Phosphoric acid, disodium salt, heptahydrate

HCID 6096963

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Basic information

CAS: 7782-85-6
Standard SMILES: O.O.O.O.O.O.O.O=P([O-])([O-])O.[Na+].[Na+]
InChIKey: PYLIXCKOHOHGKQ-UHFFFAOYSA-L
Molecular formula: H15Na2O11P
Average molar mass: 268.07 g/mol
Monoisotopic mass: 268.01473649

Overview

See also: Disodium heptahydrate hydrogen phosphate (annotation moved to).

Names & identifiers

Preferred name: Phosphoric acid, disodium salt, heptahydrate
IUPAC: disodium;hydrogen phosphate;heptahydrate

Names & synonyms

Phosphoric acid, disodium salt, heptahydrateRefChem:560357782-85-6Sodium phosphate dibasic heptahydrateSodium phosphate, dibasic, heptahydrateDisodium phosphate heptahydrateUNII-70WT22SF4Bdisodium;hydrogen phosphate;heptahydrate70WT22SF4BSodium hydrogen phosphate heptahydrateSodium phosphate, diabasic, heptahydrateSodium monohydrogen phosphate heptahydrate (2:1:1:7)

Show more names

MFCD00149180Disodium Hydrogen Phosphate Heptahydrate; Disodium Orthophosphate Heptahydrate; Disodium Phosphate Heptahydrate; Sodium Monohydrogen Phosphate Heptahydrate; Sodium Phosphate (Na2HPO4) Heptahydrate;disodium hydrogenphosphate heptahydrateDIBASIC SODIUM PHOSPHATE HEPTAHYDRATEH15Na2O11PSCHEMBL275060orb2942241Sodiumphosphatedibasicheptahydrate

Database identifiers

CAS: 7782-85-6
PubChem CID: 6096963
DTXSID: DTXSID10872533
UNII: 70WT22SF4B

Properties

Computed structural propertiesFilling in

Topological polar surface area: 90.4 Å²
Hydrogen bond donors: 8
Hydrogen bond acceptors: 11
Rotatable bonds: 0
Heavy atoms: 14
Formal charge: 0
Complexity: 46.5

Experimental & physicochemical properties

Chemical ClassesMetals -> Phosphates, Metallic Salts

Human Drugs · 2 items

FDA approved drugs -> Active ingredient

Food Contact SubstancesFCS -> FDA Inventory of Food Contact Substances Listed in 21 CFR

Physical DescriptionSolid; [Merck Index] White odorless crystals; [Alfa Aesar MSDS]

Safety & regulation

Hazard information

Regulatory Information · 2 items

Chemical: Phosphoric acid, disodium salt, heptahydrate

Sodium phosphate, dibasic, heptahydrate: Does not have an individual approval but may be used under an appropriate group standard

Other Safety InformationIMAP assessments - Phosphoric acid, disodium salt, heptahydrate: Human health tier I assessment

Hazards SummaryA skin and strong eye irritant; [Alfa Aesar MSDS] See Disodium phosphate.

Chemistry & industry

Pharmacology

FDA Pharmacological Classification · 2 items

SODIUM PHOSPHATE, DIBASIC, HEPTAHYDRATE

Increased Large Intestinal Motility [PE]; Osmotic Laxative [EPC]; Inhibition Large Intestine Fluid/Electrolyte Absorption [PE]; Osmotic Activity [MoA]

Uses & manufacturing

Uses · 2 items

Used in food production (sequestrant, emulsifier, and buffer), dyeing (mordant), manufacturing (enamels, ceramics, detergents, and boiler compounds) and fireproofing; Also used in weighting silk, tanning, soldering and brazing (instead of borax), and medicine (cathartic); [Merck Index]

Brazing [Category: Heat or Machine]