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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 204-976-0 | CAS number: 130-14-3
Endpoint summary
Administrative data
Description of key information
Hydrolysis:
The hydrolysis half-life value of the test chemical sodium naphthalene-1-sulfonate (CAS no. 130-14-3) can be expected to be in range 5 -6 years at pH 7 and 200-211 days at pH 8 and Hydrolysis rate constant in range 0.038 L/mol-sec – 0.04 L/mol-sec. Based on these half-life values, it is concluded that the test chemical sodium naphthalene-1-sulfonate is not hydrolysable.
Additional information
Hydrolysis:
Data available for the structurally and functionally similar read across chemicals has been reviewed to determine the half-life of the test chemical sodium naphthalene-1-sulfonate (CAS no. 130-14-3).The studies are as mentioned below.
The first experimental study was reviewed from authoritative database (HSDB, 2018) in this study the half-life and base catalyzed second order hydrolysis rate constant was determined using a structure estimation method of the test chemical. The second order hydrolysis rate constant of test chemical was determined to be 0.038 L/mol-sec with a corresponding half-life of 6 yrs and 211 days at pH 7 and 8, respectively. Based on the half-life values, it is concluded that test chemical is not hydrolysable.
Next experimental study was also reviewed from authoritative database mentioned above in this study the base catalyzed second order hydrolysis rate constant was determined using a structure estimation method. The second order hydrolysis rate constant is determined to be 4.0 × 10-2 L/mol-sec with a corresponding half lives of 5 years and 200 days at pH 7 and 8, respectively. Based on the half-life values, it is concluded that the test chemical is not hydrolysable.
On the basis of the experimental studies of the structurally and functionally similar read across chemical and applying the weight of evidence approach, the hydrolysis half-life value of the test chemical sodium naphthalene-1-sulfonate (CAS no. 130-14-3) can be expected to be in range 5 -6 years at pH 7 and 200-211 days at pH 8 and Hydrolysis rate constant in range 0.038 L/mol-sec – 0.04 L/mol-sec. Based on these half-life values, it is concluded that the test chemical sodium naphthalene-1-sulfonate is not hydrolysable.
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.
