2lb ACS-grade Potassium Hydroxide in HDPE bottle with Alliance Chemical branding, GHS hazard symbols, black label design
2lb ACS-grade Potassium Hydroxide in HDPE bottles with corrosive/oxidizer warning symbols, black labels, Alliance Chemical
Alliance Chemical 2lb bottles of ACS-grade Potassium Hydroxide, HDPE containers with black labels, hazard warnings, 4-pack
Alliance Chemical company logo
One 55-lb bag of Alliance Chemical Potassium Hydroxide ACS Grade with black and red label.
Four 55-lb bags of Alliance Chemical Potassium Hydroxide ACS Grade with black and blue labels.
5 lb HDPE bottle of Alliance Chemical Potassium Hydroxide (KOH) ACS Grade
5 LB HDPE bottles of Alliance Chemical Potassium Hydroxide (KOH) ACS Grade black labels, silver caps
Alliance Chemical 5 lb bottles of ACS-grade Potassium Hydroxide flakes, HDPE containers with black labels and hazard

Potassium Hydroxide Flakes ACS Grade

Category : Bases

$19.12
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Potassium Hydroxide Flakes ACS Grade

$19.12
2lb ACS-grade Potassium Hydroxide in HDPE bottle with Alliance Chemical branding, GHS hazard symbols, black label design
2lb ACS-grade Potassium Hydroxide in HDPE bottles with corrosive/oxidizer warning symbols, black labels, Alliance Chemical
Alliance Chemical 2lb bottles of ACS-grade Potassium Hydroxide, HDPE containers with black labels, hazard warnings, 4-pack
Alliance Chemical company logo
One 55-lb bag of Alliance Chemical Potassium Hydroxide ACS Grade with black and red label.
Four 55-lb bags of Alliance Chemical Potassium Hydroxide ACS Grade with black and blue labels.
5 lb HDPE bottle of Alliance Chemical Potassium Hydroxide (KOH) ACS Grade
5 LB HDPE bottles of Alliance Chemical Potassium Hydroxide (KOH) ACS Grade black labels, silver caps
Alliance Chemical 5 lb bottles of ACS-grade Potassium Hydroxide flakes, HDPE containers with black labels and hazard
  • Description
  • Product Documents
  • Chemical Profile

Product Overview

Potassium Hydroxide Flakes ACS Grade is a high-purity, white crystalline inorganic compound with the formula KOH. Commonly known as Caustic Potash or Potash Lye, this strong alkaline base is manufactured to meet the rigorous specifications of the American Chemical Society (ACS). It is a critical reagent for analytical laboratories, chemical synthesis, and industrial pH control where low impurity levels are essential.

This ACS-grade material is characterized by a typical assay of 98%, ensuring potent and predictable performance in base-mediated reactions and electrolyte formulations. Its low residue after ignition and strict limits on trace metals (such as iron and lead) prevent contamination in sensitive processing environments. The flake form allows for easy handling, weighing, and rapid dissolution in water, ethanol, and glycerol.

Key Properties

  • Appearance: White crystalline flakes
  • Grade: ACS Reagent Grade
  • CAS Number: 1310-58-3
  • Formula: KOH
  • Assay: 85–100% (Typical 98%)
  • Molecular Weight: 56.11 g/mol
  • Solubility: Highly soluble in water, ethanol, glycerol
  • Iron (Fe): Max 0.2 ppm
  • Heavy Metals (as Pb): Max 0.2 ppm

Common Applications

  • Chemical Synthesis: Functions as a strong base for deprotonation, transesterification, and organic synthesis in batch manufacturing.
  • Laboratory Reagent: Used in titrations, analytical methods, and the preparation of standard alkaline solutions for qualitative analysis.
  • pH Control & Water Treatment: effective for neutralizing acidity and stabilizing pH levels in industrial effluent and processing water.
  • Electrolyte Formulation: Serves as a primary component in alkaline battery electrolytes due to its high ionic conductivity.
  • Industrial Processing: Utilized in biodiesel production, soap manufacturing (soft soaps), and specialized cleaning formulations.

Safety & Handling

Potassium Hydroxide is a Corrosive Solid (Class 8). It causes severe skin burns and eye damage. Proper Personal Protective Equipment (PPE), including chemical-resistant gloves, splash goggles, and face shields, must be worn during handling. Store in a cool, dry area in tightly closed containers, away from moisture, acids, and reactive metals (such as aluminum/zinc). This product is hygroscopic and will absorb moisture from the air rapidly.

