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Potassium carbonate

Name: Potassium carbonate
Brand: SIGMA
Price: 3870 CZK

BioUltra, anhydrous, ≥99.0% (T)

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1 kg	Please contact Customer Service for Availability	3 870,00 CZK

About This Item

Linear Formula:

K₂CO₃

CAS Number:

584-08-7

Molecular Weight:

138.21

UNSPSC Code:

12161700

NACRES:

NA.21

PubChem Substance ID:

57651721

EC Number:

209-529-3

Beilstein/REAXYS Number:

4267587

MDL number:

MFCD00011382

Assay:

≥99.0% (T)

Form:

powder or crystals

Grade:

biotech. grade

3 870,00 CZK

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Properties

grade

biotech. grade

product line

BioUltra

assay

≥99.0% (T)

form

powder or crystals

impurities

insoluble matter, passes filter test, ≤0.001% total nitrogen (N)

pH

11.0-13.0 (25 °C, 1 M in H₂O)

mp

891 °C (lit.)

solubility

H₂O: 1 M at 20 °C, clear, colorless

anion traces

chloride (Cl^-): ≤30 mg/kg, phosphate (PO₄^3-): ≤20 mg/kg, silicate (as SiO₂): ≤30 mg/kg, sulfate (SO₄^2-): ≤30 mg/kg

cation traces

Mn: ≤5 mg/kg, Al: ≤5 mg/kg, As: ≤0.1 mg/kg, Ba: ≤5 mg/kg, Bi: ≤5 mg/kg, Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mo: ≤5 mg/kg, Na: ≤200 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg

λ

1 M in H₂O

UV absorption

λ: 260 nm A_max: 0.03, λ: 280 nm A_max: 0.02

SMILES string

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

InChI

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

InChI key

BWHMMNNQKKPAPP-UHFFFAOYSA-L

Description

Application

Potassium carbonate is used to develop and study methods of nucleic acid, DNA, amino acid and peptide intercalation into structures such as into Mg-Al layered double hydroxide (hydrotalcite) capsules.

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This Item	1548167	590681	791776
Sigma-Aldrich 60108 Potassium carbonate	USP 1548167 Potassium carbonate	Sigma-Aldrich 590681 Potassium carbonate	Sigma-Aldrich 791776 Potassium carbonate
description BioUltra, anhydrous, ≥99.0% (T)	description United States Pharmacopeia (USP) Reference Standard	description powder, 99.99% trace metals basis	description anhydrous, free-flowing, Redi-Dri^™, ACS reagent, ≥99%
grade biotech. grade	grade pharmaceutical primary standard	grade anhydrous	grade ACS reagent, anhydrous
assay ≥99.0% (T)	assay -	assay 99.99% trace metals basis	assay ≥99%
form powder or crystals	form -	form powder	form powder
pH 11.0-13.0 (25 °C, 1 M in H₂O)	pH -	pH -	pH 11-13 (25 °C, 138 g/L)
solubility H₂O: 1 M at 20 °C, clear, colorless	solubility -	solubility ethanol: insoluble(lit.)	solubility -
impurities insoluble matter, passes filter test, ≤0.001% total nitrogen (N)	impurities -	impurities ≤150.0 ppm Trace Metal Analysis	impurities ≤0.01% insolubles, ≤0.005% silica

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Pictograms

GHS07

Signal Word

Warning

Hazard Codes

H315,H319,H335

Precautionary Statements

P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class

13 - Non Combustible Solids

WGK

WGK 1

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

PPE (personal protective equipment)

dust mask type N95 (US), Eyeshields, Gloves

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