Potassium hydroxide: Difference between revisions
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JeffEvarts (talk | contribs) (Created page with "{{Compound|chemf=KOH|group=salts |mm=56|mp=406|bp=1327|density=2.04|sol_aq=1210 |stp_p=solid|stp_q=white|nfpa_h=3|nfpa_r=1|nfpa_o=ALK }} ==Uses== ===Primary=== * Primary alkal...") |
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Latest revision as of 14:02, 25 June 2019
Chemical formula | KOH |
---|---|
OTP appearance | white solid |
Molar Mass(g/mol) | 56 |
Density(g/cc) | 2.04 |
Melting Point(°C) | 406 |
Boiling Point(°C) | 1327 |
Solubility in water(g/L) | 1210 |
NFPA 704 |
Uses
Primary
- Primary alkali used in the production of potassium salts from acids
- Key alkaline reagent
Natural occurrence
- Does not occur naturally.
Hazards
- Eye irritant
- Caustic, Corrosive
Production
Synthesis
- Metathesis: combine aqueous potassium carbonate and calcium oxide producing potassium hydroxide and calcium carbonate
- K2CO3(aq) + 2 Ca(OH)2(aq) → 2 KOH(aq) + 2 CaCO3(s)
Purification
- US patent 1562805 "Process for separating potassium and sodium hydroxides"
Link courtesy Google