Phosphoric acid, mixed decyl and octyl esters, compds. with diethanolamine

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:

2018

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Deviations:

no

Qualifier:

equivalent or similar to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

capillary method

Specific details on test material used for the study:

Name: Phosphoric acid, mixed decyl and octyl esters, compds. with diethanolamine
CAS No.: 68425-57-0
Physical state: white solid at 20 °C (turbid, non-pourable paste)
Batch No.: PU61810016
Re-certification date of batch: 16 June 2018
Purity: 100 % (UVCB)
Moisture, % (KF) 1,2
pH, 10% in dW 7,2
Stability: stable under test conditions
Storage condition of test material: Room temperature, protected from light

Key result

Melting / freezing pt.:

>= 30.2 - <= 40.8 °C

Atm. press.:

1 013 mBar

Decomposition:

no

Sublimation:

no

Results

Preliminary Test

The test item was put into the capillary tube, fused at one end, so that the filling level was approximately 4 to 6 mm. Then the filled capillary tube was centrifuged for 10 minutes at 4000 rpm and placed into the metal heating block of the instrument.

Main Test

A small amount of the test item was placed in a capillary tube. Then the filled capillary tube was centrifuged for 10 minutes at 4000 rpm and placed into the metal heating block of the instrument. The device was heated to the starting temperature of approx. 303.15 K (30 °C) since melting point apparatus can only heat 10 K above room temperature. The filled capillary tube was inserted in the metal heating block of the device. The tube was heated at a rate of 0.5 K/min together with a temperature sensor in a metal heating block until melting of the sample was observed.

Discussion and Conclusion

The melting range of the test item was determined to be between 30.2 °C and 40.8 °C (303.4 K and 320.0 K).

Conclusions:

The test was carried out according to OECD guideline 102 and EC method A.1. The melting range of the test item was determined to be between 30.2 °C and 40.8 (303.4 K and 320.0 K).

Executive summary:

The test was carried out according to OECD guideline 102 and EC method A.1. The melting range of the test item was determined to be between 30.2 °C and 40.8 (303.4 K and 320.0 K).

Description of key information

The test was carried out according to OECD guideline 102 and EC method A.1. The melting range of the test item was determined to be between 30.2 °C and 40.8 (303.4 K and 320.0 K).

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

30.2 °C