Potassium Hydroxide 45% Solution Technical Grade

Name: Quick Facts: Potassium Hydroxide 45% Solution Technical Grade
Creator: Alliance Chemical
License: https://alliancechemical.com/policies/terms-of-service

Potassium Hydroxide

Technical grade covers cleaning, pH adjustment, saponification and general neutralization at the same 45% strength. Choose ACS Grade instead when titration accuracy or trace-metal limits drive the result.

Active ingredient: potassium hydroxide, also known as caustic potash · potash lye
CAS number: 1310-58-3
Formula: KOH
Molecular weight: 56.106 g/mol
Concentration: 45%
Grade: Technical Grade
Boiling point: 132 to 133 °C (270 to 271 °F) (aqueous solution)

How it is classified for shipping

UN number: UN1814
Hazard class: 8 Corrosive
Packing group: II

Proper shipping name Potassium hydroxide solution

Hazards

Signal word Danger

Corrosive
Irritant

Summary only. Read the SDS and the container label for complete hazard and handling information.

SDS also in

Who uses it

Cleaning-product formulators, biodiesel producers running potassium-catalysed transesterification, soap makers, and processors dosing alkalinity. It is the ready-to-meter alternative to dissolving flake on site.

Manufacturing & Industrial

Representative industry photos.

Product quick facts

CAS 1310-58-3KOHUN1814

Potassium Hydroxide 45% Solution Technical Grade (CAS 1310-58-3) is a 45% Technical Grade liquid with molecular formula KOH and a molecular weight of 56.106 g/mol, for industrial and manufacturing applications. Its active ingredient, potassium hydroxide, is also known as caustic potash and potash lye. It ships as DOT Hazard Class 8. Alliance Chemical supplies this product in 7 container sizes from 1 Quart to 330 Gallon (16 pack options) with 1-2 business day shipping from Taylor, TX on in-stock orders, plus SDS and lot-specific Certificate of Analysis.

Pack sizes 7 container sizes (1 Quart to 330 Gallon) · 16 pack options
Purity / spec 45% Technical Grade
Lead time In-stock orders placed by Mon-Thu 2 PM CT / Fri 12 PM CT typically ship within 1-2 business days.
Regional availability View state-by-state shipping pages

Request Bulk Quote (512) 365-6838

Stock footage.

How it ships.

Regulated products are packed, marked, and labeled for hazmat transport, from one quart to a pallet of drums.

Most stocked orders ship in 1–2 business daysOrder cutoff: Mon-Thu 2 PM CT / Fri 12 PM CT
Hazmat packing, marking, and labelingPacked by staff trained under DOT rule 49 CFR 172.704
UPS Ground for bottles, jugs, and up to three pailsLTL freight for four or more pails, drums, and totes. Liftgate on request.

Ships with
FedEx Freight
Southeastern Freight Lines

Buying for a company or agency?

Pay by card at the listed price, or order on Net 30 terms once your credit is approved. For NSN and contract requirements, send an RFQ.

CAGE code: 1LT50
UEI: DCTCZDY3BLD3
Primary NAICS: 424690
Ownership: Woman-Owned
Federal supply: DLA Supplier
Terms: Net 30 on approved credit, W-9 on request

Apply for Net 30 Email a purchase order Vendor qualification documents

Gloved hands strapping four blue chemical drums to a pallet at a warehouse loading dock — Illustration.

Safety data sheets and certificates.

Find an SDS or TDS by product name or CAS number. Certificates of analysis are free on request.

Find an SDS or COA

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Description
Product Documents
Chemical Profile

Potassium hydroxide 45% solution — commonly called caustic potash or liquid KOH — supplied ready to use as a clear, colorless, strongly alkaline liquid at 45% w/w. No dissolving, no heat of solution to manage, no handling of flake or pellets.

45% is the workhorse concentration for liquid caustic potash. It stays fluid at normal storage temperatures, and it is the concentration most commonly specified where a carbonate-free alkali source is called for.

Typical applications

Alkaline cleaning, degreasing, and CIP formulations
pH adjustment and alkalinity control
Biodiesel transesterification catalyst
Liquid soap and potassium soap manufacture
Electroless plating and metal surface treatment
Alkaline electrolyte preparation

Typical properties

Chemical name	Potassium hydroxide solution
Synonyms	Caustic potash, potassium hydrate, liquid KOH
CAS number	1310-58-3
Formula	KOH
Concentration	45% w/w
Grade	Technical
Appearance	Clear, colorless to slightly straw liquid
Specific gravity	Approx. 1.456 at 20 °C
Weight per gallon	Approx. 12.15 lb

Shipping and handling

UN1814, Potassium hydroxide solution, Class 8, PG II. Corrosive — causes severe skin burns and eye damage. Wear chemical splash goggles, face shield, and chemical-resistant gloves. Store in a closed container away from acids and reactive metals. Always add caustic to water, never water to caustic.

