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Kaliumcarbonat Produkt Beschreibung

Potassium carbonate Struktur
584-08-7
CAS-Nr.
584-08-7
Bezeichnung:
Kaliumcarbonat
Englisch Name:
Potassium carbonate
Synonyma:
K2CO3;K-Gran;POTASH;PEARL ASH;Pearl dust;Sal absinthii;Kaliumcarbonat;SALT OF TARTAR;Montreal potash;alt of wormwood
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
Aggregatzustand
powder
Farbe
Yellow
Wichte
2.29
PH
11.5-12.5 (50g/l, H2O, 20℃)
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
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)
Alarmwort Warnung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H302 Gesundheitsschädlich bei Verschlucken. Akute Toxizität oral Kategorie 4 Warnung P264, P270, P301+P312, P330, P501
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.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P304+P340 BEI EINATMEN: Die Person an die frische Luft bringen und für ungehinderte Atmung sorgen.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen.
P337+P313 Bei anhaltender Augenreizung: Ärztlichen Rat einholen/ärztliche Hilfe hinzuziehen.
P405 Unter Verschluss aufbewahren.

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.

Chemische Eigenschaften

Potassium carbonate, potash, pearl ash, K2CO3, white solid, soluble, formed (1) in the ash when plant materials are burned, (2) by reaction of potassium hydroxide solution and the requisite amount of CO2.

Verwenden

Used (1) in making special glasses, (2) in the making of soft soap, (3) in the preparation of other potassium salts (a) in solution, (b) upon fusion; potassium hydrogen carbonate, potassium bicarbonate, potassium acid carbonate, KHCO3, white solid, soluble, (4) in vat dyeing and textile printing, (5) in titanium enamels, (6) in boiler water treating compounds, (7) in photographic chemical formulations, (8) in electroplating baths, and (9) as an important absorbent for CO2 in the process industries.

Verwenden

Potassium carbonate is used for numerous applications. Its primary use is in the production of specialty glasses and ceramics. It is used to make optical glass, glass used for video screens in televisions and computers, and laboratory glassware. Its is used in certain glasses rather then cheaper sodium carbonate owing to its better compatibility with lead, barium, and strontium oxides incorporated in these glasses. These oxides lower the melting point of glass and produce a softer glass. Potassium carbonate has a higher refractive index than sodium carbonate producing a more brilliant glass. Potassium carbonate is a common flux combined with titanium dioxide to produce frits used in ceramics. A frit is a calcined mixture of fine silica, a pigment, and a flux that is ground a specific particle size and used to produce glazes, enamels, and additives in glass making.
Potassium carbonate is used in agriculture and food production. Potassium carbonate is used as a spray or drip fertilizer and also as a constituent of compound fertilizers. Its high water solubility and alkaline property make it useful for supplying potassium to acidic soils, especially in vineyards and orchards. Dutch-processed cocoa uses potassium carbonate as an alkalizing agent to neutralize the natural acidity of cocoa. It is used to produce food additives like potassium sorbate and monopotassium phosphate.
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

The name potash comes fromthe traditional method of making potassium carbonate, which has been performed sinceancient times. Preparing potassium carbonate involved burning wood or other plant material,leaching the ashes in a wooden barrel covered on its bottom with straw, and then evaporatingor boiling away the water in the leachate in clay or iron pots to recover potassium and sodiumalkalis.

Definition

ChEBI: A potassium salt that is the dipotassium salt of carbonic acid.

Allgemeine Beschreibung

An aqueous solution of potassium hydroxide. 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.

Landwirtschaftliche Anwendung

Potassium carbonate (K2C03) in solution form can be used as a liquid fertilizer. A limited quantity of the solid is used as a non-chloride form of potassium for tobacco.
Potassium carbonate is obtained from ash. It is made by electrolysis of potassium chloride. Potassium hydroxide on reaction with carbon dioxide gives potassium carbonate. Liquid carbonate contains about 50% potassium carbonate in water. The solid product, which contains over 70% potassium carbonate is fairly expensive and is of use in only limited types of acid soil. Neutralizing caustic potash with carbon dioxide gas also produces potassium carbonate.

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.]

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:


  • PotassiumCarbonateFcc
  • PotassiumCarbonateAnhydrousK2CO3
  • PotassiumCarbonateAnhydrousAr
  • PotassiumCarbonatePurified(Anhydrous)
  • Carbonicacid,dipotassiumsalt
  • Carbonicaciddipotassiumsalt
  • dipotassiumcarbonate
  • K2CO3
  • Kaliumcarbonat
  • kaliumcarbonicum
  • K-Gran
  • Montreal potash
  • Pearl dust
  • 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)
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  • Potassium carbonate, powder, 99+%
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  • Potassium carbonate, anhydrous, for analysis ACS, 99+%
  • Potassium carbonate, anhydrous, for analysis, 99+%
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  • POTASSIUM CARBONATE, ANHYDROUS POWDER -325 MESH
  • POTASSIUM CARBONATE, ANHYDROUS REAGENT (ACS)
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  • 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
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