Dipotassium oxide

Explosiveness

Link to relevant study record(s)

Reference

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 there are no chemical groups present in the molecule which are associated with explosive properties

other:

Description of key information

Explosivity
Justification For data Waiving (ECHA TGD ref 7.1.11)
  
From the compositional description and the structural formula given, it can be concluded that this substance CAS 12136-45-7 , (EINECS) 235-227-6 does not exhibit explosive properties (will not detonate or deflagrate, under conditions of excessive heating with or without confinement, impact, or friction to produce heat and or gas).  There are no functional groups or other structural alerts associated with explosive properties or tendencies that would indicate that this substance will manifest explosive properties. Similarly, the calculated Oxygen Balance is less than -200 suggesting that testing need not be conducted and that a negative result can be predicted. Thus, this substance should not be classified as dangerous according to the criteria for explosivity, which is furthermore confirmed by long term handling experience.
According to “ANNEX VII- STANDARD INFORMATION REQUIREMENTS FOR SUBSTANCES MANUFACTURED OR IMPORTED IN QUANTITIES OF 1 TONNE OR MORE , study for Explosive properties does not need  to be conducted if:
—there are no chemical groups associated with explosive properties present in the molecul
Expert Judgement 
Due to the absence of chemical groups associated with Explosive properties or other structural alerts  this substance is not considered to exhibit  Explosiveness.
There are no chemical groups associated with explosive properties present in the molecules.
This product is generally non explosive as well on the basis of the chemical structure.
Therefore testing for Explosive properties does not need to be performed.

Key value for chemical safety assessment

Explosiveness:

non explosive

Additional information

Explosivity

Justification For data Waiving (ECHA TGD ref 7.1.11)

 

From the compositional description and the structural formula given, it can be concluded that this substance CAS 12136-45-7 , (EINECS) 235-227-6 does not exhibit explosive properties (will not detonate or deflagrate, under conditions of excessive heating with or without confinement, impact, or friction to produce heat and or gas). There are no functional groups or other structural alerts associated with explosive properties or tendencies that would indicate that this substance will manifest explosive properties. Similarly, the calculated Oxygen Balance is less than -200 suggesting that testing need not be conducted and that a negative result can be predicted. Thus, this substance should not be classified as dangerous according to the criteria for explosivity, which is furthermore confirmed by long term handling experience.

 

According to “ANNEX VII- STANDARD INFORMATION REQUIREMENTS FOR SUBSTANCES MANUFACTURED OR IMPORTED IN QUANTITIES OF 1 TONNE OR MORE , study for Explosive properties does not need to be conducted if:

—there are no chemical groups associated with explosive properties present in the molecul

 

Expert Judgement

 

Due to the absence of chemical groups associated with Explosive properties or other structural alerts this substance is not considered to exhibit Explosiveness.

There are no chemical groups associated with explosive properties present in the molecules.

This product is generally non explosive as well on the basis of the chemical structure.

 

Therefore testing for Explosive properties 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

E;R2 Risk of explosion by shock, friction, fire or other sources of ignition E;R3 Extreme risk of explosion by shock, friction, fire or other source of ignition O; R7 May cause fire O; R8 Contact with combustible material may cause fire O; R9 Explosive when mixed with combustible material F+; R12 Extremely flammable F; R11 Highly flammable F; R15 Contact with water liberates extremely flammable gas F; R17 Spontaneously flammable in air R10 Flammable

 

CLP Regulation

H242 Org. Perox. CD Heating may cause a fire H242 Org. Perox. EF Heating may cause a fire Gas: H270 Ox. Gas 1: May cause or intensify fire; oxidiser Liquid: H271 Ox. Liq 1 May cause fire or explosion; strong oxidiser Solid: H271 Ox. Sol 1 May cause fire or explosion; strong oxidiser H272: May intensify fire; oxidiser Gas: H220 Flam. Gas 1: extremely flammable gas Gas: H221 Flam. Gas 2: flammable gas Aerosol: H222 Category 1: extremely flammable aerosol Aerosol:H223 category 2: flammable aerosol Liquid: H224 Flam. Liq. 1 H242 Self-react. CD: Heating may cause a fire H242 Self-react. EF: Heating may cause a fire None Self-react. G Liquid: H224 Flam. Liq. 1, if initial boiling point <35ºC

 

 

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 explosiveness.