Our Prilled Potassium Hydroxide (CAS: 1310-58-3) is a high-purity industrial inorganic alkali product, professionally refined and manufactured for high-standard industrial scenarios such as precision electroplating and non-ferrous metallurgy. Adopting advanced high-temperature closed spray prilling technology, the product abandons traditional flaky and block molding processes, realizing standardized granular molding with superior comprehensive physical and chemical properties.
1. Superior Physical Properties & User-Friendly Performance
Thanks to the precise spray prilling craft, the finished product presents uniform and regular spherical granules with consistent particle size. Compared with conventional potassium hydroxide products, it features extremely low dust generation during feeding, transportation and batching processes, effectively reducing material waste and workshop dust pollution, and improving the operating environment. Meanwhile, the special porous granular structure greatly optimizes water solubility, enabling rapid and complete dissolution in water without residue or caking during dissolving, which significantly improves production batching efficiency and ensures uniform solution concentration.
| Test Item | Electroplating Grade Granule | Metallurgy Flotation Grade Granule |
|---|---|---|
| KOH Assay | ≥90.0% | ≥88.5% |
| K₂CO₃ Carbonate | ≤0.8% | ≤1.2% |
| Chloride(Cl) | ≤0.02% | ≤0.05% |
| Fe Heavy Metal | ≤15ppm | ≤30ppm |
| Granular Size | 0.8~1.6mm | 1.0~2.0mm |
| Potassium hydroxide Chemical Properties |
| Melting point | 361 °C (lit.) |
| Boiling point | 1320°C |
| density | 1.450 g/mL at 20 °C |
| vapor pressure | 1 mm Hg ( 719 °C) |
| refractive index | n |
| Fp | 52 °F |
| storage temp. | Store at +5°C to +30°C. |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| form | powder |
| Specific Gravity | 1.09 |
| color | white |
| Odor | Odorless |
| PH | 10.98(1 mM solution);11.95(10 mM solution);12.88(100 mM solution); |
| explosive limit | 3.5-15.0%(V) (ethanol) |
| Water Solubility | soluble |
| Sensitive | Air Sensitive & Hygroscopic |
| Merck | 14,7640 |
| Exposure limits | Ceiling in air 2 mg/m3 (ACGIH). |
| Dielectric constant | 3.3（Ambient） |
| Stability: | Stable, but very hygroscopic. Dissolves exothermically in water. Incompatible with most metals, strong acids, acid chlorides, organic materials, zinc, aluminium, nitroalkanes, nitrobenzene, chlorine dioxide. Reacts vigorously with a wide variety of other materials. Readily absorbs water and carbon dioxide from the air. |
| Cosmetics Ingredients Functions | BUFFERING |
| InChI | 1S/K.H2O/h;1H2/q+1;/p-1 |
| InChIKey | KWYUFKZDYYNOTN-UHFFFAOYSA-M |
| SMILES | [OH-].[K+] |
| LogP | -1.380 (est) |
| CAS DataBase Reference | 1310-58-3(CAS DataBase Reference) |
| NIST Chemistry Reference | Potassium hydroxide(1310-58-3) |
| EPA Substance Registry System | Potassium hydroxide (1310-58-3) |
| Safety Information |
| Hazard Codes | C,F,T,Xi |
| Risk Statements | 34-35-22-11-39/23/24/25-23/24/25-36/38-36/37-67-52/53 |
| Safety Statements | 7-16-36/37-45-36/37/39-26-61 |
| RIDADR | UN 1813 8/PG II (POTASSIUM HYDROXIDE, SOLID) |
| RIDADR | UN 1814 8/PG II/III (POTASSIUM HYDROXIDE SOLUTION) |
| OEL | Ceiling: 2 mg/m3 |
| WGK Germany | 1 |
| RTECS | TT2100000 |
| F | 3 |
| Autoignition Temperature | 425 °C (ethanol) |
| TSCA | TSCA listed |
| HazardClass | 8 |
| PackingGroup | II |
| HS Code | 28259090 |
| Storage Class | 8A - Combustible corrosive hazardous materials |
| Hazard Classifications | Acute Tox. 4 Oral Eye Dam. 1 Met. Corr. 1 Skin Corr. 1A |
| Hazardous Substances Data | 1310-58-3(Hazardous Substances Data) |
| Toxicity | LD50 orally in rats: 1.23 g/kg (Smyth) |
2. Strict Purity Control & Industrial Defect Avoidance
The product implements strict raw material screening and finished product impurity detection standards, with precise control of trace impurities such as chloride and iron ions. Excess chloride and iron impurities are the core causes of pinholes, pitting, surface black spots and uneven coating in electroplating processing. Our low-impurity formula effectively eliminates these common production defects, ensuring smooth and flat plating layers and stable plating quality. It fully meets the strict raw material quality thresholds for precision electroplating, metal surface treatment and non-ferrous metal smelting, and can perfectly match high-standard industrial production lines.
3. Excellent Storage & Transportation Stability
With a compact and stable spherical granular structure, this prilled potassium hydroxide has strong anti-compression and anti-caking capabilities. It can maintain complete particle morphology and loose state for a long time under conventional warehouse storage and normal temperature and humidity environment, effectively avoiding hard agglomeration, deliquescence and deterioration caused by long-term stacking. The stable physical state greatly reduces material loss during storage and transportation, lowers the risk of unqualified materials affecting production, and guarantees stable quality from warehouse to production application.
