Skip to Content
Merck
All Photos(6)

Documents

Safety Information

RDD007

Sigma-Aldrich

Sodium phosphate monobasic

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

Synonym(s):

Monosodium dihydrogen orthophosphate, Monosodium phosphate, Sodium dihydrogen phosphate

Sign Into View Organizational & Contract Pricing
All Photos(6)

About This Item

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

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)

SMILES string

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

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

Looking for similar products? Visit Product Comparison Guide

Related Categories

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.

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.

Legal Information

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

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

RDD007-VAR:
RDD007-1KG:
RDD007-BULK:
RDD007-2.5KG:

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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)
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)
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)
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)
View All Related Papers

Articles

Redi-Dri™ – The World of Free-flowing Hygroscopic Products

Redi-Dri™ prevents hygroscopic powders, such as inorganic salts, from absorbing moisture and forming clumps, leaving the salts free-flowing every time.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service