Hazardous and Noxious Substances Spill Incidents

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On this database it is collected information on the fate and weathering of hazardous and noxious substances (HNS) accidentally spilt at the sea around the world. It gathers and systematizes existing information to assist stakeholders involved in spill preparedness and response, and builds return of experience datasheets for the chemicals involved. It will facilitate the incorporation of lessons from past incidents on the decision process to improve preparedness.

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Poona

1971

Sweden

Europe

Packaged

HNS Spilt

Sodium chlorateSolid

NaClO3

Amount Spilt (T)36

CAS Number2146053

D

Physical Behaviour (SEBC code)

-

Pollution Category (MARPOL Annex 2)

5.1

Class according to IMDG code

-

Subsidiary Risk Class according to IMDG code

Classification as Marine Pollutant

iv

HNS Classification (2010 HNS Convention)

Fate and weathering facts observed/reported

Sodium chlorate is a powerful oxidizer. When decomposed by heat it frees oxygen and my cause fire an explosion in contact with combustibles. There was a fire for 10 days that was then extinguished. It is highly inappropriate to stow an oxidizer (sodium chlorate) and a combustible (rapeseed oil) in the same hold: Sodium chlorate is a powerful oxidizer that reacted violently with rapeseed oil, making a flammable and explosive mixture. Because of the heat of the fire, the sodium chlorate was decomposed to free oxygen, which is an exothermic and explosive chemical reaction.

Material Safety Data Sheets (MSDS)

http://www.sciencelab.com/msds.php?msdsId=9927592

Rapeseed oilLiquid

-

Amount Spilt (T)600

CAS Number-

Fp

Physical Behaviour (SEBC code)

Y

Pollution Category (MARPOL Annex 2)

3

Class according to IMDG code

-

Subsidiary Risk Class according to IMDG code

Classification as Marine Pollutant

iv

HNS Classification (2010 HNS Convention)

Material Safety Data Sheets (MSDS)

-