Copper(II) Sulfate
Copper(II) Sulfate Pentahydrate (CuSO4·5H2O) Manufacturer & Bulk Supplier
Copper(II) Sulfate Pentahydrate (CuSO4·5H2O, CAS No. 7758-99-8) is a highly soluble, crystalline inorganic chemical widely utilized in agriculture (electro-fertilizer/fungicide), electroplating, mineral flotation, animal feed, and industrial chemical synthesis.
For international distributors and bulk industrial buyers, purchasing Copper Sulfate extends far beyond nominal purity. Success relies on precise copper content, strict control over micro-impurities (Fe, Pb, As, Cd), particle size uniformity, anti-caking protection, and verifiable batch-to-batch consistency.
As an ISO-certified manufacturer, we produce high-purity industrial, agricultural, and electroplating grades of Copper Sulfate Pentahydrate, supporting global trade with robust annual capacity and strict COA traceability.
Manufacturing & Supply Snapshot:
Annual Production Capacity: 35,000+ Metric Tons
Quality Management: ISO 9001:2015 | ISO 14001:2015 | REACH Certified
Testing Instrumentation: ICP-OES Heavy Metal Analysis | AAS | Gravimetric Testing
Particle Options: Large Crystals (3-5 mm), Fine Granules (1-3 mm), Feed Grade Powder (80-100 mesh)
Anti-Caking Technology: Micro-dose food/feed-grade anti-caking treatment available for long-distance ocean freight
Product Grades & Technical Specification
|
Parameter |
Agriculture / Feed Grade |
Industrial / Flotation Grade |
Electroplating Grade (High Purity) |
Test Method / Reference |
|
CuSO₄·5H₂O Assay |
≥ 98.0% |
≥ 98.5% |
≥ 99.0% |
Potassium Iodate Titration |
|
Copper (Cu) Content |
≥ 25.0% |
≥ 25.1% |
≥ 25.2% |
Calculated / Gravimetric |
|
Water-Insoluble Matter |
≤ 0.20% |
≤ 0.10% |
≤ 0.02% (200 ppm) |
Gravimetric Method |
|
Iron (Fe) |
≤ 200 ppm |
≤ 100 ppm |
≤ 15 ppm |
ICP-OES / AAS |
|
Lead (Pb) |
≤ 20 ppm |
≤ 10 ppm |
≤ 5 ppm |
ICP-OES / AAS |
|
Arsenic (As) |
≤ 10 ppm |
≤ 5 ppm |
≤ 2 ppm |
ICP-OES / AAS |
|
Cadmium (Cd) |
≤ 10 ppm |
≤ 5 ppm |
≤ 2 ppm |
ICP-OES / AAS |
|
Chloride (Cl) |
≤ 200 ppm |
≤ 100 ppm |
≤ 10 ppm |
Silver Nitrate Titration |
|
Free Acid (as H₂SO₄) |
≤ 0.20% |
≤ 0.10% |
≤ 0.05% |
Acid-Base Titration |
|
Appearance |
Blue Fine Granules / Powder |
Royal Blue Crystals |
High-Clarity Blue Crystals |
Visual Inspection |
Critical Procurement Factors for Wholesale Buyers
Active Copper Content (Cu %) & Cost Calculation
Pure theoretical CuSO4·5H2O contains 25.45% Cu by mass. Commercial grades typically range between 25.0% and 25.2% Cu.
Buyer Action: Always evaluate Chemical Cost per Active Metric Ton of Cu = (Package Price / Actual Cu Content %) rather than comparing raw bag costs.
Micro-Impurity Control & Process Compatibility
Electroplating & PCB Manufacturing: Requires extremely low Iron (Fe < 15 ppm) and Chloride (Cl < 10 ppm) to prevent bath contamination, rough plating surfaces, and reduced anode efficiency.
Animal Feed & Agrochemicals: Must comply with strict heavy metal limits (As <= 10 ppm, Pb <= 20 ppm, Cd <= 10 ppm) to pass local regulatory inspections.
QA Guarantee: We utilize ICP-OES (Inductively Coupled Plasma Optical Emission Spectroscopy) to verify all trace metals down to parts-per-million (ppm) levels for every batch.
Particle Size Customization & Anti-Caking Performance
Copper Sulfate Pentahydrate is naturally hygroscopic. During long-distance maritime transport across humid tropical regions, standard crystals can form solid cakes inside bags.
Large/Medium Crystals (3-10 mm): Ideal for slow-release applications, reducing dust, and direct dissolution tanks.
