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Physical & Chemical properties

Flammability

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Endpoint:
substances / mixtures which in contact with water emit flammable gases
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the substance is known to be soluble in water to form a stable mixture
Endpoint:
flammable solids
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
other:
Endpoint:
pyrophoric solids
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the substance is known to be stable in contact with air at room temperature for prolonged periods of time (days) and hence, the classification procedure does not need to be applied

Description of key information

Sodium thiosulfate is non-combustible, does not emmit flammable gases in contact with water and has no pyrophoric properties.

Key value for chemical safety assessment

Flammability:
not classified

Additional information

Justification for classification or non-classification

Sodium thiosulfate does not need to be classified according to CLP Regulation (EC) No 1272/2008 since it is not highly flammable.