Potassium hydroxide pure (KOH)

Product no.: 112


can be shipped within 2 days

starting from 8.97
Price including VAT, plus shipping
Delivery weight: 1.1 kg


Potassium hydroxide pure (KOH)

 

Specifications:

Assay min. 85,0 - 100 %

Carbonates (CO3) max. 1,5%

Chlorides (Cl) max. 0,01%

Sulfates (SO4) max. 0,005%

Phosphates (PO4) max. 0,003%

Heavy metals max. 0,002%

(Fe) max. 0,001%

(Ca)max. 0,003%

 

Additional informations:

Potassium hydroxide

IUPAC name

Potassium hydroxide

Other names

Caustic potash, Potash lye, Potassia, Potassium hydrate

Identifiers

CAS number

1310-58-3 Yes

PubChem

14797

ChemSpider

14113 Yes

UNII

WZH3C48M4T Yes

EC number

215-181-3

UN number

1813

ChEBI

CHEBI:32035 Yes

RTECS number

TT2100000

Properties

Molecular formula

HKO

Molar mass

56.11 g mol−1

Appearance

white solid, deliquescent

Odor

odorless

Density

2.044 g/cm3 (20 °C)
2.12 g/cm3 (25 °C)

Melting point

406 °C (763 °F; 679 K)

Boiling point

1,327 °C (2,421 °F; 1,600 K)

Solubility in water

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)

Structure

Crystal structure

rhombohedral

Thermochemistry

Specific
heat capacity C

65.87 J/mol·K

Std molar
entropy So298

79.32 J/mol·K

Std enthalpy of
formation ΔfHo298

-425.8 kJ/mol

Gibbs free energy ΔG

-380.2 kJ/mol

Hazards

GHS pictograms

The corrosion pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS)The exclamation-mark pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS)

GHS signal word

Danger

GHS hazard statements

H302, H314

GHS precautionary statements

P280, P305+351+338, P310

EU Index

019-002-00-8

EU classification

CorrosiveC HarmfulXn

R-phrases

R22, R35

S-phrases

(S1/2), S26, S36/37/39, S45

Flash point

Non-flammable

LD50

273 mg/kg (rat, oral)

Related compounds

Other anions

Potassium hydrosulfide
Potassium amide

Other cations

Lithium hydroxide
Sodium hydroxide
Rubidium hydroxide
Caesium hydroxide

Related compounds

Potassium oxide

Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)

 

Additional product information

Safety data sheet Download

Accessories

Product Note Status Price
Potassium hydroxide puriss. p.a. (KOH) Potassium hydroxide puriss. p.a. (KOH)
12.10 € *
Potassium hydroxide technical (KOH) Potassium hydroxide technical (KOH)
starting from 7.99 € *
* Prices including VAT plus shipping
Display accessory details

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