A Safety Data Sheet is supplied with every order and is available on request before purchase. Certificate of Analysis available by lot.

Frequently Asked Questions About Potassium Hydroxide 45% Solution Technical Grade

Is this a ready-to-use solution or do I have to dilute it?

It is a ready-to-use 45% w/w aqueous solution. There is no dissolution step and no heat of solution to manage at your facility — one of the highest-risk moments in caustic handling simply never happens.

What is the difference between potassium hydroxide and sodium hydroxide?

Both are strong alkalis, but KOH is preferred where potassium salts are wanted rather than sodium — potassium soaps are softer and more soluble, and in alkaline electrolysis the potassium ion's smaller hydration radius gives higher ionic conductivity at the same concentration.

What materials are compatible for storage?

High-density polyethylene, polypropylene and suitably lined steel. Avoid aluminium, zinc, tin and their alloys — caustic potash attacks them and can generate flammable hydrogen. Keep containers closed to limit carbon dioxide pickup.

What PPE is required for handling?

Chemical splash goggles, face shield, chemical-resistant gloves and body coverage for any open transfer. These follow directly from the GHS classification (H314, causes severe skin burns and eye damage). Keep an eyewash and safety shower in the immediate work area.

Do you provide an SDS and a Certificate of Analysis?

Yes. The Safety Data Sheet (SDS) and a lot-specific Certificate of Analysis (COA) are available on request at no charge.

What is Potassium Hydroxide 45% Solution Technical Grade and what is its chemical formula?

Potassium Hydroxide 45% Solution Technical Grade is listed under CAS 1310-58-3 (PubChem reference search). The catalog formula is KOH. The listed molecular weight is 56.106 g/mol. For solutions and blends, identity values may describe a constituent; consult the product SDS for composition.

What are the physical properties of Potassium Hydroxide 45% Solution Technical Grade?

Catalog reference information for Potassium Hydroxide 45% Solution Technical Grade: form: Liquid; melting point: -33 to -28.9 °C (-27 to -20 °F), freezing point (aqueous solution); boiling point: 132 to 133 °C (270 to 271 °F) (aqueous solution); specific gravity: 1.456; reference values may describe a pure substance rather than the supplied concentration or blend. Confirm applicable conditions and specifications in the product documents; these values are not batch test results.

What grade and purity of Potassium Hydroxide 45% Solution Technical Grade does Alliance Chemical offer?

Alliance Chemical lists Potassium Hydroxide 45% Solution Technical Grade in Technical Grade with a concentration or assay of 45%. Check the product specification for the measurement basis and acceptance limits. A grade label alone does not establish certification or suitability for a regulated application. For batch results, request a COA using the product name and lot number.

What are common industrial applications of Potassium Hydroxide 45% Solution Technical Grade?

Catalog industry categories for Potassium Hydroxide 45% Solution Technical Grade include Manufacturing & Industrial. To evaluate it for your process, compare the listed grade, concentration and product specifications with your requirements. Contact Alliance Chemical to confirm any application-specific documentation or certification before ordering.

What are the hazards of Potassium Hydroxide 45% Solution Technical Grade and where do I find handling guidance?

Per its GHS classification (SDS Section 2), Potassium Hydroxide 45% Solution Technical Grade carries the signal word Danger and the following hazard statements: H290 (May be corrosive to metals); H302 (Harmful if swallowed); H314 (Causes severe skin burns and eye damage). Product-specific first aid, fire-fighting, spill response, handling, storage, exposure controls/PPE, and disposal guidance are in SDS Sections 4-8 and 13 — always consult the SDS before use. Download the SDS.

What is the DOT shipping classification for Potassium Hydroxide 45% Solution Technical Grade?

The catalog transport entry lists UN1814, hazard class 8, packing group II. Consult SDS Section 14 and confirm the requirements for your selected pack size and shipping destination with Alliance Chemical.

How must Potassium Hydroxide 45% Solution Technical Grade waste be disposed?

Consult SDS Section 13 for disposal information for Potassium Hydroxide 45% Solution Technical Grade. Disposal requirements depend on the resulting waste, contamination and location. Have your site's responsible waste professional determine the appropriate waste classification and disposal method. View the SDS.

Does Alliance Chemical provide an SDS and COA for Potassium Hydroxide 45% Solution Technical Grade?

Search the document library for Potassium Hydroxide 45% Solution Technical Grade. The SDS is also available here. A sample COA describes specifications and does not establish the results for your shipment. To request a lot-specific COA or confirm document availability, contact Alliance Chemical with the product name and lot number.