Skip to Content
Merck
CN
All Photos(2)

Documents

NIST2186I

Potassium phosphate monobasic

NIST® SRM® 2186I

Sign Into View Organizational & Contract Pricing
All Photos(2)
Synonym(s):
Monopotassium phosphate, Potassium dihydrogen phosphate, prim.-Potassium phosphate
Linear Formula:
KH2PO4
CAS Number:
7778-77-0
Molecular Weight:
136.09
MDL number:
MFCD00011401
UNSPSC Code:
12352302
PubChem Substance ID:
329818734
NACRES:
NA.24

grade

certified reference material

Quality Level

100

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

SMILES string

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

InChI

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

InChI key

GNSKLFRGEWLPPA-UHFFFAOYSA-M

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

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

SRM 2186I _SDS

SRM 2186I _CoA

Application

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

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

related product

Product No.
Description
Pricing

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