Related Products

Property Value
Molecular Weight 56.11 g/mol
Formula KOH
Grade ACS
Flash Point N/A
Form Solid
Solubility High water solubility, dissolves in alcohols
Appearance White, crystalline hygroscopic flakes
Melting Point 360 °C
Boiling Point 1320 °C
Specific Gravity 2.044
Industry Industrial, Chemical, Wastewater

Frequently Asked Questions About Potassium Hydroxide Flakes ACS Grade

What is Potassium Hydroxide Flakes ACS Grade and what is its chemical formula?
Potassium Hydroxide Flakes ACS Grade is a chemical compound with the molecular formula KOH, registered under CAS Number 1310-58-3 by the Chemical Abstracts Service (PubChem), with a molecular weight of 56.11 g/mol. Alliance Chemical supplies Potassium Hydroxide Flakes ACS Grade in ACS grade for laboratory, industrial, and commercial applications.
What are the physical properties of Potassium Hydroxide Flakes ACS Grade?
According to the NIOSH Pocket Guide to Chemical Hazards, Potassium Hydroxide Flakes ACS Grade is supplied as a solid with a white, crystalline hygroscopic flakes appearance. It has a melting point of 360°C, a boiling point of 1320°C, a flash point of N/A. The specific gravity is 2.044 relative to water. Solubility: High water solubility, dissolves in alcohols.
What grade and purity of Potassium Hydroxide Flakes ACS Grade does Alliance Chemical offer?
Alliance Chemical offers Potassium Hydroxide Flakes ACS Grade in ACS grade. Every lot ships with a Certificate of Analysis (COA) and Safety Data Sheet (SDS) prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and GHS Revision 7. Download SDS.
What are common industrial applications of Potassium Hydroxide Flakes ACS Grade?
Potassium Hydroxide Flakes ACS Grade serves a wide range of sectors, including Industrial, Chemical, and Wastewater.Alliance Chemical provides the documentation and quality certifications required for use in regulated environments.
What PPE is required when handling Potassium Hydroxide Flakes ACS Grade?
OSHA-mandated PPE per 29 CFR 1910.132-138:Chemical-resistant gloves (20+ mil neoprene or PVC), full face shield over safety goggles (ANSI Z87.1), acid-resistant apron or chemical suit, closed-toe chemical-resistant footwear. Respiratory protection (organic vapor cartridge) required in areas exceeding PEL/TLV per 29 CFR 1910.134. Emergency eyewash station and safety shower must be accessible within 10 seconds per ANSI Z358.1. Consult the SDS available from Alliance Chemical for complete PPE requirements.
What are the storage requirements for Potassium Hydroxide Flakes ACS Grade?
Store perOSHA 29 CFR 1910.106: Approved flammable storage cabinet, maximum 60 gallons per cabinet, grounding/bonding required. Temperature range:15-25°C. Segregate from:acids, aluminum, zinc. Maximum storage:2-3 years unopened.
What is the emergency spill procedure for Potassium Hydroxide Flakes ACS Grade?
Emergency response per EPA SPCC (40 CFR 112) and OSHA 29 CFR 1910.120: (1) Alert personnel, evacuate area to 100 feet. (2) Eliminate ignition sources if flammable. (3) Don PPE per SDS Section 8. (4) Stop leak if safe; use emergency shutoffs. (5) Contain with non-combustible absorbent materials, dike with sand/earth. (6)Neutralize with citric acid or acetic acid (5% solution). (7) Collect in DOT-approved containers, label as hazardous waste. Check 40 CFR 302.4 for Reportable Quantity. Emergency: Chemtel 1-800-255-3924 (24/7). Non-emergency: Alliance Chemical 512-365-6838.
What is the DOT shipping classification for Potassium Hydroxide Flakes ACS Grade?
DOT Classification per 49 CFR 172.101:See SDS Section 14 for specific UN number, Hazard Class8 (Corrosive), Packing GroupII/III. Requires: Hazmat shipping papers (49 CFR 172.200), UN specification packaging (49 CFR 173), hazmat labels (172.400). Alliance Chemical ships all orders in DOT-compliant packaging with proper documentation.
How must Potassium Hydroxide Flakes ACS Grade waste be disposed?
Disposal per RCRA (40 CFR 261-265):Characteristic waste D002 (Corrosive, pH ≤2 or ≥12.5). Generator requirements: EPA ID number required if >100 kg/month (40 CFR 262.12). Use EPA-permitted Treatment, Storage, Disposal Facility (TSDF). Never discharge to sewer without POTW written approval (40 CFR 403). Container disposal: Triple rinse (40 CFR 261.7), offer for reconditioning/recycling. State regulations may be more stringent — check with your local environmental agency. Consult the Alliance Chemical SDS for product-specific disposal guidance.
Does Alliance Chemical provide an SDS and COA for Potassium Hydroxide Flakes ACS Grade?
Yes. Alliance Chemical provides a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for every lot of Potassium Hydroxide Flakes ACS Grade. The SDS is prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and the Globally Harmonized System (GHS) Revision 7, covering all 16 required sections including hazard identification, first aid measures, firefighting measures, handling and storage, exposure controls, and regulatory information. The SDS is available for download directly from this product page. COAs are available upon request by contacting Alliance Chemical at 512-365-6838.

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