CAS 7558-80-7 Sodium dihydrogenorthophosphate

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Sodium dihydrogenorthophosphate

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Catalog Number

ACM7558807

Product Name

Sodium dihydrogenorthophosphate

Structure

CAS

7558-80-7

Category

Electrolytes

Synonyms

SODIUM DIHYDROGEN PHOSPHATE-16O4;acidsodiumphosphate;monosodiumdihydrogenorthophosphate;monosodiumhydrogenphosphate;monosodiumphosphate(sodiumdihydrogen;monosodiumphosphate(sodiumdihydrogenphosphate);monosorbxp-4;phosphatemonobasiquedesodium

Description

DryPowder; DryPowder, PelletsLargeCrystals; Liquid; PelletsLargeCrystals;A white odourless, slightly deliquescent powder, crystals or granules

IUPAC Name

sodium;dihydrogen phosphate

Molecular Weight

119.977g/mol

Molecular Formula

Anhydrous: NaH2PO4; Monohydrate: NaH2PO4? H₂O; Dihydrate: NaH2PO4? 2H₂O;NaH2PO4;H2NaO4P

Canonical SMILES

OP(=O)(O)[O-].[Na+]

InChI

InChI=1S/Na.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1

InChI Key

AJPJDKMHJJGVTQ-UHFFFAOYSA-M

Melting Point

Decomposes at 75;60 °C;200 °C (decomposes)

Density

2360 kg/cu m

Solubility

Freely soluble in water. Insoluble in ethanol or ether;487 mg/mL at 25 °C;In water, 85 g/100 mL

Color/Form

Colorless, monoclinic crystals;White crystalline powder

Complexity

61.9

Covalently-Bonded Unit Count

EC Number

231-449-2;231-449-2;231-558-5;618-243-1

Exact Mass

119.95884g/mol

Formal Charge

Heavy Atom Count

MeSH Entry Terms

dibasic sodium phosphate, anhydrous;disodium acid phosphate;disodium hydrogen phosphate;disodium hydrogen phosphate anhydrous;monosodium dihydrogen phosphate;neutral sodium hydrogen phosphate;phosphoric acid, disodium salt;phosphoric acid, disodium salt, 32P-labeled;phosphoric acid, disodium salt, anhydrous;phosphoric acid, disodium salt, dodecahydrate;phosphoric acid, disodium salt, heptahydrate;phosphoric acid, monosodium salt;phosphoric acid, monosodium salt, anhydrous;phosphoric acid, sodium (2:3) salt;phosphoric acid, sodium salt;phosphoric acid, trisodium salt;phosphoric acid, trisodium salt , 32P-labeled;phosphoric acid, trisodium salt , dodecahydrate;sodium biphosphate;sodium dihydrogen orthophosphate;sodium dihydrogen phosphate;sodium hydrophosphate;sodium phosphate;sodium phosphate monobasic anhydrous;sodium phosphate, dibasic;sodium phosphate, dibasic (anhydrous);sodium phosphate, disodium salt;sodium phosphate, monobasic;sodium phosphate, monobasic anhydrous;sodium phosphate, tribasic;sodium phosphate, tribasic, dodecahydrate;trisodium phosphate;trisodium phosphate dodecahydrate

Monoisotopic Mass

119.95884g/mol

Odor

Odorless

Other Experimental

White, hygroscopic crystals. Decomp at 100 °C. Solubility: 94.9 g/100 g water at 25 °C. Insoluble in ethanol. /Sodium dihydrogen phosphate monohydrate/;SOLN PRODUCES EFFERVESCENCE WITH SODIUM CARBONATE; NEUTRAL, OR PRACTICALLY NEUTRAL, TO METHYL ORANGE TEST SOLN /SODIUM DIHYDROGEN PHOSPHATE MONOHYDRATE/;Slightly hygroscopic ... Has acid reaction; forms sodium acid pyrophosphate at 225-250 °C and sodium metaphosphate at 350-400 °C;Large, transparent crystals. ... density 2.040. Very soluble in water; insoluble in alcohol; pH of 1% solution 4.4-4.5 /Sodium dihydrogen phosphate monohydrate/;Colorless, orthorhombic crystals; MP: 60 °C (decomposes); density: 1.91 g/cu cm; 94.9 g/100 g water at 25 °C. Insoluble in ethanol /Sodium dihydrogen phosphate dihydrate/;Orthorhombic bisphenoidal colorless crystals, mp 60 °C, specific gravity 1.915. At room temp crystallizes with 2H₂O. /Sodium dihydrogen phosphate dihydrate/;White, odorless, slightly deliquescent crystals or granules. At 100 °C loses all its water; when ignited it converts into metaphosphate. Freely soluble in water; practically insoluble in alcohol. The aqueous soln is acid. pH of 0.1 molar aq soln at 25 °C: 4.5. /Sodium dihydrogen phosphate monohydrate/;Reacts slowly on exposure to water (moisture) with (some) metals. On burning: release of toxic and corrosive gases/vapours (phosphorus oxides). Reacts violently with (some) acids/bases.

Rotatable Bond Count

UNII

KH7I04HPUU

MSDS

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COA

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Spec Sheet

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