Registration Dossier
Registration Dossier
Diss Factsheets
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: 940-441-4 | CAS number: -
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data

Additional information on environmental fate and behaviour
Administrative data
- Endpoint:
- additional information on environmental fate and behaviour
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- other: Scientific publication, thereof only the abstract was accessed since the article is written in Japanese and the subjects was considered too unimportant for translation
Data source
Reference
- Reference Type:
- publication
- Title:
- Thiobacillus ferrooxidans. Experimental study on formation of jarosite and ammoniojarosite associated with Thiobacillus ferrooxidans [in Japanese]
- Author:
- Koiwasaki K, Honbou H, Tazaki K, Mori T
- Year:
- 1 993
- Bibliographic source:
- ISSN 03666611 Chikyu Kagaku (Chigaku Dantai Kenkyukai, The Association for the Geological Collaboration in Japan AGCJ) 47(6):493-506. URL http://ci.nii.ac.jp/naid/110007092862
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Formation of Jarisite crystals was observed in absence and in presence of Thiobacillus ferrooxidans
- GLP compliance:
- no
Test material
- Reference substance name:
- Jarosite (K(Fe3(OH)6(SO4)2))
- IUPAC Name:
- Jarosite (K(Fe3(OH)6(SO4)2))
- Reference substance name:
- 12207-14-6
- Cas Number:
- 12207-14-6
- IUPAC Name:
- 12207-14-6
- Details on test material:
- - Name of test material (as cited in study report):
- Molecular formula (as other than submission substance): Fe3-H6-O14-S2.K
- Molecular weight (as other than submission substance): 500.7984 g/mol
- Smiles notation (if other than submission substance): [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[K+].[Fe+3].[Fe+3].[Fe+3]
- InChl (if other than submission substance): 1S/3Fe.K.2H2O4S.6H2O/c;;;;2*1-5(2,3)4;;;;;;/h;;;;2*(H2,1,2,3,4);6*1H2/q3*+3;+1;;;;;;;;/p-10
Constituent 1
Constituent 2
Results and discussion
Any other information on results incl. tables
Bacillus bacterial cells took the form of cross-finger. Both iron and sulphur components precipitated on the cell wall. The iron component took the form of burs, whereas the sulphur component formed rosary-shaped materials. The sizes of iron materials ranged from 0.5 to 2.0 μm in diameter while those of sulphur materials ranged from 0.05 to 0.1μm in diameter. Next, potassium and hydroxyl in 9 K-medium reacted on both iron and sulphur components on the cell wall.
Cubic or platy jarosite, 0.1 to 5.0μm in diameter, was formed within 3 days. Jarosite of final products changed to reform rosary or parallel crystalline materials. Potassium in jarosite was substituted for ammonia to form ammoniojarosite within 5 days.
Jarosite was produced by bacterial mineralization in 9 K-medium within 3 days, and those of ammoniojarosite within 5 days. Without Thiobacillus ferrooxidans, jarosite and ammoniojarosite were produced after 5 or 9 days respectively.
In conclusion the results suggest that Thiobacillus ferrooxidans contributes to the formation of jarosite and ammoniojarosite as catalyst.
Applicant's summary and conclusion
- Conclusions:
- Thiobacillus ferrooxidans contributes to the formation of jarosite and ammoniojarosite as catalyst.
- Executive summary:
Jarosite KFe3(SO4)2(OH)6 and ammoniojarosite NH4Fe3(SO4)2(OH)6 were experimentaly formed in 9 K-medium with gram negative, obligately autotrophic and aerobic Proteobacteria (Thiobacillus ferrooxidans) at 33 ℃ under acidic condition. The product shows characteristic peaks of jarosite at 3.08, 1.99 and 1.83 A and those of ammoniojarosite at 3.09, 5.12, 1.98 and 1.83 A in use X-ray powder diffraction and electron diffraction pattern. Transmission Electron Microscopy (TEM) and Scanning Electron Microscopy (SEM) observations revealed the crystal growth processes of these minerals.
Bacillus bacterial cells took the form of cross-finger. Both iron and sulphur components precipitated on the cell wall. The iron component took the form of burs, whereas the sulphur component formed rosary-shaped materials. The sizes of iron materials ranged from 0.5 to 2.0 μm in diameter while those of sulphur materials ranged from 0.05 to 0.1μm in diameter. Next, potassium and hydroxyl in 9 K-medium reacted on both iron and sulphur components on the cell wall.
Cubic or platy jarosite, 0.1 to 5.0μm in diameter, was formed within 3 days. Jarosite of final products changed to reform rosary or parallel crystalline materials. Potassium in jarosite was substituted for ammonia to form ammoniojarosite within 5 days.
Jarosite was produced by bacterial mineralization in 9 K-medium within 3 days, and those of ammoniojarosite within 5 days. Without Thiobacillus ferrooxidans, jarosite and ammoniojarosite were produced after 5 or 9 days respectively.
In conclusion the results suggest that Thiobacillus ferrooxidans contributes to the formation of jarosite and ammoniojarosite as catalyst.
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.
