Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Administrative data

Endpoint:
toxicity to microorganisms
Type of information:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Study period:
1992
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: DIN 38412 Part 8 - Determination of the inhibitory effect of water cinstituent on bacteria (Pseudomonas cell multiplication inhibition test)

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
2000

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
DIN 38412-8 (Pseudomonas Zellvermehrungshemmtest)
GLP compliance:
not specified

Test material

Constituent 1
Reference substance name:
Potassium sulfate
EC Number:
231-915-5
EC Name:
Potassium sulfate
Cas Number:
7778-80-5
Molecular formula:
H2O4S.2K
Test material form:
solid: crystalline
Details on test material:
Potassium sulphate, containing in the dry state more than 52 per cent by weight of K2O.
Molecular formula: H2O4S.2K
Molecular weight: 174,26
Specific details on test material used for the study:
Details on properties of test surrogate or analogue material (migrated information):
PHYSICO-CHEMICAL PROPERTIES
- Melting point: 1069°C
- Boiling point: 1689 °C
- Vapour pressure: not applicable
- Water solubility (under test conditions): 11,1 vol% at 20°C
- log Pow: not applicable
- Stability in water: the product is stable in water
- Stability in light: the product is not photodegradable
- pH dependance on stability: 5,5-7,5 at 50g/l and 20°C

OTHER PROPERTIES (if relevant for this endpoint)
- Results of test for ready biodegradability: not applicable

Sampling and analysis

Analytical monitoring:
not specified

Test organisms

Test organisms (species):
Pseudomonas putida

Study design

Test type:
not specified
Total exposure duration:
16 h

Results and discussion

Effect concentrations
Duration:
16 h
Dose descriptor:
other: No toxic effect
Effect conc.:
ca. 2 000 mg/L

Applicant's summary and conclusion