Copper di-D-gluconate

Vapour pressure

Link to relevant study record(s)

Reference

Endpoint:

vapour pressure

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:

EU Method A.4 (Vapour Pressure)

GLP compliance:

yes (incl. QA statement)

Type of method:

static method

Specific details on test material used for the study:

Dried and ground before testing

Key result

Test no.:

#1

Temp.:

20 °C

Vapour pressure:

12.89 Pa

Test no.:

#2

Remarks on result:

other: Invalid test

Remarks:

As test runs 1 and 3 were in agreement it is suspected that the degassing period for run 2 was insufficient and is considered invalid.

Key result

Test no.:

#3

Temp.:

20 °C

Vapour pressure:

13.79 Pa

Comment

Run 1: 9.88 g of powder used in the analysis. The total degassing time was approximately 85 hours. The vacuum at the start of analysis was 0.0029 mbar.

Run 2: 11.22 g of sample was used in the analysis. The total degassing time was approximately 21 hours. The vacuum at start of analysis was 0.0032mbar. Due to the variance in results between run 1 and 2 (23.5 Pa at 20°C) a third test run was performed.

Run 3: 10.60 g of sample was used in the analysis. The total degassing time was approximately 41 hours. The vacuum at start of analysis was 0.0023mbar.

As test runs 1 and 3 were in agreement it is suspected that the degassing period for run 2 was insufficient and is considered invalid.

Conclusions:

13.3 Pa at 20°C (mean of runs 1 & 3)

Description of key information

13.3 Pa at 20°C (mean of runs 1 & 3)

Key value for chemical safety assessment

Vapour pressure:

13.3 Pa

at the temperature of:

20 °C