Vojin New Materials | Industrial & Agricultural Grade

China Potassium Nitrate 500g Manufacturer & Factories

Global supply chain leaders in ultra-pure Potassium Nitrate (KNO₃). Offering custom 500g barrier-sealed laboratory packaging and high-volume industrial shipments certified by REACH, ISO, and SGS.

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Hot Products & Industry Segments

Nitrates Series

Nitrates Series

High purity potassium nitrate, sodium nitrate, and calcium nitrate products.

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Fertilizer Series

Fertilizer Series

100% water-soluble fertilizers with optimal macro- and micro-nutrient profiles.

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By-Products

By-Products

Complementary industrial-grade raw chemical salts and solutions.

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TECHNICAL WHITEPAPER

High-Purity Potassium Nitrate (KNO₃) Chemical & Synthesis Profiling

Potassium Nitrate (KNO₃) is a multi-functional ionic salt with profound applications spanning advanced agriculture, molten salt thermal storage, metal metallurgy, and precision display glass fabrication. Under the strict criteria defined by international chemical standards, the production of potassium nitrate requires exceptional process control to minimize impurities such as sodium ions (Na⁺), chloride ions (Cl⁻), and moisture content.

At Shanxi Vojin New Materials Co., Ltd., we utilize a modern double-decomposition synthesis route (metathesis reaction) involving high-quality potassium chloride (KCl) and ammonium nitrate / nitric acid. Our state-of-the-art crystallization process guarantees that the industrial-grade material consistently tests at ≥ 99.7% purity. In contrast, standard agricultural-grade variants maintain a minimum purity of 99.4%, prioritizing immediate plant availability of Nitrogen (N: 13.5% min) and Potassium (K₂O: 46% min).

Why the 500g Packaging Spec is Crucial: Global laboratories, research institutes, and localized micro-dosing users require smaller, highly secure pack formats. The 500g Potassium Nitrate specification serves as the benchmark for laboratory testing, research development trials, and ultra-precise dosing processes where bulk containers are susceptible to moisture ingress, degradation, and contamination.

Technical Specification Table: Industrial vs. Agricultural Grades

Chemical Parameters Industrial Grade (Ultra-Pure) Agricultural / Fertilizer Grade Analytical Reagent (AR) Grade (500g)
Assay (KNO₃ Dry Basis) ≥ 99.8% ≥ 99.4% ≥ 99.9%
Moisture (H₂O) ≤ 0.10% ≤ 0.30% ≤ 0.05%
Chloride (Cl⁻) ≤ 0.01% - 0.03% ≤ 0.15% ≤ 0.002%
Sulfate (SO₄²⁻) ≤ 0.005% ≤ 0.05% ≤ 0.003%
Insoluble Matter in Water ≤ 0.01% ≤ 0.05% ≤ 0.005%
Sodium (Na⁺) ≤ 0.05% N/A ≤ 0.01%

To ensure stability in our custom 500g containers, our products are treated with specialized anti-caking agents that do not interfere with the chemical reactions in research applications. For high-end electronic display glass manufacturers, we supply potassium nitrate with near-zero sodium residues to facilitate clean chemical tempering baths.

Applications of High-Purity Potassium Nitrate (KNO₃)

From renewable energy storage to high-yield micro-dosing systems, our tailored Potassium Nitrate solutions meet strict global standardizations.

Thermal Energy Storage Systems

Potassium nitrate functions as an optimal component in heat-transfer molten salt formulations (typically 60% NaNO₃ / 40% KNO₃) utilized in Concentrated Solar Power (CSP) systems. High thermodynamic stability at temperatures exceeding 560°C guarantees safe and continuous energy conservation.

Display Devices Manufacturing

For chemical strengthening of high-performance glassware (mobile displays, automotive glass), pure potassium nitrate molten baths facilitate ion exchange where potassium ions replace smaller sodium ions on the glass surface, building extreme mechanical strength.

Agricultural Technology & Hydroponics

In vertical farming and precision hydroponics, potassium nitrate provides highly soluble macronutrients essential for flowering and fruiting cycles. Being completely chloride-free, it prevents root salinity shock in sensitive crops like tobacco, tomatoes, and berries.

REGULATORY & COMPLIANCE

Localization Support, Safety Data Sheets (SDS), & Hazmat Compliance

Potassium Nitrate is classified under the United Nations Recommendations on the Transport of Dangerous Goods as a Class 5.1 Oxidizing Agent (UN Number 1486). Because of this classification, B2B procurement processes involve extensive localized safety checks, documentation, and specific custom clearances in destination ports.

At Vojin New Materials, we maintain a dedicated in-house compliance department that assists global procurers with local registration requirements. We provide localized Safety Data Sheets (SDS) matching country-specific standards (e.g., EU REACH, US OSHA GHS, Korea K-REACH). Our custom packaging line utilizes heavy-duty, multi-layered Polyethylene (PE) inner bags inside tough laminated Polypropylene (PP) outer bags, protecting the 500g and bulk packs from humidity, damage, and unauthorized manipulation.

