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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.006 mg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.061 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.001 mg/L
Assessment factor:
10 000
Extrapolation method:
assessment factor
PNEC marine water (intermittent releases):
0.006 mg/L

STP

Hazard assessment conclusion:
no hazard identified

Sediment (freshwater)

Hazard assessment conclusion:
no exposure of sediment expected

Sediment (marine water)

Hazard assessment conclusion:
no exposure of sediment expected

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
no exposure of soil expected

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

The concept of ready biodegradability does not apply to inorganic substances.

Significant bioaccumulation in biota is not expected for this substance (see IUCLID section 5.3).

Acute toxicity:

-             Fish: LC50(96h): LC50 >500 mg/L (Cyprinodon variegatus)

-            Aquatic invertebrates: LC50(48 h): 14.55 mg Ba/L (Daphnia magna)

-            Algae: EC50(72 h): 6.07 mg barium bis(dihydrogenorthophosphate) /L (Raphidocelis subcapitata)

 

Chronic toxicity: 

-            Algae: NOEC(72 h): 2.5 mg/L (Raphidocelis subcapitata)

-            Aquatic invertebrates: EC50(21d): 8.9 mg Ba/L (Daphnia magna)

Conclusion on classification

The substance barium bis(dihydrogen orthophosphate) has a low potential for bioaccumulation. The acute aquatic toxicity EC50 value determined for algae is 6.07 mg/L. All other available acute EC50 values are >10 mg/L (fish, aquatic invertebrates.). The available NOECs are > 1 mg/L. The substance is readily soluble and the solubility is greater than the acute and chronic ERV. In this case the classification of aquatic toxicity substance should be derived based on aquatic toxicity test data. Where E(L)C50 of acute fish, daphnia and algae and NOECof algae are above of trigger values, no acute and chronic classification need to be assigned to barium bis(dihydrogen orthophosphate) according to Regulation (EC) No.1272/2008 (CLP) and amending regulations (ATPs).