Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
no hazard identified

Marine water

Hazard assessment conclusion:
no hazard identified

STP

Hazard assessment conclusion:
no hazard identified

Sediment (freshwater)

Hazard assessment conclusion:
no hazard identified

Sediment (marine water)

Hazard assessment conclusion:
no hazard identified

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
no hazard identified

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

Classification related key information

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)>13.5 mg/L (measured); LC50(96h)> 100 mg/L (nominal); read across from chemical analogue

-           Aquatic invertebrates: EC50(48 h) >2.75 mg/L (measured); EC50(48 h) >100 mg/L (nominal); read across from chemical analogue-   Algae: EC50(72 h) >4.4 mg/L (measured); EC50(72 h) >100 mg/L (nominal); read across from chemical analogue

Chronic toxicity: 

-           Experimental data on the long-term toxicity of the substance are not available. Chronic toxicity of the substance is not anticipated.

Conclusion on classification

The substance magnesium hydrogen orthophosphate has a low potential for bioaccumulation. The acute aquatic toxicity L(E)C50 values are > 100 mg/L for fish, aquatic invertebrates and algae based on the results from chemical analogue.. Furthermore the substance is considered as not chronically toxic. Thus the substance does not need to be classified and labelled according to the 4th ATP of Regulation (EC) No.1272/2008 (CLP).