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Physical & Chemical properties

Flammability

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
flammable solids
Data waiving:
study technically not feasible
Justification for data waiving:
the study does not need to be conducted because the substance is a solid
other:

Description of key information

Flammability
Justification For data Waiving (ECHA TGD ref 7.1.10)

From the compositional description and the structural formula given, it can be concluded that this substance CAS 12136-45-7 , (EINECS) 235-227-6 is not pyrophoric (will not ignite or emit flammable gases on contact with air, damp air, or water) nor does it exhibit the property of flammability (will not easily burn when ignited or contribute to the combustion of other materials). There are no functional groups or other structural alerts present that would support any concern that this substance should be classified as dangerous according to the criteria for evaluating flammability, which is furthermore confirmed by long term handling experience.
According “ANNEX VII - STANDARD INFORMATION REQUIREMENTS FOR SUBSTANCES MANUFACTURED OR IMPORTED IN QUANTITIES OF ONE TONNE OR MORE” the study does not need to be conducted if the substance is incapable of reacting exothermically with combustible materials, on the basis of the chemical structure.
This product is mostly nonflammable and non-combustible.
The substance is from Reactive Group-Bases, Strong. Its functional groups indicate no Flammability . Flammability is not considered critical.
Materials in this group are generally nonflammable. They may accelerate the combustion of other materials by providing oxygen to the combustion site, that is, by serving as oxidizing agents.
EU Test method A17 for determination of Flammability states that the test need not be performed when examination of the structural formula established beyond reasonable doubt that the substance is in capable of reacting exothermically with a combustible material.

Key value for chemical safety assessment

Flammability:
non flammable

Additional information

Flammability

Justification For data Waiving (ECHA TGD ref 7.1.10)

From the compositional description and the structural formula given, it can be concluded that this substance CAS 12136-45-7 , (EINECS) 235-227-6 is not pyrophoric (will not ignite or emit flammable gases on contact with air, damp air, or water) nor does it exhibit the property of flammability (will not easily burn when ignited or contribute to the combustion of other materials). There are no functional groups or other structural alerts present that would support any concern that this substance should be classified as dangerous according to the criteria for evaluating flammability, which is furthermore confirmed by long term handling experience.

According “ANNEX VII - STANDARD INFORMATION REQUIREMENTS FOR SUBSTANCES MANUFACTURED OR IMPORTED IN QUANTITIES OF ONE TONNE OR MORE” the study does not need to be conducted if the substance is incapable of reacting exothermically with combustible materials, on the basis of the chemical structure.

This product is mostly nonflammable and non-combustible.

The substance is from Reactive Group-Bases, Strong. Its functional groups indicate no Flammability . Flammability is not considered critical.

Materials in this group are generally nonflammable. They may accelerate the combustion of other materials by providing oxygen to the combustion site, that is, by serving as oxidizing agents.

EU Test method A17 for determination of Flammability states that the test need not be performed when examination of the structural formula established beyond reasonable doubt that the substance is in capable of reacting exothermically with a combustible material.

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

Liquid: H225 Flam. Liq. 2, if initial boiling point >35ºC

Solid: H228: Flammable solid

Solid: H250, Pyr. Liq. 1: Catches fire spontaneously if exposed to air

Liquid: H250, Pyr. Sol. 1: Catches fire spontaneously if exposed to air

Liquid: H224 Flam. Liq. 1, if flashpoint<23ºC and initial boiling point<35ºC

Liquid: H225 Flam. Liq. 2, if flashpoint<23ºC and initial boiling point>35ºC

Liquid: H226 Flam. Liq. 3, if flashpoint>23ºC

H200: unstable explosive

H201: explosive; mass explosion hazard

H202: explosive; severe projection hazard

H203: explosive; fire, blast or projection hazard

H204: Fire or projection hazard

H205: may mass explode in fire

H280: contains gas under pressure; may explode if heated

H281: contains refrigerated gas; may cause cryogenic burns or injury

H240: heating may cause an explosion

H241: Heating may cause a fire or explosion

H251: Self-heating; may catch fire

H252: Self-heating in large quantities; may catch fire

H260: In contact with water releases flammable gases which may ignitespontaneously

H261: In contact with water releases flammable gases

H290: May be corrosive to metals

 

 

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 flammability.