Sodium phosphate dibasic

SIGALD/S9763 - ACS reagent, ≥99.0%

Synonym: sec-Sodium phosphate; Disodium hydrogen phosphate; Disodium phosphate; Sodium hydrogenphosphate

CAS Number: 7558-79-4
Empirical Formula (Hill Notation): Na₂HPO₄
Molecular Weight: 141.96
EC Number: 231-448-7
MDL Number: MFCD00003496
Linear Formula: Na₂HPO₄
Product Type: Chemical

Catalog Number	PKG Qty.	Price


45-S9763-100G	100 g	$78.20 1/EA	Add To Favorites
45-S9763-500G	500 g	$111.00 1/EA	Add To Favorites
45-S9763-1KG	1 kg	$198.00 1/EA	Add To Favorites
45-S9763-2.5KG	2.5 kg	$392.00 1/EA	Add To Favorites
45-S9763-5KG	5 kg	$611.00 1/EA	Add To Favorites
45-S9763-12KG	12 kg	$794.00 1/EA	Add To Favorites

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This image depicts SKU: S9763-100G

Properties
Descriptions
Safety Info.
Basic Data

agency	suitable for SM 5210
anion traces	sulfate (SO₄^2-): ≤0.005%
assay	≥99.0%
cation traces	Fe: ≤0.002%
	heavy metals: ≤0.001% (by ICP-OES)
form	powder
grade	ACS reagent
impurities	≤0.002% Chloride (Cl)
	≤0.01% Insoluble matter
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
loss	≤0.2% loss on drying, 105°C
pH	8.7-9.3 (25 °C, 5% in solution)
pKa (25 °C)	(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
Quality Level	200
SMILES string	[Na+].[Na+].[H]OP([O-])([O-])=O
solubility	water: 5% at 25 °C, clear

Application:	Sodium phosphate dibasic has been used in: • the preparation of phosphate buffer saline solution for perfusion procedure • western blot • indirect enzyme linked immunosorbent assay
General description:	Sodium phosphate dibasic in combination with sodium phosphate monobasic is used in the preparation of oral sodium phosphate solution (OSPS), which is a purgative used for bowel cleansing before colonoscopy.
Legal Information:	Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
Other Notes:	Go to Redi-Dri^™ Product Listing 795410
Packaging:	1, 2.5 kg in poly bottle
Packaging:	100, 500 g in poly bottle
Packaging:	5, 12 kg in poly drum

WGK Germany	WGK 1
Flash Point(F)	Not applicable
Flash Point(C)	Not applicable

Purity	≥99.0%
UNSPSC	12352302

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