Reaction product of tin, citric acid and nitric acid

Vapour pressure

Administrative data

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2017

Report date:

2017

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 104 (Vapour Pressure Curve)

GLP compliance:

yes

Type of method:

static method

Test material

Test material information

1

Reference substance name:

Reaction product of tin, citric acid and nitric acid

EC Number:

944-119-4

Molecular formula:

not available

IUPAC Name:

Reaction product of tin, citric acid and nitric acid

Test material form:

liquid

Details on test material:

Charge: 170001CAKO

Results and discussion

Vapour pressure

Vapour pressure 1

Key result

Temp.:

20 °C

Vapour pressure:

17.1 hPa

Remarks on result:

other: interpolated

Vapour pressure 2

Key result

Temp.:

25 °C

Vapour pressure:

23.24 hPa

Remarks on result:

other: interpolated

Vapour pressure 3

Key result

Temp.:

50 °C

Vapour pressure:

94.26 hPa

Remarks on result:

other: extrapolated

Vapour pressure at 50°C (if relevant for classification of gas under pressure)

Key result

Vapour pressure:

94.26 hPa

Remarks on result:

other: extrapolated

Any other information on results incl. tables

Results

Temperature [°C]	Vapour pressure (measurement) [hPa]	Vapour pressure (calculation) [hPa]
9.37	8.6	8.54
14.34	12.0	11.88
19.31	16.0	16.34
29.29	29.9	30.04
39.28	53.8	53.15
49.21	90.3	90.48
59.20^b)	153.7^b)	149.65
69.19^b)	241.4^b)	240.34
79.13^b)	370.8^b)	374.95
99.10^b)	808.3^b)	852.79

The regression of the vapor pressure data leads with a mean deviation of 0.96 % to the following rounded equation:

In ( p/hPa) = 21.2438 -5395.89 / ( 273.15 + t/°C)

With this equation, the values of the following table were calculated:

Temperature, t/°C	Vapour pressure, p/hPa ^a)
20^c)	17.1^c)
25^c)	23.24^c)
50^d)	94.26^d)

^a) calculated by use of the unrounded regression equation.

^b) values not used for regression

^c) interpolated

^d) extrapolated

Remarks

At a temperature of approximately 60°C and above a continuously increasing vapor pressure was observed. This indicates a thermally caused change of the test item.