Global Certifications Secured:
  • EU REACH Registration (for full compliance and smooth import clearances within the EEA)
  • ISO 9001:2015 Quality Management System Certification
  • SGS / Bureau Veritas pre-shipment validation certificates on request
  • GHS Compliant Hazard Labeling and IMDG compliant packaging

Through our network of localized storage facilities and established relationships with prime shipping lines, we guarantee optimized sea freight pathways, container consolidation services, and door-to-port compliance assistance. This significantly mitigates risks of customs holding or fines associated with hazardous chemical imports.

WHO WE ARE

Shanxi Vojin New Materials Co., Ltd.

Driven since 2000, we have been committed to the entrepreneurial spirit and passion for innovation. Our team takes pride in delivering dependable products and services with a quality distinction in thermal energy storage and water-soluble fertilizer industries globally.

Located in Shanxi, the core industrial basin of China's coal and chemical manufacturing, we benefit from unparalleled integration of raw materials, clean energy, and rapid logistics access to leading shipping ports.

Vojin Manufacturing Facility Vojin Quality Control Lab

Manufacturing Capacity & Scale

Our facility spans approximately 1,000 acres, boasting modern, computerized crystallization tanks, fluid-bed drying configurations, and fully automated packaging machinery that eliminates weight variance.

15+
Years Experience
600K
Annual Tons Capacity
50+
Product Breakdown
40+
Export Countries

Our Competitive Advantages:

Export Mastery: Seamless document flows, container stabilization, and custom clearing networks globally.

Consistent Scale: Over 600,000 Metric Tons of annual output across our primary molten salts and nitrates portfolio.

Quick Response: 24/7 online technical support with immediate responses to analytical testing inquiries.

INDUSTRY TRENDS & FUTURES

The Strategic Role of China in the Global Potassium Nitrate Supply Chain

The global demand for potassium nitrate has evolved dramatically. Historically viewed predominantly as a fertilizer component, the clean energy transition has transformed KNO₃ into a vital decarbonization material. The rise of solar molten salt technology demands ultra-pure salts at scales previously unseen, forcing manufacturers to modernize operations.

China's chemical factories, particularly in regions like Shanxi, represent the peak of production efficiency and environmental optimization. By utilizing local ammonium nitrate and raw potassium chloride sourced from state-of-the-art domestic and international extraction, Chinese factories mitigate international transport volatility. This close-loop supply chain keeps prices stable compared to Western manufacturers.

Key Trends Driving the Nitrate Markets:

  1. Purity Demands in Electronics: Display screen glass formulation requires raw materials with extremely low trace metal content. This has driven the production of specialized electronic-grade Potassium Nitrate.
  2. Greenhouse Crop Nutrition: Traditional soils are increasingly replaced by coco-coir or rockwool hydroponics. These closed systems require 100% water-soluble fertilizers with zero residues.
  3. Decarbonization Regulations: CSP energy technologies and thermal batteries are expanding fast under European and US green tax credits. This ensures long-term demand for industrial-scale solar-grade nitrate mixtures.

Vojin New Materials continues to invest in advanced recrystallization processes, enabling us to offer high-quality potassium nitrate, whether in standard 25kg bags or specialized 500g laboratory sizes. Our advanced packaging protects our products from humidity during long sea transits.

Frequently Asked Questions

Find expert answers on logistics, hazardous chemical storage, quality certifications, and custom chemical specifications.

What is the standard chemical purity of your Potassium Nitrate?
We manufacture multiple grades. Our Industrial/Technical Grade is guaranteed ≥ 99.8% pure. The Agricultural Grade is ≥ 99.4% pure. For lab testing, our Analytical Reagent (AR) Grade in 500g packaging is refined to ≥ 99.9% purity.
How is Potassium Nitrate packaged to prevent moisture and caking?
Potassium Nitrate is hygroscopic. Our 500g packs use laminated aluminum foil bags with a strong moisture-barrier inner layer, vacuum-sealed or nitrogen-purged on request. Our bulk bags (25kg or 1000kg) utilize multi-layer PE/PP materials designed for rough sea voyages.
Do you provide EU REACH certification for imports?
Yes, Shanxi Vojin New Materials has successfully secured EU REACH registration. This registration allows B2B buyers in European markets to import our nitrate salts smoothly without registration penalties.
Is Potassium Nitrate classified as dangerous goods (DG)?
Yes, Potassium Nitrate is classified as Class 5.1 Oxidizing Substances under UN number 1486. We fully comply with maritime DG requirements, including packaging tests, container separation rules, and GHS-hazard declarations.
What is the minimum order quantity (MOQ) for 500g packs vs bulk?
For standard 500g packages, we accommodate smaller trial orders for laboratories. For bulk industrial grades, our standard MOQ starts at 1 FCL (Full Container Load) which is approximately 20-25 Metric Tons depending on the target port guidelines.

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