Rye, ext.

Melting point / freezing point

Administrative data

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2016

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

The study was conducted according to an internationally recognised method, and under GLP. The substance is considered to be adequately characterised with its purity. Therefore full validation applies.

Cross-reference

Reason / purpose for cross-reference:

reference to same study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2016

Report date:

2016

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Deviations:

no

GLP compliance:

yes

Other quality assurance:

other: quality assurance statement

Type of method:

differential scanning calorimetry

Test material

Test material information

Constituent 1

Reference substance name:

Rye, ext.

EC Number:

290-271-3

EC Name:

Rye, ext.

Cas Number:

90106-48-2

IUPAC Name:

Oligosaccharides and polysaccharides of glucose from Rye

Test material form:

solid: particulate/powder

Details on test material:

- Appearance: white powder
- Storage In darkness at room temperature
- Batch: 16 167
- Manufacturing date: June 2016
- Expiry date: June 2018

Results and discussion

Melting / freezing point

Key result

Atm. press.:

>= 101 320 - <= 101 330 Pa

Decomposition:

yes

Remarks:

After the experimentation, the test item aspect changed, the powder inflated and overflowed, then a decomposition was observed.

Decomp. temp.:

ca. 200 °C

Any other information on results incl. tables

essai 1 : an evaporation of the hydration water was recorded from about 47°C to about 110 -120°C. No melting point of the test item was recorded.

essai 2 : the evaporation of the hydratation water was confirmed from about 47°C to about 120°C. No melting point of the test item was recorded.

A complementary assay was carried out with a Köfler bench to confirm the decomposition of the test item. A small quantity of the test item was put on the hot surface at different temperatures. At about 150 °C, the colour of the powder became darker. At about 200 °C, the test item aspect changed, the powder inflated and then a decomposition was observed.

Applicant's summary and conclusion

Conclusions:

An evaporation of the hydration water was recorded from about 50°C to about 100°C. No melting point of the test item was recorded.

Executive summary:

The melting point of the test substance was tested under GLP according to EU A1 and OECD 102, by differential scanning calorimetry. Three runs were performed under nitrogen atmosphere, and one complementary assay was carried out with a Köfler bench to confirm the decomposition of the test item and no melting point was recorded.

The test item inflated and darkened sign of decomposition .