Registration Dossier
Registration Dossier
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 251-068-5 | CAS number: 32503-27-8
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Hazard for air
Hazard for terrestrial organisms
Hazard for predators
Additional information
Acute toxicity
No experimental data are available regarding aquatic toxicity of tetrabutylammonium hydrogen sulphate. The substance is included by QSAR toolbox in the US-EPA New Chemicals categories of cationic (quaternary ammonium) surfactant. As reported in the explanation provided by QSAR toolbox cationic surfactants are biocidal to a wide array of species in the environment. Toxicity increases exponentially with increasing carbon chain length up to 16 carbons and then decreases with increasing chain length.
Predicted value by ECOSAR v.1.11 for tetrabutylammonium hydrogen sulphate using special class cationic surfactant (quaternary ammonium surfactants, tetralkyl) are:
LC50 96h fish = 269000 mg/l
LC50 48h Daphnid = 177.490mg/l
There is no reason of concern regarding short-term aquatic toxicity of tetrabutylammonium hydrogen sulphate based on these predicted values. The acute aquatic toxicity values for TBHS are higher than expected for generic surfactant probably due to the short length of the surfactant alkyl chain.
Chronic toxicity:
There are no available studies for chronic toxicity to aquatic environment of tetrabutylammonium hydrogen sulphate.
According to the CLP Regulation (EC n. 1272/2008), no classification regarding aquatic toxicity is proposed for tetrabutylammonium hydrogen sulphate.
Conclusion on classification
According to the CLP Regulation (EC n. 1272/2008), no classification regarding aquatic toxicity is proposed for tetrabutylammonium hydrogen sulphate.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
