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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 23615267Generated: October 23, 2026

Nickel(2+) hydrogen citrate

nickel(2+) hydrogen citrate

https://huagongshe.com/en/chemical/23615267

Nickel(2+) hydrogen citrate molecular structure

Identifiers & Physical Properties

CAS No.18721-51-2
Molecular formulaC6H6NiO7
Average molar mass248.8 g/mol
Monoisotopic mass247.94669543 g/mol
SMILESO=C([O-])CC(O)(CC(=O)O)C(=O)[O-].[Ni+2]
InChIKeyPVQDBEUVVVTFSY-UHFFFAOYSA-L
PubChem CID23615267
EC No.242-533-3
DTXSIDDTXSID501029294

Chemical & Physical Properties

Topological polar surface area138
Hydrogen bond donors2
Hydrogen bond acceptors7
Rotatable bonds3
Heavy atoms14
Formal charge0
Complexity234
Density1.85g/cm3 at 21.9℃
Vapor pressure0-0Pa at 20-25℃
Physical statePowder
Surface tension59.84-61.93mN/m at 1g/L and 20-20.2℃
REACH Annex XVII Substances ListNickel(2+) hydrogen citrate (18721-51-2)
GHS pictogramGHS08,GHS09
Signal wordDanger
GHS hazard statementsH317-H334-H350i-H372-H410-H341-H360D
GHS precautionary statementsP261-P272-P280-P302+P352-P333+P313-P321-P363-P501-P260-P264-P270-P314-P501-P201-P202-P281-P308+P313-P405-P501-P261-P285-P304+P341-P342+P311-P501-P273-P391-P501
REACH registrationsActive

Safety & Regulations

GHS classificationDangerH317: May cause an allergic skin reaction [Warning Sensitization, Skin]P203, P233, P260, P261, P264, P270, P271, P272, P273, P280, P284, P302+P352, P304+P340, P318, P319, P321, P333+P317, P342+P316, P362+P364, P391, P403, P405, and P501 (click each P-code to see the statement)H290 (100%): May be corrosive to metals [Warning Corrosive to Metals]P203, P233, P234, P260, P261, P264, P264+P265, P270, P271, P272, P273, P280, P284, P301+P317, P302+P352, P304+P340, P305+P351+P338, P318, P319, P321, P330, P332+P317, P333+P317, P337+P317, P342+P316, P362+P364, P390, P391, P403, P405, P406, and P501 (click each P-code to see the statement)
Regulatory informationChemical: 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, nickel(2+) salt (1:1)Hazard Traits - CarcinogenicityReproductive ToxicityRespiratory ToxicityREACH registered substance: Nickel(2+) hydrogen citrate (EC: 242-533-3)Restricted substance: Nickel(2+) hydrogen citrate
Hazard Classes and CategoriesMet. Corr. 1 (100%)Carc. 1A
Signal wordDanger
GHS pictogramGHS08,GHS09
GHS hazard statementsH317-H334-H350i-H372-H410-H341-H360D
REACH registrationsActive
GHS precautionary statementsP261-P272-P280-P302+P352-P333+P313-P321-P363-P501-P260-P264-P270-P314-P501-P201-P202-P281-P308+P313-P405-P501-P261-P285-P304+P341-P342+P311-P501-P273-P391-P501