Hóa Chất KOH 90% - Potassium Hydroxide (Kali Hidroxit / Kali Hydroxit Vảy)

Potassium Hydroxide 90% Flake – Caustic Potash Flakes Korea for Fertilizers, Cosmetics & Industrial Manufacturing (25Kg Bag)

Potassium hydroxide 90 flake (commonly known as caustic potash flakes korea, chemical formula KOH) is an essential, high-purity inorganic alkaline compound directly imported from South Korea (Made in Korea). Formulated to comply with international reference standards including Food Chemicals Codex IV (FCC IV), food additive FAIA E525 (fcc iv koh flakes), Halal, and Kosher certifications, this premium chemical guarantees an active assay of minimum 90.0% Min. Distinguished by strictly controlled trace impurities—such as low iron (Fe ≤ 3 ppm) and minimal nickel—it dissolves into a crystal-clear solution without insoluble turbidity. Packaged in heavy-duty koh 90 flake 25kg woven bags with moisture-barrier liners, this industrial potassium hydroxide grade serves as an indispensable reagent for chloride-free potassium humate fertilizers, liquid soaps, alkaline batteries, and chemical synthesis, making it the premier choice for commercial enterprises seeking to buy potassium hydroxide bulk.

Technical Specification Standards – Potassium Hydroxide Flake 90% (Specifications)

Chemical Dynamics & Key Technological Advantages

• High Chemical Purity with Trace Metallic Impurities: Sourced from precision Korean membrane cell electrolysis, active KOH content is maintained at ≥ 90.0% while strictly limiting iron (Fe ≤ 3 ppm) and nickel (Ni ≤ 5 ppm). When dissolved, it produces a sparkling, water-clear alkaline liquor that prevents color distortion in ceramic glazes, cosmetic soaps, and premium foliar fertilizer formulations.
• Superior Alkaline Reactivity & Ionic Mobility vs. NaOH: The potassium cation (K⁺) possesses a larger ionic radius and lower hydration energy than the sodium cation (Na⁺), granting higher ionic mobility and faster dissociation kinetics. Saponification reactions with fats proceed more rapidly, yielding potassium fatty acid soaps with superior cold-water solubility, fine lather, and exceptional mildness compared to sodium-based soaps.
• Chloride-Free Potassium Source for Advanced Agriculture: With chloride restricted to ≤ 0.015% KCl, KOH serves as the primary alkaline neutralizer for humic, fulvic, and phosphoric acids. It generates 100% water-soluble potassium humates and foliar sprays that provide readily bioavailable potash without elevating soil salinity or causing leaf-tip scorch in chloride-sensitive crops (durian, tobacco, citrus).
• Heavy-Duty Moisture-Proof 25kg Packaging: Solid KOH flakes are intensely deliquescent and react rapidly with atmospheric CO₂ to form carbonates. The 25.0 kg package features a high-tensile woven polypropylene outer bag paired with an airtight virgin polyethylene inner liner, ensuring free-flowing flakes without caking throughout humid storage.

Core Industrial & Agricultural Applications

Engineered for high chemical reactivity and certified to international standards (FCC IV, E525, Halal, Kosher), caustic potash flakes korea serves diverse manufacturing processes:

• High-Tech Fertilizer & Agricultural Formulations:
  • Primary alkaline reactant used to neutralize humic and fulvic acids, producing 100% soluble Potassium Humate and Potassium Fulvate.
  • Acts as a clean potassium source in chloride-free liquid NPK fertigation recipes and organic foliar bio-stimulants.
• Chemical Synthesis & Industrial Potassium Salts:
  • Essential precursor for manufacturing Potassium Carbonate (K₂CO₃), Potassium Permanganate (KMnO₄), Potassium Silicate (K₂SiO₃), and specialty potassium phosphates used in optical glass and fireproofing.
• Personal Care, Liquid Soaps & Specialty Detergents:
  • Saponification agent for vegetable oils and fatty acids to produce clear liquid soaps, shaving creams, body washes, and surgical scrub soaps.
  • High-strength alkaline degreasing agent in Clean-In-Place (CIP) cleaning solutions for food and beverage dairy plants.
• Alkaline Batteries & Renewable Energy:
  • High-conductivity electrolyte in primary alkaline zinc-manganese dioxide batteries and industrial rechargeable nickel-cadmium batteries.
  • Transesterification catalyst in the conversion of organic triglycerides into biodiesel fuels.
• Natural Rubber, Textile & Fermentation Processing:
  • Acts as a colloidal stabilizer and pH-adjusting agent that prevents premature coagulation of natural rubber latex.
  • Serves as an alkaline assistant in textile printing and an acid-neutralizing buffer in industrial microbiological fermentation broths.

