Phosphoric acid, C14-15-branched and linear alkyl esters, potassium salts

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling 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 103 (Boiling Point)

Deviations:

no

Qualifier:

equivalent or similar to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

other: The boiling point is determined visually on a Büchi M 565 boiling point apparatus.

Specific details on test material used for the study:

Name: Phosphoric acid, C14-15 branched and linear alkyl esters, potassium salts
CAS No.: 1893414-79-3
Physical state: white solid at 20 °C
Batch No.: PU61810016
Re-certification date of batch: 09 March 2018
Purity: 100 % (UVCB, lyophilized solid, water content 0.85 % (w/w))
Stability: stable under test conditions
Storage condition of test material: Room temperature, protected from light

Key result

Boiling pt.:

> 270 °C

Atm. press.:

1 013 mBar

Decomposition:

yes

Decomp. temp.:

>= 270 °C

Preliminary Test

The test item was put into the capillary tube, fused at one end, so that the filling level was approximately 5 to 10 mm. Then the filled capillary tube was placed into the metal heating block of the instrument. The test was started at 30 °C. The heating rate was 5 K/min. A fresh sample was prepared for each measurement. A boiling point capillary was inserted into the liquid (e.g. after melting) test item. To get information about the approximate boiling point the metal heating block was heated at a rate of 5 K/min. During heating the test item and the temperature were monitored by the appliance so that the approximate boiling point could be determined. The current air pressure was read from the barometer and entered into the boiling point apparatus to obtain correct results. On this basis the boiling point was calculated by the apparatus automatically.

 Main Test

As the test item started to decompose at 270 °C, no boiling point could be determined. No main test was performed.

Conclusions:

The test was carried out according to OECD guideline 103 and EC method A.2. No boiling point could be observed as the test item started to decompose at a temperature of about 270 °C.

Executive summary:

The test was carried out according to OECD guideline 103 and EC method A.2. No boiling point could be observed as the test item started to decompose at a temperature of about 270 °C. Some bubbles were observed from about 270 °C on. The test item began to change its color at about 250 °C to yellowish turbid. This behavior of the test item leads to the conclusion that the test item decomposes and has no boiling point.

Description of key information

The test was carried out according to OECD guideline 103 and EC method A.2. No boiling point could be observed as the test item started to decompose at a temperature of about 270 °C.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:

270 °C