Registration Dossier

Administrative data

Endpoint:
auto-ignition temperature (liquids)
Data waiving:
study technically not feasible
Justification for data waiving:
the study does not need to be conducted because the substance is a liquid non flammable in air, e.g. no flash point up to 200°C
Justification for type of information:
The substance is inorganic and will not support combustion.
Although considered to be a solid, it was not possible to dry as heating to remove water leads to chemical changes.
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Reason / purpose:
data waiving: supporting information
Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Justification for type of information:
Dierct observation from heating
As the substance is impossible to remove from water, the onset of boiling / degradation was linked to the presence of the water
Qualifier:
equivalent or similar to
Guideline:
EU Method A.2 (Boiling Temperature)
Principles of method if other than guideline:
Direct heating of the solution to see if boiling occured. Boiling started at ca 100 C with a colour change suggesting degradation
GLP compliance:
no
Type of method:
other: Direct observation under heating
Specific details on test material used for the study:
Production grade material as solution with ca 36 - 37% actives
Boiling pt.:
ca. 100 °C
Atm. press.:
ca. 1 atm
Decomposition:
yes
Remarks:
Colour change as water started to be removed
Decomp. temp.:
ca. 100 °C

The substance does boil at a temperatures of 100 °C. However, this is attributed to the water in solution and not the actual substance.

The test was performed by direct observation by heating to100 C. Boiling started and colour changes to blue.

Conclusions:
The substance does boil at a temperatures of 100 °C. However, this is attributed to the water in solution and not the actual substance.
The test was performed by direct observation by heating to100 C. Boiling started and colour changes to blue.
Reason / purpose:
data waiving: supporting information
Reference
Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with generally accepted scientific standards and described in sufficient detail
Qualifier:
no guideline followed
Principles of method if other than guideline:
Direct observation of the material
Attempts were made to remove water.
GLP compliance:
no
Specific details on test material used for the study:
Production material was taken and attempts made to remove water.
Analysis demonstrated ca 36 - 37% actives in water
Physical state at 20°C and 1013 hPa:
liquid
Remarks:
As supplied
Key result
Form:
liquid
Colour:
Green
Substance type:
inorganic

Attempts were made to remove water by heating, but colour change indicated a potential change in oxidation state. The registered substance is of mixed valancy.

Even if managing to obtain dry material, it is very hygroscopic and not possible to handle without absorbance of water.

Conclusions:
Not possible to remove from water without apparent degradation / oxidation

Data source

Materials and methods

Results and discussion

Applicant's summary and conclusion