Skip to Content
Merck
CN

NIST2186I

Potassium phosphate monobasic

NIST® SRM® 2186I

Synonym(s):

Potassium dihydrogen phosphate, prim.-Potassium phosphate

Sign In to View Organizational & Contract Pricing.

Select a Size


About This Item

Linear Formula:
KH2PO4
CAS Number:
Molecular Weight:
136.09
NACRES:
NA.24
PubChem Substance ID:
UNSPSC Code:
12352302
MDL number:
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

Potassium phosphate monobasic, NIST® SRM® 2186I

InChI

1S/K.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1

SMILES string

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

InChI key

GNSKLFRGEWLPPA-UHFFFAOYSA-M

grade

certified reference material

agency

NIST standard reference material

packaging

pkg of 30 g

manufacturer/tradename

NIST®

pKa (25 °C)

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

mp

252.6 °C (lit.)

density

2.338 g/mL at 25 °C (lit.)

application(s)

general analytical

format

neat

Quality Level

Looking for similar products? Visit Product Comparison Guide

Application

SRM 2186I solution is recommended for the calibration of pH meters to use for the measurement of pD in deuterium oxide.

General description

SRM 2186I is certified as a pH standard for pD(S) determination.

SRM 2186I _SDS

SRM 2186I _CoA

Other Notes

Certified for the analytes listed below.
Potassium Dihydrogen Phosphate

See certificate for values and more details at nist.gov/SRM.

Legal Information

NIST is a registered trademark of National Institute of Standards and Technology
SRM is a registered trademark of National Institute of Standards and Technology

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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

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