Registration Dossier
Registration Dossier
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EC number: 231-837-1 | CAS number: 7758-23-8
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:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Well documented and acceptable for assessment.
Data source
Reference
- Reference Type:
- publication
- Title:
- Nature of reactions with monocalcium phosphate monohydrate in soils: IV. Repeated reactions with metastable triple point solution.
- Author:
- Lindsay WJ & Stephenson HF
- Year:
- 1 959
- Bibliographic source:
- Soil Sci Soc Am J. 23(6):440-445
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Guideline:
- other: no data.
- Deviations:
- not applicable
- Principles of method if other than guideline:
- A series of soil samples were reacted with solutions saturated in monocalcium phosphate monohydrate. In an attempt to simulate the changing chemical environment of soil surrounding a superphosphate granule.
- GLP compliance:
- not specified
- Type of study / information:
- Reactions of monocalcium phosphate monohydrate with soils.
Test material
- Reference substance name:
- Calcium bis(dihydrogenorthophosphate)
- EC Number:
- 231-837-1
- EC Name:
- Calcium bis(dihydrogenorthophosphate)
- Cas Number:
- 7758-23-8
- Molecular formula:
- CaH4O8P2
- IUPAC Name:
- calcium dihydrogen phosphate
- Details on test material:
- - Name of test material (as cited in study report): monocalcium phosphate monohydrate.
Constituent 1
Results and discussion
Any other information on results incl. tables
When placed in soil, monocalcium phosphate dissolves readily. Its dissolution is limited only by the rate at which water can reach the fertiliser granule.
Applicant's summary and conclusion
- Conclusions:
- Monocalcium phosphate monohydrate dissolves readily when placed in soil and undergoes partial hydrolysis to dicalcium phosphate dihydrate.
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