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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 220-678-3 | CAS number: 2861-02-1
pH
Administrative data
- Endpoint:
- acidity / alkalinity
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: according to the method of YOUNG
Data source
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: method of YOUNG
- Version / remarks:
- J.R. Young et al., Toxic. in Vitro Vol. 2, No. 1, pp. 19 -26, 1988
- GLP compliance:
- no
Test material
- Reference substance name:
- Disodium 4,8-diamino-1,5-dihydroxy-9,10-dioxoanthracene-2,6-disulphonate
- EC Number:
- 220-678-3
- EC Name:
- Disodium 4,8-diamino-1,5-dihydroxy-9,10-dioxoanthracene-2,6-disulphonate
- Cas Number:
- 2861-02-1
- Molecular formula:
- C14H10N2O10S2.2Na
- IUPAC Name:
- disodium 4,8-diamino-1,5-dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2,6-disulfonate
Constituent 1
Reagents
- Reagent:
- H2SO4 solution
Titration of acidity and alkalinity
- Details on titrant used:
- - Titer of titrant used: 0.5 m sulfuric acid solution
Results and discussion
pH value
- pH value:
- 11.25
- Remarks on result:
- other: initial pH of 10 % aqueous solution, mean of 2 measurements
Any other information on results incl. tables
2 measurements were performed:
run no 1: pH 11.3, titration volume to pH 10.0: 1.568 mL for 100 g of the 10 % test substance solution, resulting in 6.27 g NaOH/100 g test substance
run no 2: pH 11.2, titration volume to pH 10.0: 1.562 mL for 100 g of the 10 % test substance solution, resulting in 6.25 g NaOH/100 g test substance
mean: 6.26 g NaOH/100 g test substance
Applicant's summary and conclusion
- Conclusions:
- Based on the determined alkali reserve and calculation according to YOUNG the test substance cannot be assumed as corrosive or irritant.
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.
