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hexasodium hexametaphosphate

Structure via PubChem · Public domain (PubChem)

EntityQ3116769· pop 17· linked from 255 articles

hexasodium hexametaphosphate

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Also known as sodium hexametaphosphate

chemical compound

Chemical data

Formula
Na6O18P6
Molecular weight
611.77 g/mol
IUPAC name
hexasodium;2,4,6,8,10,12-hexaoxido-1,3,5,7,9,11-hexaoxa-2lambda5,4lambda5,6lambda5,8lambda5,10lambda5,12lambda5-hexaphosphacyclododecane 2,4,6,8,10,12-hexaoxide
SMILES
[O-]P1(=O)OP(=O)(OP(=O)(OP(=O)(OP(=O)(OP(=O)(O1)[O-])[O-])[O-])[O-])[O-].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+]
InChIKey
GCLGEJMYGQKIIW-UHFFFAOYSA-H
Polar surface area
296 Ų
H-bond donors
0
H-bond acceptors
18
Formal charge
0

via PubChem

Wikidata facts

Subclass of
macrocycle
Has part
phosphorus
Mass
611.69
Show 5 more facts
canonical SMILES
[O-]P1(=O)OP(=O)(OP(=O)(OP(=O)(OP(=O)(OP(=O)(O1)[O-])[O-])[O-])[O-])[O-].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+]
chemical formula
Na₆O₁₈P₆
Commons category
Sodium hexametaphosphate
decomposition point
450
Wikidata usage instructions
In many sources, the name “sodium hexametaphosphate” is used for mixtures of sodium polyphosphates rather than a single well-defined compound. In such cases, especially in industrial applications (e.g. detergents and water treatment), the material may correspond to Graham’s salt (Q72507913) or related sodium polyphosphate mixtures rather than a pure cyclic hexametaphosphate.
Sources (2)

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