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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Additional ecotoxological information

Currently viewing:

Administrative data

Endpoint:
additional ecotoxicological information
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
3 (not reliable)
Rationale for reliability incl. deficiencies:
other: Study comparing the effects of the substance between them without reporting the effect of the substance by itself.

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
1958

Materials and methods

Test guideline
Qualifier:
no guideline followed
GLP compliance:
no
Type of study / information:
Comparison of the effects of pyrophosphoric acid, phosphoric acid and triphosphoric adenosine (TPA) on the growth rate of chlorella pyrenoidosa chick, on photosynthetic rate of O2 emission and on assimilation of CO2 rate.

Test material

Constituent 1
Chemical structure
Reference substance name:
Orthophosphoric acid
EC Number:
231-633-2
EC Name:
Orthophosphoric acid
Cas Number:
7664-38-2
Molecular formula:
H3O4P
IUPAC Name:
phosphoric acid
Details on test material:
no data

Results and discussion

Applicant's summary and conclusion

Conclusions:
Pyrophosphoric acid achieves a growth rate on chlorella pyrenoidosa chick slightly higher than phosphoric acid at a concentration of 3E-4.
TPA may bring an accelerating action compared to phosphoric acid.
No difference on O2 emission were observed for algae exposed to pyrophosphoric or phosphoric acid.
Algae exposed to ATP show a photosynthetic activity sliightly higher than algae exposed to phosphoric acid.
Regarding CO2 absorption, stimulating action is higher for phosphoric acid than for pyrophosphoric acid or ATP.