Fine Granules (1-3 mm / 20-60 mesh): Best for rapid dissolution in water treatment and mining flotation.
Micro Powder (80-120 mesh): Specially screened for animal feed premixes and agricultural sprays.
Anti-Caking Treatment: We offer an specialized food/feed-grade anti-caking agent coating that preserves free-flowing characteristics during extended sea transit.
Industry-Specific Applications
Agriculture, Animal Feed & Agrochemicals
Functions as a vital micronutrient supplement in animal feed mixes to prevent copper deficiency, as well as a raw material for Bordeaux mixture, fungicides, and algaecides.
Compliance Note: Our Feed Grade fully meets international heavy metal hygiene standards for trace elements.
Mining & Mineral Flotation
Acts as a highly effective activator in the froth flotation of sulfide ores, particularly for activating Sphalerite (ZnS), Pyrite (FeS2), and Pyrrhotite during copper-zinc and lead-zinc separation.
Process Advantage: Fast dissolution rate and stable Cu2+ release optimize reagent consumption in high-volume flotation circuits.
Electroplating & Metal Finishing
Provides the primary source of copper ions in acid copper plating baths for printed circuit boards (PCB), rotogravure cylinders, and decorative plastic/hardware plating.
Key Feature: Ultra-low water-insoluble matter (<= 0.02%) prevents anode bag clogging and bath filtration downtime.
Water Treatment & Industrial Synthesis
Used as an algaecide in municipal reservoirs, industrial cooling towers, and lakes, as well as a starting precursor for producing copper catalysts, copper oxide, and wood preservatives.
Factory Production & Quality Assurance Control
Batch consistency is engineered into our manufacturing process, not just checked in a final bag.
Raw Copper Material Sourcing & Purity Verification
|
Controlled Acid Dissolution & Oxidation Reaction
|
Multi-Stage Filtration (Removal of Water-Insoluble Solids)
|
Concentration & Precision Cooling Crystallization
|
Centrifugal Dewatering & Temperature-Controlled Drying
|
Vibratory Screening & Mesh Size Classification
|
ICP-OES & Titration Laboratory QC Approval
|
Automated Packaging with PE Moisture Barrier & Anti-Caking Option
|
Issued COA & Container Loading Inspection
Quality Traceability Sequence:
Each packaging bag is stamped with a unique Production Lot Number that directly links to:
Raw material batch certificate
In-process crystallization parameters
Laboratory test results recorded on the Certificate of Analysis (COA)
Container loading digital inspection photos
Packaging, Storage & Export Logistics
25 kg / 50 kg Bags: Woven polypropylene (PP) outer bags with heavy-duty inner polyethylene (PE) sealed liner.
1,000 kg FIBC Jumbo Bags: Bottom-spout or flat-bottom bulk bags equipped with UV-stabilized fabric and inner moisture barrier.
Container Loading Quantities:
25 kg bags on pallets: 20-22 Metric Tons per 20ft FCL.
25 kg bags loose loaded: Up to 25 Metric Tons per 20ft FCL (depending on port weight limits).
1000 kg Jumbo Bags: 20 Metric Tons per 20ft FCL.
Storage Conditions: Store in a cool, dry, well-ventilated warehouse. Keep packaging tightly sealed away from incompatible substances like strong alkalis and reducing agents.
Technical Documentation Support for Import Clearance
Every commercial shipment is backed by a complete compliance documentation package:
Certificate of Analysis (COA) matching the exact container lot
Technical Data Sheet (TDS)
GHS-Compliant Safety Data Sheet (SDS) - Available in English, Spanish, French, and Portuguese
Certificate of Origin (CO, Form E, Form A, Form RCEP)
Third-Party Inspection Certificates (SGS / Intertek) available upon buyer request
If you are sourcing Copper(II) Sulfate Pentahydrate for chemical distribution, agricultural manufacturing, mining flotation, or electroplating, submit your target parameters below:
Required Product Grade (Agricultural, Flotation, Electroplating, or Custom)
Target CuSO4·5H2O Assay / Copper Content %
Particle Size Preference (Large Crystal, Granular, 80-Mesh Powder)
Anti-Caking Treatment Required? (Yes / No)
Total Order Quantity & Monthly/Annual Demand (Metric Tons)
Preferred Packaging (25kg Bags, 1000kg FIBC Totes, Palletized)
Destination Port & Required Trade Terms (FOB, CFR, CIF)
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