Kaliumcarbonat

Potassium carbonate Struktur
584-08-7
CAS-Nr.
584-08-7
Bezeichnung:
Kaliumcarbonat
Englisch Name:
Potassium carbonate
Synonyma:
K2CO3;Anhydrous potassium carbonate;POTASH;potassium carbonate anhydrous;POTASSIUM CARBONATE USP;Pearl dust;Kaliumcarbonat;BUFFERED PEPTONE;dipotassiumcarbonate;PotassiumCarbonateFcc
CBNumber:
CB4853879
Summenformel:
K2CO3
Molgewicht:
138.21
MOL-Datei:
584-08-7.mol

Kaliumcarbonat Eigenschaften

Schmelzpunkt:
891 °C (lit.)
Siedepunkt:
decomposes [STR93]
Dichte
2.43 g/mL at 25 °C
storage temp. 
Store at +5°C to +30°C.
Löslichkeit
H2O: 1 M at 20 °C, clear, colorless
pka
10.33[at 20 ℃]
Aggregatzustand
powder
Wichte
2.29
Farbe
Yellow
PH
10.52(1 mM solution);11(10 mM solution);11.36(100 mM solution);
Geruch (Odor)
at 100.00?%. odorless
Wasserlöslichkeit
1120 g/L (20 ºC)
Sensitive 
Hygroscopic
maximale Wellenlänge (λmax)
λ: 260 nm Amax: 0.03
λ: 280 nm Amax: 0.02
Merck 
14,7619
BRN 
4267587
Dielectric constant
5.6(16.0℃)
Stabilität:
Stable. Incompatible with moisture, acids, magnesium bromine trifluoride and magnesium bromine trichloride.
CAS Datenbank
584-08-7(CAS DataBase Reference)
NIST chemische Informationen
Dipotassium carbonate(584-08-7)
EPA chemische Informationen
Potassium carbonate (584-08-7)
Sicherheit
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher Xn
R-Sätze: 22-36/37/38-20/21/22
S-Sätze: 26-36-37/39
RIDADR  3262
WGK Germany  1
RTECS-Nr. TS7750000
3
TSCA  Yes
PackingGroup  III
HS Code  28364000
Giftige Stoffe Daten 584-08-7(Hazardous Substances Data)
Toxizität LD50 orally in rats: 1.87 g/kg, H. F. Smyth et al., Am. Ind. Hyg. Assoc. J. 30, 470 (1969)
Bildanzeige (GHS) GHS hazard pictograms
Alarmwort Warnung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H315 Verursacht Hautreizungen. Hautreizung Kategorie 2 Warnung P264, P280, P302+P352, P321,P332+P313, P362
H319 Verursacht schwere Augenreizung. Schwere Augenreizung Kategorie 2 Warnung P264, P280, P305+P351+P338,P337+P313P
H335 Kann die Atemwege reizen. Spezifische Zielorgan-Toxizität (einmalige Exposition) Kategorie 3 (Atemwegsreizung) Warnung
Sicherheit
P261 Einatmen von Staub vermeiden.
P264 Nach Gebrauch gründlich waschen.
P264 Nach Gebrauch gründlich waschen.
P271 Nur im Freien oder in gut belüfteten Räumen verwenden.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P302+P352 BEI BERÜHRUNG MIT DER HAUT: Mit viel Wasser/... (Hersteller kann, falls zweckmäßig, ein Reinigungsmittel angeben oder, wenn Wasser eindeutig ungeeignet ist, ein alternatives Mittel empfehlen) waschen.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen.

Kaliumcarbonat Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD

FARBLOSE HYGROSKOPISCHE KRISTALLE ODER HYGROSKOPISCHES WEISSES PULVER.

CHEMISCHE GEFAHREN

Mittelstarke Base in wässriger Lösung. Reagiert sehr heftig mit Säuren und Chlortrifluorid. Reagiert mit pulverförmigen Metallen.

ARBEITSPLATZGRENZWERTE

TLV nicht festgelegt (ACGIH 2005).
MAK nicht festgelegt (DFG 2005).

AUFNAHMEWEGE

Aufnahme in den Körper durch Verschlucken.

