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Merck

RDD007

Sodium phosphate monobasic

anhydrous, free-flowing, Redi-Dri™, ≥99.0%

Synonym(s):

Monosodium dihydrogen orthophosphate, Monosodium phosphate, Sodium dihydrogen phosphate

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About This Item

Linear Formula:
NaH2PO4
CAS Number:
7558-80-7
Molecular Weight:
119.98
NACRES:
NA.25
PubChem Substance ID:
329824218
UNSPSC Code:
12161700
EC Number:
231-449-2
MDL number:
MFCD00003527

Product Name

Sodium phosphate monobasic, anhydrous, free-flowing, Redi-Dri™, ≥99.0%

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

SMILES string

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

grade

anhydrous

product line

Redi-Dri™

assay

≥99.0%

form

powder

quality

free-flowing

pH

4.0-4.5 (25 °C, 50 g/L in water)

pKa (25 °C)

(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)

application(s)

PFAS testing

Quality Level

100

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Application

Sodium phosphate monobasic can be used:
  • As a catalyst in the synthesis of non-ionic surfactants used for adhesive and detergent applications.
  • As a component of phosphate buffer saline (PBS buffer) used in the study of glucose biosensor.

General description

Sodium phosphate is a salt of sodium hydroxide and phosphoric acid. It is commonly used in buffers for molecular biology applications. It can also be used as a catalyst in some organic reactions.

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
0000489684
0000489685
0000489685
0000489684
0000470516

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Synthesis of sorbital based nonionic surfactants and characterization of interfacial and adhesive properties for waterborne pressure-sensitive adhesives
Lim J, et al.
Colloids and Surfaces. A, Physicochemical and Engineering Aspects, 446(19), 80-89 (2014)
Nanoporous cerium oxide thin film for glucose biosensor
Saha S
Biosensors And Bioelectronics, 24(7), 2040-2045 (2009)
Sodium dihydrogen phosphate as an efficient catalyst for one-pot, three-component synthesis of α-aminophosphonates under solvent-free conditions at room temperature
Karimi-Jaberi Z, et al.
Synthetic Communications, 40(19), 2948-2953 (2010)
Synthesis of environment friendly nonionic surfactants from sugar base and characterization of interfacial properties for detergent application
Lee S, et al.
Journal of Industrial and Engineering Chemistry, 38(19), 157-166 (2016)
Rapid synthesis of 2-substituted-2, 3-dihydro-4 (1 H)-quinazolinones using boric acid or sodium dihydrogen phosphate under solvent-free conditions
Karimi-Jaberi Z and Zarei L
South African Journal of Chemistry, 65(1), 36-38 (2012)
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