2-amino-2-ethylpropanediol

Vapour pressure

Link to relevant study record(s)

Reference

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Study period:

17 Jun - 13 Jul 2011

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

OECD Guideline 104 (Vapour Pressure Curve)

GLP compliance:

yes (incl. QA statement)

Type of method:

effusion method: vapour pressure balance

Temp.:

25 °C

Vapour pressure:

0.29 Pa

Remarks on result:

other: No apparent change in the appearance of the test item was noted over the duration of the test.

Transition / decomposition:

no

The results from runs 2 to 6 are shown in the following tables:

 

Run 2:

Temperature (°C)	Temperature (K)	Reciprocal Temperature (K^-1)	Mass Difference (mg)	Mass Difference (kg)	Vapour pressure (Pa)	log10Vp
10	283.15	0.003531697	37.67	3.767E-8	0.052295611	-1.281534759
11	284.15	0.003519268	40.80	4.080E-8	0.056640853	-1.246870216
12	285.15	0.003506926	46.88	4.688E-8	0.065081451	-1.186542776
13	286.15	0.003494671	52.77	5.277E-8	0.073258280	-1.135143285
14	287.15	0.003482500	58.54	5.854E-8	0.081268518	-1.090077661
15	288.15	0.003470415	67.65	6.765E-8	0.093915532	-1.027262578
16	289.15	0.003458413	74.63	7.463E-8	0.103605560	-0.984616937
17	290.15	0.003446493	83.10	8.310E-8	0.115364090	-0.937929355
18	291.15	0.003434656	93.21	9.321E-8	0.129399360	-0.888067871
19	292.15	0.003422899	106.70	1.067E-7	0.148126936	-0.829365959
20	293.15	0.003411223	132.63	1.326E-7	0.184124420	-0.734888609

 

Run 3: 

Temperature (°C)	Temperature (K)	Reciprocal Temperature (K^-1)	Mass Difference (mg)	Mass Difference (kg)	Vapour pressure (Pa)	log10Vp
10	283.15	0.003531697	36.46	3.646E-8	0.050615821	-1.295713714
11	284.15	0.003519268	38.06	3.806E-8	0.052837031	-1.277061595
12	285.15	0.003506926	44.39	4.439E-8	0.061624693	-1.210245234
13	286.15	0.003494671	49.50	4.950E-8	0.068718682	-1.162925180
14	287.15	0.003482500	55.49	5.549E-8	0.077034336	-1.113315654
15	288.15	0.003470415	62.76	6.276E-8	0.087126959	-1.059847444
16	289.15	0.003458413	71.70	7.170E-8	0.099537969	-1.002011223
17	290.15	0.003446493	89.81	8.981E-8	0.124679289	-0.904205682
18	291.15	0.003434656	93.14	9.314E-8	0.129302182	-0.888394145
19	292.15	0.003422899	106.40	1.064E-7	0.147710460	-0.830588751
20	293.15	0.003411223	123.47	1.235E-7	0.171407993	-0.765968931

 

 Run 4:

Temperature (°C)	Temperature (K)	Reciprocal Temperature (K^-1)	Mass Difference (mg)	Mass Difference (kg)	Vapour pressure (Pa)	log10Vp
10	283.15	0.003531697	32.45	3.245E-8	0.045048914	-1.346315678
11	284.15	0.003519268	36.05	3.605E-8	0.050046636	-1.300625110
12	285.15	0.003506926	39.23	3.923E-8	0.054461291	-1.263912071
13	286.15	0.003494671	44.07	4.407E-8	0.061180451	-1.213387328
14	287.15	0.003482500	48.49	4.849E-8	0.067316543	-1.171878195
15	288.15	0.003470415	57.32	5.732E-8	0.079574845	-1.099224197
16	289.15	0.003458413	64.91	6.491E-8	0.090111710	-1.045218770
17	290.15	0.003446493	76.17	7.617E-8	0.105743475	-0.975746423
18	291.15	0.003434656	85.62	8.562E-8	0.118862496	-0.924955155
19	292.15	0.003422899	99.18	9.918E-8	0.137687250	-0.861106275
20	293.15	0.003411223	114.53	1.145E-7	0.158996982	-0.798611118

 

 Run 5:

Temperature (°C)	Temperature (K)	Reciprocal Temperature (K^-1)	Mass Difference (mg)	Mass Difference (kg)	Vapour pressure (Pa)	log10Vp
10	283.15	0.003531697	30.83	3.083E-8	0.042799939	-1.368556854
11	284.15	0.003519268	32.92	3.292E-8	0.045701394	-1.340070552
12	285.15	0.003506926	37.63	3.763E-8	0.052240081	-1.281996160
13	286.15	0.003494671	43.25	4.325E-8	0.060042081	-1.221544267
14	287.15	0.003482500	46.57	4.657E-8	0.064651091	-1.189424141
15	288.15	0.003470415	56.07	5.607E-8	0.077839525	-1.108799823
16	289.15	0.003458413	62.13	6.213E-8	0.086252358	-1.064229025
17	290.15	0.003446493	71.41	7.141E-8	0.099135375	-1.003771346
18	291.15	0.003434656	81.02	8.102E-8	0.112476517	-0.948938140
19	292.15	0.003422899	105.70	1.057E-7	0.146738680	-0.833455391
20	293.15	0.003411223	109.54	1.095E-7	0.152069584	-0.817957642

 

 Run 6:

Temperature (°C)	Temperature (K)	Reciprocal Temperature (K^-1)	Mass Difference (mg)	Mass Difference (kg)	Vapour pressure (Pa)	log10Vp
10	283.15	0.003531697	28.16	2.816E-8	0.039093295	-1.407897728
11	284.15	0.003519268	31.95	3.195E-8	0.044354786	-1.353059516
12	285.15	0.003506926	34.81	3.481E-8	0.048325198	-1.315826355
13	286.15	0.003494671	40.96	4.096E-8	0.056862974	-1.245170431
14	287.15	0.003482500	46.61	4.661E-8	0.064706621	-1.189051276
15	288.15	0.003470415	53.18	5.318E-8	0.073827465	-1.131782046
16	289.15	0.003458413	61.48	6.148E-8	0.085349991	-1.068796520
17	290.15	0.003446493	67.38	6.738E-8	0.093540703	-1.028999372
18	291.15	0.003434656	79.34	7.934E-8	0.110144247	-0.958038183
19	292.15	0.003422899	95.48	9.548E-8	0.132550702	-0.877617968
20	293.15	0.003411223	110.17	1.102E-7	0.152944185	-0.815467029

 

Statistical data using an unweighted least squares method and the common logarithm of the vapour pressure at 25 °C (298 K) generated from the runs are shown in the following table:

Run	Slope	SD of Slope	Intercept	SD of Intercept	log10Vp at 25 °C
1	n/a	n/a	n/a	n/a	n/a
2	-4374	122	14.149	0.422	-0.520
3	-4548	135	14.738	0.470	-0.515
4	-4612	129	14.915	0.448	-0.552
5	-4781	172	15.486	0.597	-0.549
6	-4895	111	15.863	0.384	-0.555

SD - standard deviation

Mean log₁₀Vp at 25 °C: -0.538

Description of key information

0.29 Pa at 25 °C

Key value for chemical safety assessment

Vapour pressure:

0.29 Pa

at the temperature of:

25 °C

Additional information

Vapour pressure balance, OECD 104. Handbook data is disregarded due to inconsistency.