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Diss Factsheets

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
July 2012
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study conducted in accordance with generally accepted scientific principles, possibly with incomplete or methodological deficiencies, which do not affect the quality of relevant results.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2012
Report date:
2012

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
GLP compliance:
not specified
Type of method:
static method

Test material

Constituent 1
Chemical structure
Reference substance name:
2-hydroxy-3-({3-[(2E)-3-(4-methoxyphenyl)prop-2-enamido]propyl}dimethylazaniumyl)propane-1-sulfonate
EC Number:
695-243-8
Cas Number:
500731-87-3
Molecular formula:
C18H28N2O6S
IUPAC Name:
2-hydroxy-3-({3-[(2E)-3-(4-methoxyphenyl)prop-2-enamido]propyl}dimethylazaniumyl)propane-1-sulfonate
Test material form:
other: liquid
Details on test material:
Chemical name: 3-(N-p-methoxy cinnamidopropyl-N,N-dimethyl ammonium)-2-hydroxypropane-1-sulphonate
INCI name: Methoxycinnamidopropyl Hydroxysultaine
Product Code (supplier): Galaxy SunBeat
CAS number: 500731-87-3
Molecular Weight: 400 g/mol
Molecular Formula: C18 H28 O6 N2 S
E1%1cm at 306 nm in water: 245-290

Results and discussion

Vapour pressure
Temp.:
30 °C
Vapour pressure:
5.6 kPa

Any other information on results incl. tables

Experimental Data:

Vapour pressure at different temperatures

Sr. No

Temperature (°C)

Vapour Pressure (kPa)

1

10

1.8

2

20

3.3

3

30

5.6

4

37.8

8.3

5

49.5

14.3

6

63.1

25.4

7

7.05

35.7

8

80.4

52.2

9

88

68.8

10

99

101.3

11

108

138.8

 

Calculation for log P versus 1/T curve:

Sr. No.

Temperature

Pressure

logP

1/T

 

T (°C)

T = t+273.15 (K)

(kPa)

P (Pa)

 

(1/K)

1

10

283.15

1.8

1800

3.2553

0.00353

2

20

293.15

3.3

3300

3.5185

0.00341

3

30

303.15

5.6

5600

3.7482

0.00330

4

37.8

310.95

8.3

8300

3.9191

0.00322

5

49.5

322.65

14.3

14300

4.1553

0.00310

6

63.1

336.25

25.4

25400

4.4048

0.00297

7

70.5

343.65

35.7

35700

4.5527

0.00291

8

80.4

353.55

52.2

52200

4.7177

0.00283

9

88

361.15

68.8

68800

7.8376

0.00277

10

99

372.15

101.3

101300

5.0056

0.00269

11

108

381.15

138.8

138800

5.1424

0.00262

For estimation of vapour pressure at 25 °C from the log P versus 1/T curve see attachment Fig. 1.

Applicant's summary and conclusion

Conclusions:
Vapour pressure of Galaxy SunBeat is 5.6 kPa at 30 °C.
Executive summary:

Vapour pressure of Galaxy SunBeat was determined as per OECD guidelines for the testing of chemicals; No. 104 using the static method. Vapour pressure of Galaxy SunBeat is 5.6 kPa at 30 °C.