Silver iodide

Vapour pressure

Link to relevant study record(s)

Reference

Endpoint:

vapour pressure

Type of information:

other: Handbook data

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

data from handbook or collection of data

Remarks:

Handbook data considered to be from a trusted source acc. to "ECHA, Guidance on information requirements and chemical safety assessment – Chapter R.7a: Endpoint specific guidance".

Qualifier:

no guideline followed

Principles of method if other than guideline:

Not applicable - Handbook data

Type of method:

other: no data

Temp.:

594 °C

Vapour pressure:

1 Pa

Temp.:

686 °C

Vapour pressure:

10 Pa

Temp.:

803 °C

Vapour pressure:

100 Pa

Temp.:

959 °C

Vapour pressure:

1 kPa

Temp.:

1 177 °C

Vapour pressure:

10 kPa

Temp.:

1 503 °C

Vapour pressure:

100 kPa

Conclusions:

The vapour pressure of silver iodide is negligible at ambient temperatures:
1Pa at 594°C,
10 pa at 686°C,
100Pa at 803°C
1kPa at 959°C
10kPa at 1177°C and
100kPa at 1503°C

Description of key information

According to reliable secondary literature (factual handbook), the  vapour pressure of silver iodide increases with temperature: 1 Pa at 594°C, 10 Pa at 686°C, 100 Pa at 803°C, 1kPa at 959°C, 10kPa at 1177°C, 100kPa at 1503°C. By extrapolation, it can safely be assumed that the vapour pressure of AgI is negligible at ambient temperatures.