Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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
Endpoint summary
Administrative data
Description of key information
Bioaccumulation: aquatic / sediment:
The estimated bio concentration factor (BCF) for tetrabutylammonium hydrogen sulphate is 70.79 L/kg whole body w.w which does not exceed the bio concentration threshold of 2000. Thus it is concluded that tetrabutylammonium hydrogen sulphate is not expected to bioaccumulate in the food chain.
Additional information
Bioaccumulation: aquatic / sediment:
For bioaccumulation in aquatic environment, 3 studies for the test chemical Tetrabutylammonium hydrogen sulphate (Cas no. 32503-27-8) were reviewed as follows:
From the EPI suite Program (2017); using BCFBAF (v3.01) model the Bioaccumulation factor (BCF) was predicted to be 70.79 L/kg wet-wt at 25 deg.C for target tetrabutylammonium hydrogen sulphate which does not exceed the bio concentration threshold of 2000. Thus it is concluded that tetrabutylammonium hydrogen sulphate is not expected to bioaccumulate in the food chain.
Another prediction database PBT profiler; 2017 indicated the Bioaccumulation factor (BCF) was predicted to be 71 L/kg wet-wt at 25 deg.C for target chemical tetrabutylammonium hydrogen sulphate.
In addition, a study from Japan chemicals collborative knowledge database (J-check); 2017 for the read across chemical Tetra-n-propylammonium bromide (Cas no. 1941-30-6) indicate that according to guideline OECD Guideline 305 C (Bioaccumulation: Test for the Degree of Bioconcentration in Fish), the BCF value for Tetra-n-propylammonium bromide (Cas no. 1941-30-6) was determined to be <= 0.3 L/kg at dose concentration 2 mg/L and <= 2.8 L/kg at dose concentration 0.2 mg/L on test organism Cyprinus carpio during 6 weeks period. Thus based on the BCF value it is concluded that the test substance Tetra-n-propylammonium bromide is non bioaccumulative in nature.
Experimental study data of read across chemical supports the predicted result of the target chemical which indicate the Bioaccumulation value (BCF) is in the range <= 0.3 -71 for target chemical Tetrabutylammonium hydrogen sulphate.Thus based on available BCF range, we can conclude that the test substance Tetrabutylammonium hydrogen sulphate (Cas no. 32503-27-8) is non bioaccumulative in aquatic environment.
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.
