Copper(2+), bis[N-[amino(imino-.kappa.N)methyl]urea-.kappa.O]-, nitrate (1:2)

Stability: thermal, sunlight, metals

Link to relevant study record(s)

Reference

Endpoint:

stability: thermal, sunlight, metals, other

Remarks:

Migrated from section 'Stability: thermal, sunlight, metals'

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2012-07-06

Qualifier:

according to guideline

Guideline:

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

Deviations:

no

GLP compliance:

no

Test substance thermally stable:

yes

Operating temp.:

< 150 °C

Remarks on result:

other: CuGUN is considered to be thermally stable in both inert and air since there is no mass loss below 150°C

Sublimation:

not determined

Transformation products:

no

Test substance stable to sunlight:

not determined

Test substance stable to metals / metal ions:

not determined

Description of key information

The thermal stability of CuGUN was determined according to the OECD 113 test procedure using a TA instruments 2950 thermogravimetric analyzer (TGA). In TGA analysis the mass loss versus temperature of a material is measured to determine decomposition temperatures. An empty aluminium pan is hung from a wire connected to a sensitive balance. The pan mass is tared and then a small sample (10-50 mg) of material is placed in the pan. The pan is then lowered into a furnace that is purged with either an inert gas (nitrogen) or air and the temperature is ramped from ambient temperature to 500°C at 5°C/min and the change in mass observed as a function of furnace temperature. The thermograms show that CuGUN has an onset of mass loss at an average of 214.9 °C (0.5°C standard deviation) in nitrogen and 224°C (0.5°C standard deviation) in air. CuGUN is considered to be thermally stable in both inert and air since there is no mass loss below 150°C.