Sodium phosphate dibasic

SIGALD/795410 - anhydrous, free-flowing, Redi-Dri^™, ACS reagent, ≥99%

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

CAS Number: 7558-79-4
Empirical Formula (Hill Notation): HNa₂O₄P
Molecular Weight: 141.96
EC Number: 231-448-7
MDL Number: MFCD00003496
Linear Formula: Na₂HPO₄
Product Type: Chemical

Catalog Number	PKG Qty.	Price


45-795410-100G	100 g	$76.40 1/EA	Add To Favorites
45-795410-500G	500 g	$109.00 1/EA	Add To Favorites
45-795410-1KG	1 kg	$80.97 1/EA	Add To Favorites
45-795410-2.5KG	2.5 kg	$368.00 1/EA	Add To Favorites
45-795410-5KG	5 kg	$570.00 1/EA	Add To Favorites

This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.

This image depicts SKU: 795410-100G

Properties
Descriptions
Safety Info.
Basic Data

anion traces	sulfate (SO₄^2-): ≤0.005%
assay	≥99%
cation traces	Fe: ≤0.002%
	heavy metals: ≤0.001% (by ICP-OES)
form	powder
grade	ACS reagent
	anhydrous
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)
product line	Redi-Dri^™
quality	free-flowing
Quality Level	100
SMILES string	[Na+].[Na+].[H]OP([O-])([O-])=O

Application:	Sodium phosphate dibasic can be used as a buffer in the reverse phase HPLC method.
Features and Benefits:	• Increased efficiency – Eliminate time and effort of loosening hardened powders • Safety – Avoid risks of using tools of force to break up clumps • Economy – Faster preparation and solvation increase productivity and reduce costs • Assured quality – Excellent, expert-tested quality with no anti-caking agents • Flexible volumes – Available from research amounts to scale-up quantities
Features and Benefits:	• Increased efficiency – Eliminate time and effort of loosening hardened powders • Safety – Avoid risks of using tools of force to break up clumps • Economy – Faster preparation and solvation increase productivity and reduce costs • Assured quality – Excellent, expert-tested quality with no anti-caking agents • Flexible volumes – Available from research amounts to scale-up quantities.
General description:	Redi-Dri^™ technology eliminates clumping and the need for complicated procedures to keep your salts free-flowing. Keeping your salts dry helps improve your results by giving accurate measurements and easier-to-handle salts and buffers. Rather than drying your salts in an oven or desiccator or breaking them apart manually, Redi-Dri^™ ensures that your salts will remain easy-to-use for months without worrying about anti-caking agents. Even after repeated openings you can be assured that your results are always accurate. Redi-Dri^™ saves you time, energy and money by keeping your salts usable for longer!
General description:	Sodium phosphate dibasic is an inorganic salt with the chemical formula Na₂HPO₄. Sodium phosphate dibasic is highly soluble in water but insoluble in ethanol. It is used as a sequestering agent, buffering agent, pH regulator and saline laxative.
Legal Information:	Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
Packaging:	1, 2.5 kg in poly bottle
Packaging:	100, 500 g in poly bottle
Packaging:	5 kg in poly drum

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

Purity	≥99%
UNSPSC	12352200

To Order From a Quote