Physical and chemical properties,Explosivness, Oxidising properties

Physical and chemical properties

• Endpoint summary
• Appearance / physical state / colour
• Melting point / freezing point
• Boiling point
• Density
• Particle size distribution (Granulometry)
• Vapour pressure
• Partition coefficient
• Water solubility
• Solubility in organic solvents / fat solubility
• Surface tension
• Flash point
• Auto flammability
• Flammability
• Explosiveness
• Oxidising properties
• Oxidation reduction potential
• Stability in organic solvents and identity of relevant degradation products
• Storage stability and reactivity towards container material
• Stability: thermal, sunlight, metals
• pH
• Dissociation constant
• Viscosity
• Additional physico-chemical information

Oxidising properties

Administrative data

Purpose flag:

weight of evidence

Data waiving:

study scientifically unjustified

Study result type:

no data

Reliability:

4 (not assignable)

Rationale for reliability incl. deficiencies:

Data comes from an online compilation using secondary data sources, and therefore cannot be assigned as reliable. However, please note that the endpoint is cited in the database as peer reviewed.

Data source

Reference

Reference Type:

secondary source

Title:

Unnamed

Report Date:

2006

Materials and methods

Principles of method if other than guideline:

No data.

Test materials

Identity of test material same as for substance defined in section 1 (if not read-across):

yes

Test material identity

Identifier:

CAS number

Identity:

10049-04-4

Results and discussion

Any other information on results incl. tables:

Explodes when heated or by reaction with organics. [1]

Reacts violently with organic materials. [2]

Incompatible with other combustible materials, organic matters, and solvents. [3]

The gas and liquid are violently decomposed by organic materials. The gas will decompose at temperatures below the boiling point of water. [4]

Applicant's summary and conclusion

Executive summary:

The HSDB database provides information, from several sources, relating to oxising properties of the substance Chlorine dioxide, in particular explosive potential if contact with organic materials.

Explosiveness

Administrative data

Purpose flag:

supporting study

Study result type:

no data

Reliability:

4 (not assignable)

Rationale for reliability incl. deficiencies:

Data comes from reviews using secondary data sources, and therefore cannot be assigned as reliable.

Data source

Referenceopen allclose all

Reference 1

Reference Type:

secondary source

Title:

Unnamed

Year:

2002

Reference 2

Reference Type:

secondary source

Title:

SODIUM CHLORITE/CHLORINE DIOXIDE

Author:

OECD

Year:

2006

Bibliographic source:

SIDS Initial Assessment Report - http://webnet.oecd.org/Hpv/UI/handler.axd?id=a7f7389d-e220-45a3-84dc-3cd3e6bfcae9

Materials and methods

Principles of method if other than guideline:

No data.

Test materials

Identity of test material same as for substance defined in section 1 (if not read-across):

yes

Test material identity

Identifier:

CAS number

Identity:

10049-04-4

Results and discussion

Explosive under influence of flame:

yes

Explosive (not specified):

yes

Remarks:

sunlight

Any other information on results incl. tables:

Chlorine dioxide gas is explosive in concentrations in excess of 10% v/v at atmospheric pressure and will easily be detonated by sunlight or heat (Budavari et al., 1996).

It is marketed and transported as a stabilized aqueous solution generally less than 1% w/v (more concentrated forms are explosive).

Applicant's summary and conclusion

Executive summary:

The international CICAD review and the OECD SIDS report provide information relating to explosive potential of the gas Chlorine dioxide, cited from the Merck Index, when heated or exposed to sunlight. Dilute aqueous solutions are stable (<1%w/v).