Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Classification & Labelling & PBT assessment

PBT assessment

Currently viewing:

Administrative data

PBT assessment: overall result

Referenceopen allclose all

Name:
diammonium tetrachlorozincate(2-)
Type of composition:
boundary composition of the substance
State / form:
solid: particulate/powder
Reference substance:
diammonium tetrachlorozincate(2-)
Name:
diammonium tetrachlorozincate(2-)
Type of composition:
legal entity composition of the substance
State / form:
solid: particulate/powder
Related composition:
diammonium tetrachlorozincate(2-)
Reference substance:
diammonium tetrachlorozincate(2-)
PBT status:
PBT assessment does not apply
Justification:

According to regulation (EC) 1907/2006 (REACH) a PBT and vPvB assessment shall usually be conducted as foreseen in Article 14 (3) (d) in conjunction with Annex I Section 4 and according to the criteria laid down in Annex XIII. However, according to Annex XIII a PBT and vPvB assessment shall not be conducted for inorganic substances. Diammonium tetrachlorozincate(2-)

is an inorganic substance, thus a PBT and vPvB assessment is not required.

Still, the points below are raised:

Zinc is a natural, essential element, which is needed for the optimal growth and development of all living organisms, including man. All living organisms have homeostasis mechanisms that actively regulate zinc uptake and absorption/excretion from the body; due to this regulation, zinc and zinc compounds do not bioaccumulate or biomagnify.

Zinc is an element, and as such the criterion “persistence” is not relevant for the metal and its inorganic compounds in a way as it is applied to organic substances. The removal of inorganic substances from the water column has been discussed as a surrogate for persistence. In section 4.6., the rapid removal of zinc from the water column is documented. So, zinc does not meet this criterion, neither.

Considering the above, zinc and zinc compounds are not PBT or vPvB.