Technical Dosing Guidelines, Safe Dissolution & Storage Protocols

• MANDATORY DISSOLUTION PROTOCOL (EXOTHERMIC HAZARD):
  • ALWAYS SLOWLY ADD KOH FLAKES INTO WATER while stirring gently to disperse generated heat. Dissolving solid KOH in water is intensely exothermic (ΔH < 0), releasing thermal energy that can heat the solution near boiling temperatures.
  • NEVER ADD WATER DIRECTLY ONTO DRY KOH FLAKES. Adding water onto concentrated dry flakes triggers localized boiling and steam explosions, splattering boiling concentrated alkaline solution that causes catastrophic chemical burns.
• Equipment Metallurgy: Dissolve and store solutions only in tanks, piping, and agitators fabricated from high-density polyethylene (HDPE), polypropylene (PP), PVC, or stainless steel (SUS 304/SUS 316). Never use aluminum, zinc, tin, or brass vessels, as caustic potash aggressively attacks amphoteric metals to generate flammable hydrogen gas (H₂).
• Warehouse Storage Protocol (UN 1813 Class 8 PG II): Store bags on elevated pallets at least 20 cm above floors in a dry, well-ventilated dedicated warehouse with an intact roof. Protect strictly against water leaks and moisture.
• Chemical Segregation: Store strictly isolated from strong mineral acids (HCl, H₂SO₄, HNO₃), strong oxidizing agents, flammable organics, and reactive metals. Tightly reseal inner PE liners immediately after partial use to prevent atmospheric moisture absorption and carbonate crust formation.

Commercial Supply Policy at THP Chemical

Tan Hung Phu Chemical Co., Ltd. (THP Chemical) is a direct importer and wholesale distributor of Potassium Hydroxide 90% Flake (25kg Bag Korea) supplying fertilizer manufacturers, cosmetic formulators, and industrial facilities nationwide:

• Certified compliant with high-grade Korean technical quality standards, reference standards FCC IV, food additive E525, Halal, and Kosher; active KOH assay guaranteed ≥ 90.0% Min.
• Original packaging: 25.0 Kg Net woven PP bags with heat-sealed PE moisture barrier liners and fresh 24-month shelf life.
• Comprehensive compliance documentation: Batch-specific Certificate of Analysis (COA), 16-section Material Safety Data Sheet (MSDS), and legal VAT invoices provided with each dispatch.
• Extensive inventories maintained at our central Ho Chi Minh City logistics center, supporting rapid palletized dispatch nationwide at competitive wholesale volume pricing.

Frequently Asked Questions (FAQ)

1. Why is Potassium Hydroxide (KOH) preferred over Sodium Hydroxide (NaOH) in liquid soap making?

Saponifying fats with NaOH produces sodium fatty acid salts that naturally harden into solid bar soaps. In contrast, reacting fats with KOH produces potassium fatty acid salts, which possess much higher solubility in water. They remain in a stable, clear liquid or gel state at room temperature, yielding richer, silkier lather and greater skin mildness suitable for premium liquid soaps and body washes.

2. Why is Korean KOH 90% preferred for manufacturing soluble Potassium Humate fertilizers?

Korean KOH features exceptionally low iron (Fe ≤ 3 ppm) and chloride (KCl ≤ 0.015%) levels. When reacting with raw humic acid, it produces a Potassium Humate liquid with complete water solubility, preventing nozzle and emitter clogging in precision irrigation networks. Furthermore, the absence of chlorides protects sensitive crops from root toxicity and leaf scorch.

3. Why does dissolving potassium hydroxide flakes release intense heat?

Dissolving solid KOH in water is a strongly exothermic process of hydration (ΔH < 0). The hydration energy released can rapidly drive water temperatures toward 85°C – 95°C. This is a natural physical reaction, underscoring the mandatory safety rule to slowly add flakes into cold water under continuous mechanical agitation.

4. Does THP Chemical provide batch COAs and VAT invoices for bulk orders?

Yes. THP Chemical supplies batch-specific factory Certificates of Analysis (COA), 16-section MSDS sheets, and legal commercial VAT invoices with every wholesale order to satisfy corporate procurement, environmental auditing, and quality compliance requirements.