Kalijum karbonat

Kalijum karbonat
IUPAC ime
Drugi nazivi Potaša
Identifikacija
CAS registarski broj 584-08-7
MeSH Potassium+carbonate
RTECS registarski broj toksičnosti TS7750000
Svojstva
Molekulska formula K2CO3
Molarna masa 138.2055 g/mol
Agregatno stanje Čvrsta bela higroskopna supstanca
Gustina 2.29 g/cm3, osnovno
Tačka topljenja

891 °C

Tačka ključanja

razgrađuje se

Rastvorljivost u vodi 112 g/100 mL (20 °C)
Opasnost
NFPA 704
0
2
0
 
Tačka paljenja nije zapaljiv
Srodna jedinjenja
Drugi katjoni litijum-karbonat, natrijum-karbonat, cezijum-karbonat



Ukoliko nije drugačije napomenuto, podaci se odnose na standardno stanje (25 °C, 100 kPa) materijala

Infobox references

Kalijum karbonat (molekulska formula K2CO3) je hemijsko jedinjenje, kalijumova so ugljene kiseline.[1][2] Kalijum karbonat je bezbojna kristalna supstancija veoma dobro rastvorljiva u vodi; 93.7 g u 100 g vode. Temperatura topljenja kalijum karbonata iznosi 891 °C. On gradi hidrate, u vodenim rastvorima se hidrolizuje. Pod uticajem kiselina podleže raspadu na ugljen dioksid i kalijum oksid.

Kalijum karbonat se dobija uvođenjem ugljen dioksida u vodeni rastvor kalijum hidroksida. Koristi se u industriji stakla, keramike, za produkciju sredstava za pranje, u fotografiji i za dobijanje drugih jedinjenja kalijuma.

Molekulska masa kalijum karbonata je 138.2 u.

Reference

  1. ↑ Housecroft C. E., Sharpe A. G. (2008). Inorganic Chemistry (3rd izd.). Prentice Hall. ISBN 978-0-13-175553-6. 
  2. ↑ Holleman A. F., Wiberg E. (2001). Inorganic Chemistry (1st edition izd.). San Diego: Academic Press. ISBN 0-12-352651-5. 

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