Merck
All Photos(1)

Documents

1.04928

Supelco

Potassium carbonate

for analysis EMSURE® ACS,ISO,Reag. Ph Eur

Sign Into View Organizational & Contract Pricing

Synonym(s):
Potassium carbonate, potash
Empirical Formula (Hill Notation):
CK2O3
CAS Number:
Molecular Weight:
138.21
MDL number:
EC Index Number:
209-529-3

grade

ACS reagent

Quality Level

Agency

reag. ISO
reag. Ph. Eur.

product line

EMSURE®

Assay

≥99.0% (acidimetric)
≥99.0% dry basis (acidimetric)

form

solid

potency

>2000 mg/kg LD50, oral (Rat)

impurities

≤0.005% Insoluble matter
≤0.01% Substances precipitated by ammonia

loss

≤1% loss on drying, 300 °C

pH

11.5-12.5 (20 °C, 50 g/L in H2O)

mp

891 °C

density

2.43 g/cm3 at 20 °C

bulk density

750 kg/m3

anion traces

chloride (Cl-): ≤0.003%
phosphate (PO43-): ≤0.001%
silicate (as SiO2): ≤0.005%
sulfur compounds (as SO42-): ≤0.003%

cation traces

Ca: ≤0.002%
Cu: ≤0.0005%
Fe: ≤0.0005%
Mg: ≤0.001%
N: ≤0.001%
Na: ≤0.02%
Pb: ≤0.0005%
heavy metals: ≤0.0005%

storage temp.

2-30°C

InChI

1S/CH2O3.2K/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2

InChI key

BWHMMNNQKKPAPP-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
5906813678771.04854
Potassium carbonate for analysis EMSURE® ACS,ISO,Reag. Ph Eur

Supelco

1.04928

Potassium carbonate

Potassium carbonate anhydrous, powder, 99.99% trace metals basis

Sigma-Aldrich

590681

Potassium carbonate

Potassium carbonate 99.995% trace metals basis

Sigma-Aldrich

367877

Potassium carbonate

assay

≥99.0% (acidimetric), ≥99.0% dry basis (acidimetric)

assay

99.99% trace metals basis

assay

99.995% trace metals basis

assay

≥99.5% (acidimetric), 99.7-100.5% dry basis (acidimetric)

form

solid

form

powder

form

powder and chunks

form

powder or crystals

impurities

≤0.005% Insoluble matter, ≤0.01% Substances precipitated by ammonia

impurities

≤150.0 ppm Trace Metal Analysis

impurities

≤55.0 ppm Trace Metal Analysis

impurities

≤0.01% Insoluble matter

pH

11.5-12.5 (20 °C, 50 g/L in H2O)

pH

-

pH

-

pH

8.4-8.6 (20 °C, 99 g/L in H2O)

mp

891 °C

mp

891 °C (lit.)

mp

891 °C (lit.)

mp

-

Linkage

Replaces: PX1390; PX1390-1; PX1390-20

Analysis Note

Assay (acidimetric; calculated on dried substance): ≥ 99.0 %
Assay (acidimetric): ≥ 99.0 %
Insoluble matter: ≤ 0.005 %
Chloride (Cl): ≤ 0.003 %
Phosphate (PO₄): ≤ 0.001 %
Silicate (SiO₂): ≤ 0.005 %
Total sulfur (as sulfate): ≤ 0.003 %
Total nitrogen (N): ≤ 0.001 %
Heavy metals (ACS): ≤ 0.0005 %
Ca (Calcium): ≤ 0.002 %
Cu (Copper): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %
Mg (Magnesium): ≤ 0.001 %
Na (Sodium): ≤ 0.02 %
Pb (Lead): ≤ 0.0005 %
Substances precipitated by ammonia: ≤ 0.01 %
Loss on drying (300 °C): ≤ 1.0 %
Corresponds to ACS, ISO, Reag. Ph Eur

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

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

Slide 1 of 7

1 of 7

Potassium carbonate puriss. p.a., ACS reagent, anhydrous, ≥99.0% (T)

Sigma-Aldrich

60109

Potassium carbonate

Potassium carbonate ReagentPlus®, 99%

Sigma-Aldrich

310263

Potassium carbonate

Potassium sulfate for analysis EMSURE® ACS,ISO,Reag. Ph Eur

Supelco

1.05153

Potassium sulfate

Potassium carbonate anhydrous, free-flowing, −325 mesh, Redi-Dri™, reagent grade, ≥98%

Sigma-Aldrich

900502

Potassium carbonate

Sodium carbonate anhydrous for analysis EMSURE® ISO

Supelco

1.06392

Sodium carbonate

2,2-Dimethoxypropane for synthesis

Sigma-Aldrich

8.02936

2,2-Dimethoxypropane

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