Registration Dossier
Registration Dossier
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EC number: 242-522-3 | CAS number: 18718-11-1
Endpoint summary
Administrative data
Description of key information
Value used for CSA: corrosive (skin) - due to the phosphoric acid (<11% ) impurity
Value used for CSA: serious eye damage (eye) - due to the phosphoric acid (<11% ) impurity
Key value for chemical safety assessment
Skin irritation / corrosion
Endpoint conclusion
- Endpoint conclusion:
- adverse effect observed (corrosive)
Eye irritation
Endpoint conclusion
- Endpoint conclusion:
- adverse effect observed (irreversible damage)
Additional information
No studies characterizing irritation/corrosion associated with nickel bis(dihydrogen phosphate) were identified.
Although no irritation study has been conducted with Nickel bis(dihydrogen phosphate), this substance is actually a solution that inherently contains phosphoric acid as an impurity, needed to stabilize the substance and keep it in solution (it turns gel-like without the phosphoric acid). This results in nickel bis(dihydrogen phosphate) having a low pH that, in addition to the composition of phosphoric acid, causes skin corrosion and eye damage warranting classification of Skin Corrosion 1B and Eye Damage 1.
The available data do not allow any conclusion on respiratory irritation.
The following information is taken into account for any hazard / risk assessment:
Nickel bis(dihydrogen phosphate) is a solution that inherently contains ≤11% phosphoric acid as an impurity, needed to stabilize the substance and keep it in solution (it turns gel-like without the phosphoric acid), resulting in a low pH that causes skin corrosion and eye damage, warranting classification as Skin Corrosion 1B and Eye Damage 1 classifications.
Justification for classification or non-classification
Ni bis(dihydrogen phosphate) is not classified for irritation or corrosion according to the 1st ATP to the CLP Regulation. However, nickel bis(dihydrogen phosphate) is a solution that inherently contains ≤11% phosphoric acid as an impurity, needed to stabilize the substance and keep it in solution (it turns gel-like without the phosphoric acid). The low pH of the nickel bis(dihydrogen phosphate) solution containing phosphoric acid (≤11% ) results a low pH which triggers classifications for Skin Corrosion 1B and Eye Damage 1.
The available data do not allow any conclusion on respiratory irritation.
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