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Physical & Chemical properties

Stability: thermal, sunlight, metals

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Reference
Endpoint:
stability: thermal, sunlight, metals, other
Remarks:
Migrated from section 'Stability: thermal, sunlight, metals'
Data waiving:
other justification
Justification for data waiving:
other:

Description of key information

Stability To Heat, Light, and Metals
Justification For Waiving (ECHA TGD refs 7.1.10, 7.1.11, and 7.1.13)

According to “ANNEX IX- STANDARD INFORMATION REQUIREMENTS FOR SUBSTANCES MANUFACTURED OR IMPORTED IN QUANTITIES OF 100 TONNES OR MORE, study for Stability is only required if stability of the substance is considered to be critical.
Expert Judgement
The substance is stable for long periods if kept dry and at ambient temperatures and stored under reasonable conditions.
The substance is from Reactive Group-Bases, Strong and do not contain an organic materials and the substance is incapable of reacting exothermically with combustible materials, on the basis of the chemical structure or by heating to cause a fire or explosion.
Dipotassium oxide/ Potassium oxide is stable on storage and does not react with its container under normal conditions of use and storage.
Therefore testing for Stability: thermal, sunlight, metals does not need to be performed.

Additional information

Stability To Heat, Light, and Metals

Justification For Waiving (ECHA TGD refs 7.1.10, 7.1.11, and 7.1.13)

According to “ANNEX IX- STANDARD INFORMATION REQUIREMENTS FOR SUBSTANCES MANUFACTURED OR IMPORTED IN QUANTITIES OF 100 TONNES OR MORE, study for Stability is only required if stability of the substance is considered to be critical.

Expert Judgement

The substance is stable for long periods if kept dry and at ambient temperatures and stored under reasonable conditions.

The substance is from Reactive Group-Bases, Strong and do not contain an organic materials and the substance is incapable of reacting exothermically with combustible materials, on the basis of the chemical structure or by heating to cause a fire or explosion.

Dipotassium oxide/ Potassium oxide is stable on storage and does not react with its container under normal conditions of use and storage.

Therefore testing for Stability: thermal, sunlight, metals does not need to be performed.

Justification for classification or non-classification

Based on the hazard assessment of Dipotassium oxide/ Potassium oxide in section 2.1 and 2.2 in IUCLID 5.4, available data for the substance and according to the criteria described in Directive 67/548/EEC and in the Regulation (EC) No 1272/2008 on classification, labelling and packaging of substances and mixtures (CLP Regulation):

 

 

Directive 67/548

Thermal stability

R5 Heating may cause an explosion.

R6 Explosive with or without contact with air.

 

CLP

Self-reactive substances and mixures

H240: Heating may cause an explosion.

H241: Heating may cause a fire or explosion.

H242: Heating may cause a fire.

Self-react. Type A

Self-react. Type B

Self-react. Type C

Self-react. Type D

Self-react. Type E

 

  

It is concluded that none of the above phrase has not to be assigned to Dipotassium oxide/ Potassium oxide and   does not meet the criteria to be classified for Stability: thermal, sunlight, metals.