Disodium hydrogenorthophosphate

• CAS: 7558-79-4
• Catalog Number: ACM7558794
• Category: Metal & Ceramic Materials
• Molecular Weight: 141.959g/mol
• Molecular Formula: Anhydrous:Na2HPO4; Hydrate: Na2HPO4? nH₂O (n = 2, 7 or 12);HO4PNa2;Na2HPO4;HNa2O4P
• Description: Sodium phosphate, dibasic appears as a colorless to white crystalline solid. Soluble in water. The primary hazard is the threat to the environment. Immediate steps should be taken to limit spread to the environment. Used as a fertilizer, in pharmaceuticals, in food processing, and for many other uses.;DryPowder; Liquid; PelletsLargeCrystals;Anhydrous disodium hydrogen phosphate is a white, hygroscopic, odourless powder. Hydrated forms available include the dihydrate: a white crystalline, odourless solid; the heptahydrate: white, odourless, efflorescent crystals or granular powder; and the dodecahydrate: white, efflorescent, odourless powder or crystals;WHITE OR COLOURLESS HYGROSCOPIC CRYSTALS OR POWDER.
• Synonyms: DIBASIC SODIUM PHOSPHATE;DINATRII PHOSPHAS DIHYDRICUS;DINATRII PHOSPHAS ANHYDRICUS;DISODIUM PHOSHATE;DISODIUM PHOSPHATE DIHYDRATE;DISODIUM PHOSPHATE;DI-SODIUM HYDROGEN ORTHOPHOSPHATE;DI-SODIUM HYDROGEN ORTHOPHOSPHATE 2H₂O
• IUPAC Name: disodium;hydrogen phosphate
• Canonical SMILES: OP(=O)([O-])[O-].[Na+].[Na+]
• InChI: InChI=1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2
• InChI Key: BNIILDVGGAEEIG-UHFFFAOYSA-L
• Melting Point: 250 oC decomp.
• Density: 1.8 to 2.5 at 77 °F (USCG, 1999);approx 1.7 g/cu cm;0.5-1.2 g/cm³
• Solubility: greater than or equal to 100 mg/mL at 68° F (NTP, 1992);Freely soluble in water. Insoluble in ethanol;11.8 g/100 g water at 25 °C;Soluble in 8 parts water, much more soluble in hot water. Solubility per 100 gal water increases from 14 lbs at slightly >0 °C to over 900 lbs at 95 °C. Insoluble in alcohol. /Anhydrous/;Solubility in water, g/100ml at 20 °C: 7.7
• Color/Form: Colorless, translucent crystals or white powder.;White, hygroscopic powder
• Complexity: 46.5
• Covalently-Bonded Unit Count: 3
• Decomposition: When heated to decomposition it emits toxic fumes of /phosphorous and sodium oxides/.;~250 °C
• EC Number: 231-448-7;231-448-7
• Exact Mass: 141.940784g/mol
• Formal Charge: 0
• H-Bond Acceptor: 4
• H-Bond Donor: 1
• Heavy Atom Count: 7
• ICSC Number: 1129
• LogP: -5.8 (calculated)
• Monoisotopic Mass: 141.940784g/mol
• Odor: NONE
• Other Experimental: Hygroscopic; converted to sodium pyrophosphate at about 240 °C.;Colorless crystals; 11.8 G sol in 100 cc water at 25 °C /Disodium phosphate heptahydrate/;Density 1.679, loses 5H₂O at 48 °C /Disodium phosphate heptahydrate/;Colorless, rhombic or monoclinic, white powder; 87.4 g sol in 100 cc water at 80 °C; Index of refraction: 1.432, 1.436, 1.437; efflorescent /Disodium phosphate dodecahydrate/;MP 35 °C, density 1.5235, readily loses 12H₂O at 100 °C /Disodium phosphate dodecahydrate/;Rhombic bispheroidal crystals; Index of refraction: 1.463 /Disodium phosphate dihydrate/;MP: loses H₂O at 92.5 °C; Specific gravity: 2.066 at 15 °C /Disodium phosphate dihydrate/;100 g sol in 100 ml water at 50 °C; 117 g sol in 100 ml water at 80 °C. /Disodium phosphate dihydrate/;11.8 g sol in 100 ml water at 25 °C /Disodium phosphate dodecahydrate/;Hygroscopic. On exposure to air will absorb from 2 to 7 mols of water depending on the temperature and humidity.;Crystals or granular powder. Stable in the air. Specific gravity 1.7. Soluble in 4 parts water, more soluble in boiling water; practically insoluble in alcohol. The aqueous solution is alkaline, pH=9.5. /Heptahydrate/;Translucent crystals or granules; readily loses 5 mols of water on exposure to air at ordinary temp. Melting point 34-35 °C (when it contains the full 12 mols of H₂O). Specific gravity 1.5. Soluble in 3 parts water; practically insoluble in alcohol. Aqueous solution is alkaline, pH=9.5. /Dodecahydrate/
• Rotatable Bond Count: 0
• RTECS Number: WC4500000
• Stability: On exposure to air, it absorbs 2-7 moles water depending on humidity and temperature.;Stable in air. /Disodium Phosphate Heptahydrate/;Readily loses 5 mols water on exposure to air at ordinary temp. /Disodium Phosphate Dodecahydrate/
• UNII: 22ADO53M6F
• UN Number: 3082

Custom Q&A

What is the molecular formula of Disodium hydrogenorthophosphate?

The molecular formula is Na2HPO4.

What is the molecular weight of Disodium hydrogenorthophosphate?

The molecular weight is 141.959 g/mol.

Is Disodium hydrogenorthophosphate soluble in water?

Yes, it is soluble in water.

What are some synonyms of Disodium hydrogenorthophosphate?

Some synonyms include Disodium hydrogen phosphate, Sodium phosphate dibasic, and DISODIUM PHOSPHATE.

What are the component compounds of Disodium hydrogenorthophosphate?

The component compounds are Sodium (CID 5360545), Phosphoric Acid (CID 1004), and Hydrogen phosphate (CID 3681305).

What is the IUPAC name of Disodium hydrogenorthophosphate?

The IUPAC name is disodium;hydrogen phosphate.

What is the InChIKey of Disodium hydrogenorthophosphate?

The InChIKey is BNIILDVGGAEEIG-UHFFFAOYSA-L.

What is the CAS number of Disodium hydrogenorthophosphate?

The CAS numbers are 10039-32-4, 7558-79-4, and 10140-65-5.

What is the EC number of Disodium hydrogenorthophosphate?

The EC number is 231-448-7.

What is the FEMA number of Disodium hydrogenorthophosphate?

The FEMA number is 2398.