Sodium pyrophosphate(v)

• CAS: 7722-88-5
• Catalog Number: ACM7722885
• Category: Metal & Ceramic Materials
• Molecular Weight: 265.9g/mol
• Molecular Formula: Anhydrous: Na4P2O7; Decahydrate: Na4P2O7? 10H₂O;Na4O7P2;Na4O7P2
• Description: Tetrasodium pyrophosphate appears as odorless, white powder or granules. mp: 995°C. Density: 2.53 g/cm³. Solubility in water: 3.16 g/100 mL (cold water); 40.26 g/100 mL boiling water. Used as a wool de-fatting agent, in bleaching operations, as a food additive. The related substance tetrasodium pyrophosphate decahydrate (Na4P2O7*10H₂O) occurs as colorless transparent crystals. Loses its water when heated to 93.8°C.;DryPowder; DryPowder, PelletsLargeCrystals; PelletsLargeCrystals;Colourless or white crystals, or a white crystalline or granular powder. The decahydrate effloresces slightly in dry air;ODOURLESS COLOURLESS OR WHITE CRYSTALS OR POWDER.;Odorless, white powder or granules. [Note: The decahydrate (Na4P2O7 ? 10H₂O) is in the form of colorless, transparent crystals.]
• IUPAC Name: tetrasodium;phosphonato phosphate
• Canonical SMILES: [O-]P(=O)([O-])OP(=O)([O-])[O-].[Na+].[Na+].[Na+].[Na+]
• InChI: InChI=1S/4Na.H4O7P2/c;;;;1-8(2,3)7-9(4,5)6/h;;;;(H2,1,2,3)(H2,4,5,6)/q4*+1;/p-4
• InChI Key: FQENQNTWSFEDLI-UHFFFAOYSA-J
• Boiling Point: Decomposes (NIOSH, 2016);Decomposes
• Melting Point: 1810 °F (NIOSH, 2016);Mp 993 ° (985 °);988 °C;988 °C;1810°F
• Density: 2.45 (NIOSH, 2016);2.534;Relative density (water = 1): 2.5;2.45
• Solubility: 7 % at 77° F (NIOSH, 2016);Soluble in water. Insoluble in ethanol;81.4 mg/mL at 25 °C;IN WATER: 2.61 G/100 ML @ 0 °C; 6.7 G/100 ML @ 25 °C; 42.2 G/100 ML @ 100 °C;(77°F): 7%
• Color/Form: CRYSTALS;COLORLESS, TRANSPARENT CRYSTALS OR WHITE POWDER;White powder or granules.
• Complexity: 124
• Covalently-Bonded Unit Count: 5
• Decomposition: When heated to decomp ... emits toxic fumes of /phosphorus oxides/.
• EC Number: 231-767-1;231-767-1
• Exact Mass: 265.871003g/mol
• Formal Charge: 0
• H-Bond Acceptor: 7
• H-Bond Donor: 0
• Heavy Atom Count: 13
• ICSC Number: 1140
• Monoisotopic Mass: 265.871003g/mol
• Odor: Odorless.
• Other Experimental: AVAIL ALKALINITY AS NA2O 4.4%, TOTAL ALKALINITY 22.7%;MP: 79.5 °C; DENSITY: 1.82; PH OF 1% SOLN: 10.2 @ 25 °C /DECAHYDRATE/;COLORLESS, MONOCLINIC CRYSTALS; INSOL IN AMMONIA /DECAHYDRATE/;INSOL IN ALCOHOL /DECAHYDRATE/;SOLUBILITY IN WATER: 3.16 G/100 ML @ 0 °C; 6.23 G/100 ML @ 20 °C; 8.14 G/100 ML @ 25 °C; 21.83 G/100 ML @ 60 °C; 30.04 G/100 ML @ 80 °C /DECAHYDRATE/;INDEX OF REFRACTION: 1.450, 1.453, 1.460 /DECAHYDRATE/;SLIGHT EFFLORESCENCE IN DRY AIR /DECAHYDRATE/;HYDROLYZES TO ORTHOPHOSPHATE IN AQ SOLN, BUT RATE OF HYDROLYSIS IS MUCH SLOWER THAN FOR MORE ACID PYROPHOSPHATE; NO NOTICEABLE HYDROLYSIS WITHIN 60 HR AT 70 °C
• Refractive Index: INDEX OF REFRACTION: 1.425
• Rotatable Bond Count: 0
• RTECS Number: UX7350000
• UNII: O352864B8Z
• Vapor Pressure: 0 mm Hg (approx) (NIOSH, 2016);0 mmHg (approx)

Custom Q&A

What is the molecular formula of Sodium pyrophosphate?

The molecular formula of Sodium pyrophosphate is Na4P2O7.

What is the molecular weight of Sodium pyrophosphate?

The molecular weight of Sodium pyrophosphate is 265.90 g/mol.

What is the density of Sodium pyrophosphate?

The density of Sodium pyrophosphate is 2.53 g/cm3.

What is the solubility of Sodium pyrophosphate in cold water?

The solubility of Sodium pyrophosphate in cold water is 3.16 g/100 mL.

What is the solubility of Sodium pyrophosphate in boiling water?

The solubility of Sodium pyrophosphate in boiling water is 40.26 g/100 mL.

What is Sodium pyrophosphate used for?

Sodium pyrophosphate is used as a wool de-fatting agent, in bleaching operations, and as a food additive.

What are some synonyms for Sodium pyrophosphate?

Some synonyms for Sodium pyrophosphate are TETRASODIUM PYROPHOSPHATE, 7722-88-5, TSPP, Phosphotex.

What is the IUPAC name of Sodium pyrophosphate?

The IUPAC name of Sodium pyrophosphate is tetrasodium;phosphonato phosphate.

What is the InChIKey of Sodium pyrophosphate?

The InChIKey of Sodium pyrophosphate is FQENQNTWSFEDLI-UHFFFAOYSA-J.

What is the CAS number of Sodium pyrophosphate?

The CAS number of Sodium pyrophosphate is 7722-88-5.