MilliporeSigma
All Photos(6)

P3786

Sigma-Aldrich

Potassium phosphate dibasic

ACS reagent, ≥98%

Sign Into View Organizational & Contract Pricing

Select a Size

Synonym(s):
Dipotassium hydrogenphosphate, Dipotassium phosphate, sec.-Potassium phosphate
Linear Formula:
K2HPO4
CAS Number:
Molecular Weight:
174.18
EC Number:
MDL number:
eCl@ss:
38070212
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent

Quality Level

Agency

suitable for SM 5210

Assay

≥98%

form

powder

impurities

≤0.001% Nitrogen compounds (as N)
≤0.01% Insoluble matter

loss

≤1.0% loss on drying, 105°C

pH

8.5-9.6 (25 °C, 5% in solution)

anion traces

chloride (Cl-): ≤0.003%
sulfate (SO42-): ≤0.005%

cation traces

Fe: ≤0.001%
Na: ≤0.05%
heavy metals: ≤5 ppm (by ICP-OES)

SMILES string

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

InChI

1S/2K.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2

InChI key

ZPWVASYFFYYZEW-UHFFFAOYSA-L

Looking for similar products? Visit Product Comparison Guide

Related Categories

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
P8281795496P2222
Potassium phosphate dibasic reagent grade, ≥98.0%

Sigma-Aldrich

P8281

Potassium phosphate dibasic

Essential Grade
assay

≥98%

assay

≥98.0%

assay

≥98%

assay

98.0-100.5%

form

powder

form

powder

form

powder

form

granular

impurities

≤0.001% Nitrogen compounds (as N), ≤0.01% Insoluble matter

impurities

-

impurities

≤0.001% Nitrogen compounds (as N), ≤0.01% Insoluble matter

impurities

-

pH

8.5-9.6 (25 °C, 5% in solution)

pH

8.7-9.3 (25 °C, 50 g/L)

pH

8.5-9.6 (25 °C, 5% in solution)

pH

-

anion traces

chloride (Cl-): ≤0.003%, sulfate (SO42-): ≤0.005%

anion traces

-

anion traces

chloride (Cl-): ≤0.003%, sulfate (SO42-): ≤0.005%

anion traces

-

Application

Potassium phosphate dibasic has been used in the preparation of MMG (maltose, methyl green) medium, phosphate buffered saline and hypotonic solution.

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


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?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

Expression and Analysis of Flow-regulated Ion Channels in Xenopus Oocytes.
Shi S
Bio-protocol null
A new semi-selective medium for Xanthomonas campestris pv. vitians, the causal agent of bacterial leaf spot of lettuce.
Toussaint VCE et al.
Plant Disease, 85, 131-136 (2001)
Expression and Purification of the Arabidopsis E4 SUMO Ligases PIAL1 and PIAL2.
Tomanov K and Bachmair A
Bio-protocol null
Sopio Melikishvili et al.
Food chemistry, 337, 127759-127759 (2020-08-11)
High-resolution ultrasonic spectroscopy (HR-US) was applied for real-time monitoring of β-casein hydrolysis by trypsin at various conditions for the first time. The technique is based on the precision measurement of hydration changes proportional to the number of peptide bond hydrolyzed.
Joonhoon Kim et al.
Frontiers in bioengineering and biotechnology, 8, 612832-612832 (2021-02-16)
An oleaginous yeast Rhodosporidium toruloides is a promising host for converting lignocellulosic biomass to bioproducts and biofuels. In this work, we performed multi-omics analysis of lignocellulosic carbon utilization in R. toruloides and reconstructed the genome-scale metabolic network of R. toruloides.

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