2-{2-chloro-4-mesyl-3-[(tetrahydrofuran-2-ylmethoxy)methyl]benzoyl}cyclohexane-1,3-dione

Stability: thermal, sunlight, metals

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

stability: thermal, sunlight, metals, other

Remarks:

thermal, metals and metal ions, corrosion characteristics

Type of information:

experimental study

Adequacy of study:

supporting study

Study period:

27 Mar 2012 - 11 Apr 2012

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:

EPA OPPTS 830.6313 (Stability to Sunlight, Normal and Elevated Temperature, Metals and Metal Ions)

Qualifier:

according to guideline

Guideline:

other: EPA OPPTS 830.6313 (Corrosion Characteristics)

GLP compliance:

yes (incl. QA statement)

Remarks:

Hess. Ministerium für Umwelt, Energie, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany

Test substance thermally stable:

yes

Key result

Operating temp.:

>= 20.8 - <= 23 °C

Remarks on result:

other: worst case conditions by admixing test item and iron powder, ferric citrate monohydrate, aluminium gritty and aluminium acetate together in each sample

Key result

Operating temp.:

>= 52.6 - <= 54.2 °C

Remarks on result:

other: worst case conditions by admixing test item and iron powder, ferric citrate monohydrate, aluminium gritty and aluminium acetate together in each sample

Test substance stable to sunlight:

not determined

Test substance stable to metals / metal ions:

yes

Results of the 14 d stability test (ambient temperature and elevated temperature) according to EPA OPPTS 830.6313:

The results from storage at ambient (20.8 – 23.0 °C) temperature and at elevated (52.6 - 54.2 °C) temperatures showed the test substance to be stable in the presence of a mixture of metals and metal ions with respect to both and chemical purity. During and after the completion of the stability test, no content decrease of the test item was measured and no physical changes of the test item were observed.

Sampling time	Conditions	a.i. content [g/kg] (stability	Appearance of th test item (condition, colour)
Day zero	ambient temperature	987	yellow powder
Day 1	ambient temperature elevated temperature	991 995	yellow powder yellow powder
Day 2	ambient temperature elevated temperature	989 996	yellow powder yellow powder
Day 7	ambient temperature elevated temperature	996 997	yellow powder yellow powder
Day 14	ambient temperature elevated temperature	991 996	yellow powder yellow powder

Results of the 14 d corrosion study at elevated temperature according to EPA OPPTS 830.6313 / 6320:

The 14 days storage of the test substance, technical substance, at elevated (54 °C) conditions showed no colour changes or clumping of the test item. The immersed part of the test material strips of aluminium, brass, copper, steel, stainless steel, PE and PP shows no changes in their physical appearance.

To conclude, from the materials tested in this study: aluminium, brass, copper, steel, stainless steel, PE and PP showed no corrosion signs (e.g. pitting or rust) and can all be used for storing the test substance, technical material.

Sample	Appearance of test item stored at 54 °C	Appearance of test mat. strips stored at 54 °C	a.i. content [g/kg]
Day 14, aluminium	Colour: yellow Condition: powder	Colour: unchanged Condition: unchanged	987
Day 14, brass	Colour: yellow Condition: powder	Colour: unchanged Condition: unchanged	988
Day 14, copper	Colour: yellow Condition: powder	Colour: unchanged Condition: unchanged	987
Day 14, steel	Colour: yellow Condition: powder	Colour: unchanged Condition: unchanged	991
Day 14, stainless steel	Colour: yellow Condition: powder	Colour: unchanged Condition: unchanged	989
Day 14, PE	Colour: yellow Condition: powder	Colour: unchanged Condition: unchanged	990
Day 14, PP	Colour: yellow Condition: powder	Colour: unchanged Condition: unchanged	988
Day 14, control			987

Reference 2

Endpoint:

thermal stability

Type of information:

experimental study

Adequacy of study:

key study

Study period:

21 Nov 2012

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 113 (Screening Test for Thermal Stability and Stability in Air)

GLP compliance:

yes (incl. QA statement)

Remarks:

Hess. Ministerium für Umwelt, Energie, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany

Key result

Operating temp.:

>= 135 - <= 380 °C

Remarks on result:

other: exothermal effect

The test item, technical substance, showed an endothermal effect in the temperature range of 100 - 135 °C directly followed by an exothermal effect in the temperature range of 135 - 380 °C with an energy of 416 J/g and 172 J/g, respectively.

Description of key information

The test item, technical substance, showed an endothermal effect (100 - 135 °C) directly followed by an exothermal effect (135 - 380 °C) with an energy of 416 J/g and 172 J/g respectively.

(DSC, OECD Guideline 113)

The test item, technical substance, is stable at ambient and elevated temperature (54 °C) in the presence of a mixture of metals and metal ions. (EPA OPPTS 830.6313)