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Surface tension

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Description of key information

In accordance with column 2 of Annex VII of the REACH regulation, the study need only be conducted if surface activity is a desired property of the chemical. The chemical 4-aminoazobenzene-3,4'-disulphonic acid is used as an intermediate to manufacture other chemicals. For this use, surface activity is not desired property. Hence this study was considered for waiver.

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Additional information

In accordance with column 2 of Annex VII of the REACH regulation, the study need only be conducted if surface activity is a desired property of the chemical. The chemical 4-aminoazobenzene-3,4'-disulphonic acid is used as an intermediate to manufacture other chemicals. For this use, surface activity is not desired property. Hence this study was considered for waiver.