Potassium hydroxide

CAS 1310-58-3KOHAcids & Bases

Potassium hydroxide (CAS: 1310-58-3, Formula: KOH) is a strong inorganic base with a molecular weight of 56.11 g/mol. It is highly soluble in water and readily absorbs moisture and carbon dioxide from the air. Known for its corrosive nature, potassium hydroxide is widely employed across various industrial processes including soap and detergent manufacturing, chemical synthesis, and as a pH regulator.

IUPAC: Caustic potash

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Potassium hydroxide (KOH) — chemical structure, CAS 1310-58-3; Chemistry, fine chemical supplied by Tech Serve Solutions

Acids & BasesBasesChemical SynthesisInorganic BasesSynthetic Reagents

01 /Applications

Chemical Synthesis

Potassium hydroxide serves as a versatile reagent in organic and inorganic synthesis. It is frequently used as a catalyst, a dehydrating agent, or to facilitate reactions requiring a strong alkaline medium. Its high reactivity makes it indispensable in producing various potassium salts.

Industrial Cleaning

Due to its strong alkaline properties, KOH is effective in removing grease, oils, and organic residues. It is a key component in industrial cleaning formulations and in the manufacturing of alkaline batteries.

pH Adjustment

Potassium hydroxide is used to increase the pH of aqueous solutions in a wide range of industrial applications, including water treatment and chemical processing. Its strong basicity allows for efficient neutralisation of acidic components.

Soap and Detergent Production

It is a crucial ingredient in the saponification process for producing soft soaps and liquid detergents. The reaction between KOH and fatty acids yields potassium soaps, which are typically softer and more soluble than their sodium counterparts.

02 /Properties

Molecular weight	56.11
Linear formula	KOH
Assay	≥85%
Concentration	0.5 M1/2 N
Vapour pressure	1 mmHg (719 °C)
Impurities tested	≤0.001% N compounds≤2.0% K2CO310-15% water
Melting point	361 °C(lit.)

03 /Safety & handling

GHS hazard pictogram: Corrosive (GHS05) — Corrosive

GHS hazard pictogram: Harmful / irritant (GHS07) — Harmful / irritant

Danger

Hazard statements

H290May be corrosive to metals
H302Harmful if swallowed
H314Causes severe skin burns and eye damage

Precautionary statements

P280Wear protective gloves, clothing and eye/face protection
P305IF IN EYES
P310Immediately call a POISON CENTER or doctor

Transport (UN / ADR)	UN 1813 8 / PGII
Water hazard class (WGK, DE)	1
Hazard codes (EU)	C
Risk statements (R)	22-35
Safety statements (S)	26-36/37/39-45
Cation traces	Ca: ≤0.005%Fe: ≤0.001%Mg: ≤0.002%Na: ≤0.05%Ni: ≤0.001%heavy metals (as Pb): ≤0.001%
Anion traces	chloride (Cl-): ≤0.01%phosphate (PO43-): ≤5 ppmsulfate (SO42-): ≤0.003%

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

1310-58-3

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is Potassium Hydroxide used for?

Potassium hydroxide is used in chemical synthesis, industrial cleaning, pH adjustment, and the production of soaps and detergents.

What is the CAS number and formula for Potassium Hydroxide?

The CAS number for Potassium Hydroxide is 1310-58-3, and its formula is KOH.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies Potassium Hydroxide with an assay of ≥85%. We do not represent this product as USP, BP, or EP grade unless explicitly stated in the product specifications.

How should Potassium Hydroxide be handled safely?

Potassium hydroxide is corrosive and can cause severe skin burns and eye damage. Appropriate personal protective equipment, including gloves, eye protection, and protective clothing, must be worn. Handle in a well-ventilated area and avoid contact with skin, eyes, and clothing.

How is Potassium Hydroxide packed, shipped, and exported?

Potassium hydroxide is classified as corrosive (UN 1813, Class 8, Packing Group II) for transport. Tech Serve Solutions adheres to all international shipping regulations for hazardous materials, ensuring safe and compliant packaging, handling, and export.