Alfalfa, ext.

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From May to June 2018

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

differential scanning calorimetry

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: AL01
- Expiration date of the lot/batch: 10.09.2019
- Purity test date: not available

RADIOLABELLING INFORMATION (if applicable)
- Radiochemical purity: not applicable
- Specific activity: not applicable
- Locations of the label: not applicable
- Expiration date of radiochemical substance: not applicable

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: refrigerated (2 to 8°C)
- Stability under test conditions: not available
- Solubility and stability of the test substance in the solvent/vehicle: not applicable
- Reactivity of the test substance with the solvent/vehicle of the cell culture medium: not applicable

TREATMENT OF TEST MATERIAL PRIOR TO TESTING
- Treatment of test material prior to testing: none
- Preliminary purification step (if any): none
- Final dilution of a dissolved solid, stock liquid or gel: not applicable
- Final preparation of a solid: not applicable

FORM AS APPLIED IN THE TEST (if different from that of starting material)

TYPE OF BIOCIDE/PESTICIDE FORMULATION (if applicable)

OTHER SPECIFICS: none

Key result

Decomposition:

yes

Decomp. temp.:

ca. 288.12 °C

Table of results:

	Endotherm onset temperature (ºC)	Heat of melting (J/g)	2^ndEndotherm onset temperature (ºC)	Heat of decomposition (J/g)
Screening test	111.78	502.17	288.12	23.16

  

Comment:

A black residue was observed upon completion of the test. The endotherm observed at 112°C is suspected to be due to the evaporation of water/ solvent and not boiling. The exotherm was suspected to be due to decomposition. A second exotherm was then observed at approximately 423°C, which was suspected to be due to secondary decomposition.

Conclusions:

In a Diffential Scanning Calorimetry (DSC) test, conducted according to OECD test guideline 103 and to GLP, a decomposition temperature of 288.12°C was determined for Alfalfa, ext.

Executive summary:

A Diffential Scanning Calorimetry (DSC) test, conducted according to OECD test guideline 103 and to GLP, was performed to determine the boiling point and / or the onset temperature and magnitude of any exothermic activity for Alfalfa, ext.

A sample of Alfalfa, ext. was charged to an open aluminum DSC crucible, which was then placed in the furnace. The sample was then ramped from -40°C to 500°C at 10 K/min.

A decomposition temperature of 288.12°C was determined for Alfalfa, ext.

Description of key information

Boiling point: 288.12°C (decomposition temperature)

Additional information

A Diffential Scanning Calorimetry (DSC) test, conducted according to OECD test guideline 103 and to GLP, was performed to determine the boiling point and / or the onset temperature and magnitude of any exothermic activity for Alfalfa, ext.

A decomposition temperature of 288.12°C was determined for Alfalfa, ext.