Soybean oil, reaction products with ethaneperoxoic acid

Vapour pressure

Administrative data

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Study period:

10 May - 19 July 2010

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: GLP/guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2010

Report date:

2010

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 104 (Vapour Pressure Curve)

Deviations:

not specified

GLP compliance:

yes

Type of method:

gas saturation method

Test material

Test material information

Constituent 1

Reference substance name:

Soybean oil, reaction products with ethaneperoxoic acid

Cas Number:

693217-63-9

Molecular formula:

C59 H106 O11

IUPAC Name:

Soybean oil, reaction products with ethaneperoxoic acid

Test material form:

liquid: viscous

Details on test material:

Agrol Polyol, lot number 09-3.6-ASO-010, from BioBased Technologies was used. The purity was >99%. Viscosity of the test material was 760. The hydroxyl value was 113 and the acid value was 0.3.

Results and discussion

Vapour pressure

Temp.:

25 °C

Vapour pressure:

< 0.02 Pa

Remarks on result:

other: No Test Item was found at the maximum temperature (150C) and the lowest flow rates achievable in our system, no further tests were conducted. Thus the vapor pressure is an estimated value.

Transition / decomposition

Transition / decomposition:

no

Any other information on results incl. tables

The FAME profile of the Test Item was comprised of four fatty acids; palmitic (16:0), stearic(18:0), oleic (18:1) and linoleic (18:2) acids. Linoleicacid was the largest component. Trace levels of fatty acids were detected in the empty sample holder when incubated at 150°C but not in reagent blanks.This indicated that some contamination originated in the gas supply or fittings used in the sample holder or oven.The fatty acids detected in the blank sample holder were palmitic (16:0), stearic(18:0) and palmitoleic (16:1) acids. This result was confirmed a total of three times. We were therefore able to distinguish the Test Item from the background contributed by the sample holder.The GC/MS system was calibrated using the sum of oleic and linoleic acids; acids present in the Test Item but not in significant quantities in the blank.

Recovery of Test Item spiked into the cold traps was determined to be 101% when desorbed using 5 mL of dichloromethane. A subsequent 5 mL dichloromethane flush contained no Test Item.

The first tests were done at 150°C and at four flow rates ranging from 1.8 to 7.8 mL/min. No Test Item was detected. The vapour pressure at 150°C was therefore estimated from the method detection limit. This result was confirmed at 120 °C and 35°C. Since no Test Item was found at the maximum temperature and the lowest flow rates achievable in our system, no further tests were conducted.

The client provided a molecular weight estimate of 1000 to 2000 Daltons for the Test Item, with a most likely weight of 1000 g/mol. For the purposes of the vapour pressure calculation, we used 1000 g/mol. The vapour pressure of Agrol^®Polyol was calculated to be < 0.046 Pa at 150°C, < 0.035 Pa at 120°C and < 0.023 at 35°C. Vapour pressure calculations using the upper end of the molecular weight range (2000 g/mol) would lower these limits. A plot of the log (base10) of the vapour pressure versus the inverse of the oven temperature could not be done because no Test Item was detected at any temperature. Based on the result obtained at 35 °C, we estimate the vapour pressure at 25°C to be <0.02 Pa.

Applicant's summary and conclusion

Conclusions:

We conclude that Agrol® Polyol has a vapour pressure of < 0.02 Pa at 25°C by OECD Test No.104.

Executive summary:

The Test Item, Agrol Polyol was tested by Investigative Science Incorporated (ISI) for vapor pressure according to Organization for Economic Co-operation and Development (OECD) methods. The tests were requested by BioBased Technologies LLC, Fayetteville, Arkansas.

The Test Item is an Unknown or Variable composition, Complex reaction products and Biological materials (UVCB) substance. This UVCB characteristic should be considered when interpreting the testing results.

The vapor pressure at 150C is <0.046 Pa. At room temperature, 25C, the vapor pressure is estimated to be <0.02 Pa.