Registration Dossier

Physical & Chemical properties

Oxidising properties

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

Data waiving applied since the test substance does not contain any chemical groups associated with oxidising properties.

Key value for chemical safety assessment

Oxidising properties:
no

Additional information

An oxidising substance is one that, while in itself not necessarily combustible, may cause or contribute to the combustion of other material. According to the Method A21, Oxidising Properties (Liquids) of Council Regulation EC) No 440/2008 of 30 May 2008, “…this test need not be performed when examination of the structural formula establishes beyond reasonable doubt that the substance is incapable of reacting exothermically with a combustible material. ” Numerous chemical groups have been associated with oxidising properties. Examples of such groups are included in table below:

Chemical groups associated with oxidising properties

 

Chemical group(s)

Chemical classes

Nitrates (salts or esters)

NO3-M+

O2N-O-R

Nitrites (salts or esters)

NO2-M+

ON-O-R

Organic nitro compounds (aryl and alkyl)

NO2-R

NO2-Ar

Fluorodinitro

(NO2)2-C-(F) -

Metal oxides

MOn

Metal oxometallates

M+MOn

N - Halogen compounds

N-X

N – Haloimides

-C(O) -NX-C(O) -

Difluoroamino

- NF2

Difluoroaminopolynitroaryl

(NO2) n-Ar-NF2

Oxohalogen compounds:

·        Acyl hypohalites

·        Hypofluorites

·        Bis(fluoroxy) perhaloalkanes

·        Perchlorates

·        Chlorates

·        Chlorites

·        Hypochlorites

·        Perbromates

·        Bromates

·        Bromites

·        Hypobromites

·        Periodates

·        Iodates

·        Difluoroperchloryl salts

·        Dioxygenyl polyfluoro salts

 

·   R C(O) -OX

·   FO-

·   F3CCI(OF)2etc.

·   ClO4-

·   ClO3-

·   ClO2-

·   ClO-

·   BrO4-

·   BrO3-

·   BrO2-

·   BrO-

·   IO4-

·   IO3-

·   F2ClO2+Z-

·   O2+ [MFn]- or O2+ [EFn]-

Interhalogen compounds (metal polyhalohalogenates)

M+ [XX’n]-

Adapted from Bretherick’s Handbook of Reactive Chemical Hazards. Source: European Chemicals Agency (ECHA). (2008). Guidance on information requirements and chemical safety assessment. Chapter R.7a: Endpoint specific guidance

The oxidising properties of amides, C12-18 (even numbered) and C18-unsatd., N,N-bis(hydroxyethyl) were predicted based on its structure as per Method A21 and considering the guidance provided in the section R.7.1.13.3 of Chapter R.7a: ECHA Endpoint specific guidance. The structure of amides, C12-18 (even numbered) and C18-unsatd., N,N-bis(hydroxyethyl) was assessed and found not to have functionality or chemical groups associated with oxidising properties or that could imply oxidising properties.

Justification for classification or non-classification

In accordance with Annex VII Column 2 adaptation of REACH, testing for oxidising property for amides, C12-18 (even numbered) and C18-unsatd., N,N-bis(hydroxyethyl) is not deemed necessary based on its chemical structure i.e. it does not contain any chemical groups associated with oxidising properties considering the guidance provided in the section R.7.1.13.3 of Chapter R.7a: REACH Technical Guidance Document.