)

GLP compliance:

yes (incl. QA statement)

Test material

Test material information

Constituent 1

Reference substance name:

Propylphosphonic dichloride

EC Number:

225-195-1

EC Name:

Propylphosphonic dichloride

Cas Number:

4708-04-7

Molecular formula:

C3H7Cl2OP

IUPAC Name:

propylphosphonoyl dichloride

Results and discussion

For thermal stability study

Test substance thermally stable:

yes

Operating temperature

Operating temp.:

20 - <= 300 °C

Any other information on results incl. tables

PERFORMANCE OF THE DSC

Samples of the test item were weighed into glass crucibles. The samples were inserted into the sensing element at a start temperature of 20°C. For each experiment a reference crucible filled with the inert material aluminium oxide was chosen. The heating rate was adjusted to 3°C/min and the final temperature of the test was programmed. The test was performed with open and sealed glass crucibles. Each sample was controlled for mass loss by recording the crucible weight before and after the DSC experiment.

RESULTS

No exothermic peaks could be found in one of the three DSC tests. The tests 1 +2 were performed in closed glass crucibles in nitrogen respectivley air atmosphere. In both tests no endothermic or exothermic events below 150°C were observed. In test 1 a step at approximately 150°C is visible; in test 2 a step at about 105°C was deteced. This effect could be explained by the vibration of the crucible on the sensing element, caused by the vaporization and dripping down of the test item. After each experiment (test 1+2) the colour of the test item changed to brown.

An endothermic event starting at about 159°C was detected in test 3. This experiment was performed with an open glass crucible. After the test, almost the complete amount of the weigthed sample was lost due to the vaporization of the test item. No decomposition or chemical transformation below 150°C was found in one of the three DSC tests. Therefore the test item Propylphosphonic dichloride is classified to be themal stable at room temperature.