INHALATIONSGEFAHREN

Eine gesundheitsschädliche Partikelkonzentration in der Luft kann beim Dispergieren schnell erreicht werden.

WIRKUNGEN BEI KURZZEITEXPOSITION

WIRKUNGEN BEI KURZZEITEXPOSITION:
Die Substanz reizt die Augen, die Haut und die Atemwege.

LECKAGE

Persönliche Schutzausrüstung: Atemschutzgerät, P2-Filter für schädliche Partikel. Verschüttetes Material in Behältern sammeln. Reste mit viel Wasser wegspülen.

R-Sätze Betriebsanweisung:

R22:Gesundheitsschädlich beim Verschlucken.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R20/21/22:Gesundheitsschädlich beim Einatmen,Verschlucken und Berührung mit der Haut.

S-Sätze Betriebsanweisung:

S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.

Chemische Eigenschaften

Potassium carbonate is a white, crystalline, salt that forms basic aqueous solutions used in the production of fertilizer, glass, ceramics, explosives, soaps, chemicals, and wool treatments. It was the main compound once referred to as potash, although the term today is not reserved exclusively for potassium carbonate, but for several potassium salts. In the fertilizer industry, potash refers to potassium oxide, K2O, rather than potassium carbonate. Pearlash is a purer form of potash made by heating potash to remove impurities.

Verwenden

Potassium carbonate is used in the chemical industry as a source of inorganic potassium salts (potassium silicates, potassium bicarbonate), which are used in fertilizers, soaps, adhesives, dehydrating agents, dyes, and pharmaceuticals. Potassium carbonate used to make potassium lye produces soft soaps, which are liquids or semisolids rather than solids. Other uses of potassium carbonate includes use as a fire suppressant in extinguishers, as a CO2 absorbent for chemical processes and pollution control, an antioxidant in rubber additives, and in pharmaceutical formulations.

Vorbereitung Methode

Potassium carbonate can be obtained from ash or by electrolysis of potassium chloride. Another method involves reacting potassium hydroxide with carbon dioxide. The resulting liquid carbonate contains approximately 50% potassium carbonate in water. However, the solid product, which contains over 70% potassium carbonate, is expensive and only suitable for certain types of acidic soil. Additionally, neutralizing caustic potash with carbon dioxide also yields potassium carbonate.

Definition

ChEBI: Potassium carbonate is a potassium salt that is the dipotassium salt of carbonic acid. It has a role as a catalyst, a fertilizer and a flame retardant. It is a carbonate salt and a potassium salt.

Allgemeine Beschreibung

Potassium carbonate (K2CO3) is a white salt, soluble in water (insoluble in ethanol) which forms a strongly alkaline solution. It can be made as the product of potassium hydroxide's absorbent reaction with carbon dioxide. It presents a large capacity to absorb moisture.Corrosive to metals and tissue. Density 12.8 lb /gal. Used to make soaps, other potassium compounds, in liquid fertilizers.

Air & Water Reaktionen

Water soluble. Addition of water evolves heat.

Reaktivität anzeigen

Potassium carbonate neutralizes acids exothermically to form salts plus water. Reacts with certain metals (such as aluminum and zinc) to form oxides or hydroxides of the metal and generate gaseous hydrogen. May initiate polymerization reactions in polymerizable organic compounds, especially epoxides. May generate flammable and/or toxic gases with ammonium salts, nitrides, halogenated organics, various metals, peroxides, and hydroperoxides. May serve as a catalyst. Reacts when heated above about 84°C with aqueous solutions of reducing sugars other than sucrose, to evolve toxic levels of carbon monoxide [Bretherick, 5th Ed., 1995].

Hazard

Solutions irritating to tissue.

Health Hazard

TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.

Brandgefahr

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.

Sicherheitsprofil

Poison by ingestion. A strong caustic. Incompatible with KCO, chlorine trifluoride, magnesium. Mutation data reported. When heated to decomposition it emits toxic fumes of K2O.

läuterung methode

It crystallises from water between 100o and 0o. The solubility in H2O is 105% at 0o, 127% at 60o and 205% at 135o (b of saturated solution). After two recrystallisations of technical grade material, it had B, Li and Fe at 1.0, 0.04 and 0.01 ppm, respectvely. [D.nges in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 987 1963.]

