Disodium 2-oxoglutarate

Explosiveness

Administrative data

Endpoint:

explosive properties of explosives

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the substance is an organic substance or mixture containing chemical groups associated with explosive properties, but the exothermic decomposition energy is less than 500 J/g and the onset of exothermic decomposition is below 500°C

Justification for type of information:

The decomposition energy of the substance is less than 500J/g as determined by DSC-Measurement. See further information in the cross-ref.

Cross-reference

Reason / purpose for cross-reference:

data waiving: supporting information

Reference

Endpoint:

thermal stability

Type of information:

experimental study

Adequacy of study:

key study

Study period:

15 - 20 March 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

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

Version / remarks:

1981

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Test substance thermally stable:

yes

Key result

Operating temp.:

>= 180 - <= 240 °C

Remarks on result:

other: endothermic effect

Key result

Operating temp.:

>= 240 - <= 270 °C

Remarks on result:

other: exothermic effect

Key result

Operating temp.:

>= 290 - <= 350 °C

Remarks on result:

other: endothermic effect

Key result

Operating temp.:

>= 360 - <= 410 °C

Remarks on result:

other: endothermic effect

Key result

Operating temp.:

>= 410 - <= 460 °C

Remarks on result:

other: exothermic effect

Sublimation:

not determined

Transformation products:

not specified

In the temperature range of 180 – 240 °C a first small endothermic effect can be observed, directly followed by an exothermic effect in the temperature range of 240 – 270 °C, with an average decomposition energy of -70 J/g. Two further endothermic effects occurred in the temperature ranges of 290 – 350 °C and 360 – 410 °C, directly followed by a second exothermic effect in the temperature range of 410 – 460 °C, with an average decomposition energy of -60 J/g.

Conclusions:

In a thermal stability test according to the OECD test guideline 113, the test item Alpha-Ketoglutarate disodium salt (CAS no. 305-72-6) showed two exothermic effects in the temperature ranges of 240 – 270 °C and 410 – 460 °C with an overall decomposition energy of approx. -130 J/g.

Executive summary:

In a thermal stability test according to the OECD test guideline 113, the test item Alpha-Ketoglutarate disodium salt (CAS no. 305 -72 -6) showed two exothermic effects in the temperature ranges of 240 – 270 °C and 410 – 460 °C with an overall decomposition energy of approx. -130 J/g.