Potassium phosphate dibasic

SIGALD/60356 - puriss. p.a., ACS reagent, anhydrous, ≥99.0% (T)

Synonym: Dipotassium hydrogenphosphate; Dipotassium phosphate; sec.-Potassium phosphate

CAS Number: 7758-11-4
Empirical Formula (Hill Notation): HK₂O₄P
Molecular Weight: 174.18
EC Number: 231-834-5
MDL Number: MFCD00011383
Linear Formula: K₂HPO₄
Product Type: Chemical

Catalog Number	PKG Qty.	Price


45-60356-1KG	1 kg	$303.00 1/EA	Add To Favorites

Properties
Descriptions
Safety Info.
Basic Data

anion traces	chloride (Cl^-): ≤30 mg/kg
	sulfate (SO₄^2-): ≤50 mg/kg
assay	≥99.0% (T)
cation traces	Ca: ≤50 mg/kg
	Cd: ≤5 mg/kg
	Co: ≤5 mg/kg
	Cr: ≤5 mg/kg
	Cu: ≤5 mg/kg
	Fe: ≤10 mg/kg
	heavy metals: ≤5 ppm (by ICP-OES)
	Mg: ≤5 mg/kg
	Mn: ≤5 mg/kg
	Na: ≤500 mg/kg
	Ni: ≤5 mg/kg
	Pb: ≤5 mg/kg
	Zn: ≤5 mg/kg
form	powder or crystals
grade	ACS reagent
	puriss. p.a.
impurities	≤0.001% total nitrogen (N)
InChI	1S/2K.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2
InChI key	ZPWVASYFFYYZEW-UHFFFAOYSA-L
loss	≤1.0% loss on drying, 105 °C
pH	8.5-9.6 (25 °C, 50 mg/mL in H₂O)
Quality Level	300
SMILES string	[K+].[K+].OP([O-])([O-])=O
solubility	water: soluble (completely)

Application:

beta-lactoglobulin stabilized nanemulsions--Formulation and process factors affecting droplet size and nanoemulsion stability.: This study investigates the impact of formulation and process parameters on the stability and size of beta-lactoglobulin stabilized nanemulsions, potentially involving potassium phosphate dibasic in the formulation process (Ali et al., 2016 ).

Correlation of characteristics of gel extrusion module (GEM) tablet formulation and drug dissolution rate.: Examines how the characteristics of gel extrusion in tablet formulations influence drug dissolution rates, relevant for chemists looking into dissolution behavior and possibly involving potassium phosphate dibasic (Juang and Storey, 2003 ).

High-performance liquid chromatographic determination of phenylureas by photochemically-induced fluorescence detection.: Discusses a method for detecting phenylureas using high-performance liquid chromatography, which could involve potassium phosphate dibasic as a component of the mobile phase or sample preparation (Munoz de la Pena et al., 2002 ).

Assay and purity analysis of diatrizoate sodium in drug product by LC.: This research details a method for assaying and analyzing the purity of diatrizoate sodium, where potassium phosphate dibasic could be part of the chromatographic system (Chellquist et al., 1997 ).

General description:

Potassium phosphate dibasic is a useful biological buffer having a pH in the range of 8.5-9.6. Potassium phosphate is present in various forms: monobasic (KH₂PO₄), dibasic (KH₂PO₄), and tribasic (K₃PO₄). Potassium phosphate buffers are widely employed in equilibrium dialysis, high performance liquid chromatography (HPLC) and affinity capillary electrophoresis studies.

RIDADR	NONH for all modes of transport
WGK Germany	WGK 1
Flash Point(F)	Not applicable
Flash Point(C)	Not applicable

Purity	≥99.0% (T)
UNSPSC	12352302

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