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P1767

Potassium hydroxide

≥85% KOH basis, pellets, white

Synonym(s):

Caustic potash

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About This Item

Linear Formula:
KOH
CAS Number:
1310-58-3
Molecular Weight:
56.11
PubChem Substance ID:
329820107
eCl@ss:
38100303
UNSPSC Code:
12352106
NACRES:
NA.21
EC Number:
215-181-3
MDL number:
MFCD00003553
Assay:
≥85% KOH basis
Form:
pellets
Solubility:
water: soluble ((1,130 g/l (68 °F / 20 °C))
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vapor pressure

1 mmHg ( 719 °C)

Quality Level

200

assay

≥85% KOH basis

form

pellets

impurities

≤2.0% K2CO3

color

white

pH

~13.5 (25 °C, 5.6 g/L)

mp

361 °C (lit.)

solubility

water: soluble ((1,130 g/l (68 °F / 20 °C))

SMILES string

[OH-].[K+]

InChI

1S/K.H2O/h;1H2/q+1;/p-1

InChI key

KWYUFKZDYYNOTN-UHFFFAOYSA-M

General description

Potassium hydroxide, also known as caustic potash, is a water soluble strong base. The electron scattering in KOH has been investigated. Its infrared spectrum has been recorded and analyzed. The impact of surface functionalization of active carbons using KOH has been studied. Its role as a catalyst in the Michael addition reaction has been explored.

Application

Potassium hydroxide (KOH) has been used to prepare methanolic-KOH that is employed in a protocol for saponification of fruit extracts.
KOH has been used for adjusting pH during the preparation of the following:
  • Murashige and Skoog (MS) agar plates
  • MS liquid medium
  • MES ((2-(N-morpholino)-ethanesulfonic acid hydrate) solution
  • microtubule stabilizing buffer (MTSB)
  • 4% paraformaldehyde fixative (PFA)

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pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A

Storage Class

8A - Combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

P1767-2KG:4.548173205441E12 + P1767-250G:4.548173205434E12 + P1767-1KG:4.548173205427E12 + P1767-500G:4.548173205458E12

jan

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Certificates of Analysis (COA)

Lot/Batch Number
0000527419
0000553065
0000485407
0000398152
0000527412

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Protocols

Enzymatic Assay of Catalase (EC 1.11.1.6)

This procedure may be used for all Catalase products.

Enzymatic Assay of Ficin (EC 3.4.22.3)

This procedure may be used for all Ficin products.

Carotenoid Extraction and Quantification from Capsicum annuum.
Richins RD, et al.
Bio-protocol, e1256-e1256 (2014)
Vibrational spectrum of crystalline potassium hydroxide.
Snyder RG, et al.
J. Chem. Phys. , 33(4), 1171-1177 (1960)
Michael addition catalyzed by potassium hydroxide under ultrasound.
Li JT, et al.
Synthetic Communications, 33(3), 353-359 (2003)
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