Potassium hydroxide

Potassium hydroxide
Names
	IUPAC name Potassium hydroxide
	Ither names Caustic potash, Potash lye, Potassia, Potassium hydrate
Identifiers
CAS Nummer	1310-58-3 ;
3D model (JSmol)	Interactive eemage;
ChEBI	CHEBI:32035 ;
ChemSpider	14113 ;
EC Nummer	215-181-3
PubChem CID	14797;
RTECS nummer	TT2100000
UNII	WZH3C48M4T ;
UN nummer	1813
	InChI InChI=1S/K.H2O/h;1H2/q+1;/p-1 Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M ; InChI=1/K.H2O/h;1H2/q+1;/p-1 Key: KWYUFKZDYYNOTN-REWHXWOFAT;
	SMILES [K+].[OH-];
Properties
Chemical formula	HKO
Molar mass	56.11 g·mol−1
Appearance	white solid, deliquescent
Odour	odorless
Density	2.044 g/cm3 (20 °C); 2.12 g/cm3 (25 °C)
Meltin pynt	406 °C (763 °F; 679 K)
Bylin pynt	1,327 °C (2,421 °F; 1,600 K)
Solubility in watter	85 g/100 g (-23.2 °C); 97 g/100 mL (0 °C); 121 g/100 mL (25 °C); 138.3 g/100 mL (50 °C); 162.9 g/100 mL (100 °C)
Solubility	soluble in alcohol, glycerol ; insoluble in ether, liquid ammonia
Solubility in methanol	55 g/100 g (28 °C)
Acidity (pKa)	13.5 (0.1 M)
Refractive index (nD)	1.409 (20 °C)
Structur
Creestal structur	rhombohedral
Thermochemistry
Speceefic heat capacity, C	65.87 J/mol·K
Staundart molar; entropy So298	79.32 J/mol·K
Std enthalpy o; formation ΔfHo298	-425.8 kJ/mol
Gibbs free energy (ΔfG˚)	-380.2 kJ/mol
Hazards
GHS pictograms
GHS signal wird	Danger
GHS hazard statements	H302, H314
GHS precautionary statements	P280, P305+351+338, P310
NFPA 704	0 3 1
Flash pynt	Non-flammable
	Lethal dose or concentration (LD, LC):
LD50 (Median dose)	273 mg/kg (oral, rat)
Relatit compoonds
Ither anions	Potassium hydrosulfide; Potassium amide
Ither cations	Lithium hydroxide; Sodium hydroxide; Rubidium hydroxide; Caesium hydroxide
	Except whaur itherwise notit, data are gien for materials in thair staundart state (at 25 °C [77 °F], 100 kPa).
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	Infobox references

Potassium hydroxide is an inorganic compoond wi the formula K OH, commonly cried caustic potash.

References

1 2 Lide, D. R., ed. (2005). CRC Handbook of Chemistry and Physics (86th ed.). Boca Raton (FL): CRC Press. p. 4-80. ISBN 0-8493-0486-5.
1 2 3 4 5 6 "Archived copy". Archived frae the original on 18 Mey 2014. Retrieved 11 September 2014.CS1 maint: archived copy as title (link)
↑ Seidell, Atherton; Linke, William F. (1952). [Google Books Solubilities of Inorganic and Organic Compounds] Check |url= value (help). Van Nostrand. Retrieved 29 Mey 2014.
1 2 Zumdahl, Steven S. (2009). Chemical Principles 6th Ed. Houghton Mifflin Company. p. A22. ISBN 0-618-94690-X.
1 2 3 Sigma-Aldrich Co. Retrieved on 2014-05-18.
↑ http://chem.sis.nlm.nih.gov/chemidplus/rn/1310-58-3

[crc-1] 1 2 Lide, D. R., ed. (2005). CRC Handbook of Chemistry and Physics (86th ed.). Boca Raton (FL): CRC Press. p. 4-80. ISBN 0-8493-0486-5.

[chemister-2] 1 2 3 4 5 6 "Archived copy". Archived frae the original on 18 Mey 2014. Retrieved 11 September 2014.CS1 maint: archived copy as title (link)

[sioc-3] Seidell, Atherton; Linke, William F. (1952). [Google Books Solubilities of Inorganic and Organic Compounds] Check |url= value (help). Van Nostrand. Retrieved 29 Mey 2014.

[b1-4] 1 2 Zumdahl, Steven S. (2009). Chemical Principles 6th Ed. Houghton Mifflin Company. p. A22. ISBN 0-618-94690-X.

[sigma-5] 1 2 3 Sigma-Aldrich Co. Retrieved on 2014-05-18.

[6] ttp://chem.sis.nlm.nih.gov/chemidplus/rn/1310-58-3

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