4. Professional Industry Adaptability
Tailored for high-demand industrial scenarios, this granular KOH is specially refined for precision electroplating and non-ferrous metallurgy industries. It can also be widely used in chemical synthesis, alkaline solution preparation, industrial cleaning, papermaking and textile processing and other fields. With stable chemical properties, high alkali content and reliable batch consistency, it has become a preferred high-quality alkaline raw material for medium and high-end industrial production.
5. Professional Application Scenarios
5.1 Precision Electroplating Industry
As a core alkaline raw material for electroplating, the low chloride and low iron impurity characteristics of prilled potassium hydroxide completely adapt to nickel plating, copper plating, zinc plating and other precision plating processes. It effectively avoids coating pinholes, black spots and peeling problems, improves the uniformity and adhesion of metal coating, and ensures high-precision surface treatment effect of hardware and electronic accessories.
5.2 Non-Ferrous Metallurgy Industry
It is widely used in the smelting, purification and surface oxidation treatment of aluminum, copper, zinc and other non-ferrous metals. High-purity KOH can effectively remove metal surface impurities and oxide layers, stabilize metallurgical reaction parameters, improve metal finished product purity and yield, and meet the high-standard raw material requirements of refined metallurgy production lines.
5.3 Chemical & Daily Chemical Industry
Used for the preparation of various potassium salt chemical products, alkaline reaction solvents and catalyst auxiliaries. In the daily chemical field, it is applicable to the production of soap, detergent and emulsifier. Its rapid dissolution and high purity ensure stable chemical reaction efficiency and qualified finished product quality.
5.4 Other Industrial Fields
It can also be used for industrial sewage alkaline adjustment, textile desizing and bleaching, papermaking pulping and alkali treatment, as well as equipment surface alkaline cleaning. It features wide applicability and stable chemical performance, meeting the diversified production needs of various industries.
6. Standard Packaging & Safe Transportation
6.1 Product Packaging Specification
The finished product adopts 25kg high-strength woven bag with inner plastic lining, which is moisture-proof, leak-proof and corrosion-resistant. The packaging is firm and wear-resistant, effectively preventing particle leakage and moisture absorption during stacking and handling. Customized pallet packaging is supported for trial orders and small-batch shipments to facilitate loading and unloading.
6.2 Transportation Advantages
We have long-term cooperative logistics teams and mature export transportation schemes. Full-container shipments (25MT/FCL) adopt standardized container loading, with neat stacking and stable fixation, which greatly reduces product extrusion and damage during transportation. All products comply with international chemical transportation standards, with complete shipping documents to ensure smooth customs clearance.
7. After-Sales Service & Cooperation Guarantee
7.1 Quality Batch Consistency Guarantee
All batches of prilled potassium hydroxide undergo strict factory inspection, with complete quality inspection reports. We maintain stable product indicators for long-term orders to avoid quality fluctuations affecting customers' continuous production. Any quality problem caused by our product itself will be solved with free replacement and compensation in accordance with the contract.
7.2 Professional Technical Support
We provide one-stop technical support for industrial customers. Professional chemical engineers can provide customers with product usage guidance, solution ratio suggestions, storage and use precautions, and solve on-site application problems in time to help customers optimize production efficiency.
7.3 Flexible Order Mechanism
While supporting full-container bulk orders, we accept small-batch pallet trial orders for new customers, helping customers verify product quality and adapt to production lines first. We support long-term customized fixed-point supply to ensure stable delivery cycle for customer factories.
8. Cooperative Customer Cases
Our high-purity prilled potassium hydroxide has established long-term stable cooperative relations with many domestic and foreign manufacturers. It has been steadily supplied to precision electroplating factories, non-ferrous metal smelting plants, fine chemical factories and daily chemical production enterprises in Southeast Asia, the Middle East, Europe and other regions. With stable product quality and reliable service, it has helped customers reduce production defect rate and improve product qualification rate, winning consistent recognition and long-term repeat orders from global customers.
9. FAQ (Frequently Asked Questions)
9.1 Will the product deliquesce and agglomerate easily?
Our spherical prilled KOH has stable particle structure and low dust performance. Under normal temperature and dry warehouse storage conditions, it is not easy to absorb moisture and agglomerate. It is recommended to seal and store away from moisture and acid substances to extend the storage cycle.
9.2 What are the advantages of prilled type compared with flaky KOH?
Prilled granular potassium hydroxide has uniform particle size, low dust, no flying powder during feeding, cleaner operating environment, faster dissolution speed and more uniform solution concentration. It avoids the problem of uneven dissolution and easy agglomeration of flaky products, and is more suitable for automated industrial batching production lines.
9.3 Can you provide customized inspection reports?
Yes. We can provide formal factory COA quality inspection report, MSDS safety data sheet, customs declaration documents and other certification materials to meet customers' import customs clearance and factory incoming inspection standards.
9.4 What is the delivery cycle?
For conventional bulk orders, we can complete loading and delivery within 3-7 working days after receiving the deposit. For long-term cooperative customers, we support inventory reservation to ensure timely delivery.