Einzelnachweise

https://en.wikipedia.org/wiki/Potassium_carbonate
https://www.drugs.com/inactive/potassium-carbonate-106.html
http://www.sciencelab.com/msds.php?msdsId=9926681
https://pubchem.ncbi.nlm.nih.gov/compound/Potassium-Carbonate
Solubility of Potassium Carbonate and Potassium Hydrocarbonate in Methanol DOI:10.1021/JE020012V

Kaliumcarbonat Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Kaliumcarbonat Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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584-08-7(Kaliumcarbonat)Verwandte Suche:


  • POTASSIUMCARBONATE,ANHYDROUS,GRANULAR,FCC
  • POTASSIUMCARBONATE,ANHYDROUS,GRANULAR,PURIFIED
  • POTASSIUMCARBONATE,ANHYDROUS,GRANULAR,REAGENT,ACS
  • POTASSIUMCARBONATE,ANHYDROUS,GRANULAR,REAGENT,ACS(BULK
  • POTASSIUMCARBONATE,ANHYDROUS,GRANULAR,USP
  • POTASSIUM CARBONATE: 99.998% PURATREM
  • Potassium carbonate,99+%,for analysis,anhydrous
  • Potassium Carbonate, Puratronic (Metals Basis)
  • PotassiuM carbonate, 99+%, ACS reagent, anhydrous
  • PotassiuM carbonate, anhydrous, for analysis ACS, 99+% 100GR
  • PotassiuM carbonate, anhydrous, for analysis, 99+% 1KG
  • Potassium carbonate, extra pure, Ph Eur, USP, E 501, Ph Helv
  • Potassium carbonate, extra pure, Ph Eur, USP, E 501, Ph Helv, DAC
  • Potassium carbonate, reagent grade, ACS, ISO
  • "Potassium carbonate, anhydrous/ 99+%"
  • PotassiuM Carbonate (AS)
  • Potassium carbonate (99.997%-K) PURATREM
  • Potassium Carbonate 99.99%
  • Potassium Carbonate (1 g) (AS)
  • PotassiuM carbonate 99.995% trace Metals basis
  • PotassiuM carbonate anhydrous, powder, 99.99% trace Metals basis
  • PotassiuM carbonate BioXtra, >=99.0%
  • PotassiuM carbonate puruM p.a., anhydrous, >=99.0% (T)
  • PotassiuM carbonate reagent grade, >=98%, powder, -325 Mesh
  • High Purity PotassiuM Carbonate anhydrous
  • PotassiuM carbonate, 99.997% (Metals basis)
  • POTASSIUM CARBONATE FOR ANALYSIS EMSURE
  • PotassiuM Carbonate TS, (U.S.P. Test Solution)
  • SALT OF TARTAR
  • PEARL ASH
  • POTASSIUM CARBONATE
  • carbonatedepotassium
  • carbonateofpotash
  • PotassiumCarbonateAnhydrousAr
  • PotassiumCarbonatePurified(Anhydrous)
  • Carbonicacid,dipotassiumsalt
  • Carbonicaciddipotassiumsalt
  • kaliumcarbonicum
  • K-Gran
  • Montreal potash
  • Potassium carbonate (2:1)
  • potassiumcarbonate(2:1)
  • potassiumcarbonate[k2(co3)]
  • Sal absinthii
  • Salt of wormwood
  • Potassiumcarbonatehemihydrate,99%
  • (CRYSTAL)POTASSIUM CARBONATE 4N(SP)
  • Potassium carbonate, Puratronic(R), 99.997% (metals basis)
  • Potassium carbonate, ACS, 99.0% min
  • Dipotassium Cabonate
  • Potassium carbonate, powder, 99+%
  • Potassium Carbonate, granular
  • Potassium Carbonate, Anhydrous, Granular, Reagent
  • Potassiumcarbonate,ACSmin.99.9%;pwdr
  • Potassiumcarbonate,Puratronic?99.997%(metalsbasis)
  • POTASSIUM CARBONATE, POWDER
  • Potassium carbonate, anhydrous, for analysis ACS, 99+%
  • Potassium carbonate, anhydrous, for analysis, 99+%
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