Water-soluble / specialty fertilizers
Copper Sulphate Pentahydrate — Soluble Cu for Fertigation & Foliar
FOB Black Sea / MENA · CFR/CIF worldwide on request
Key parameters — Copper Sulphate Pentahydrate
Full specification — Copper Sulphate Pentahydrate
| Copper (Cu) | 25.0% min |
| CuSO4·5H2O | 98.0% min |
| Water insoluble | 0.05% max |
| Iron (Fe) | 50 ppm max |
| Lead (Pb) | 10 ppm max |
| Arsenic (As) | 5 ppm max |
| Cadmium (Cd) | 5 ppm max |
| pH (1% solution) | 3.5–4.5 |
| Appearance | Blue crystalline pentahydrate |
| Form | Crystals or micronized powder, agricultural grade |
| HS code | 2833.25 |
- FOB
- CFR
- CIF
- Fertigation
- Foliar
- Micronutrient
Product overview — Copper Sulphate Pentahydrate
Copper sulphate pentahydrate (CuSO4·5H2O) is the most widely traded inorganic copper source for crop nutrition, delivering 25% Cu in a fully water-soluble crystalline form. It corrects copper deficiency in cereals, citrus, avocado and vineyard soils where organic matter binds Cu and root uptake falls below critical thresholds. The pentahydrate dissolves rapidly in fertigation stock tanks and foliar spray batches, making it the standard straight micronutrient for precision irrigation programmes across the Gulf, North Africa and South Asia.
Beyond nutrition, agricultural copper sulphate serves as a contact fungicide and algicide in rice paddies, orchard dormant sprays and greenhouse foot-bath programmes. Its dual role — micronutrient and crop-protection agent — makes it a staple in distributor portfolios serving mixed farming regions where separate fungicide procurement adds cost and logistics complexity.
Typical buyers include agrochemical distributors building micronutrient product lines, greenhouse cooperatives operating A/B fertigation systems, and compound blenders adding Cu fractions to water-soluble NPK + ME formulations. Production origins include Black Sea chemical complexes and MENA toll-blending facilities with agricultural-grade purification. HS code 2833.25.
Full product details
Loading ports & logistics — Copper Sulphate Pentahydrate
Contract MOQ 100 MT ships in hygroscopic-sensitive 25 kg bags or 1,000 kg big bags in 20 ft containers (~24 MT payload per unit). Programmes above 500 MT can load breakbulk from Black Sea and MENA chemical terminals with desiccant-lined container stuffing and covered warehouse storage at load port.
CFR/CIF quotations include ocean freight to Mumbai, Karachi, Jeddah, Casablanca and Ho Chi Minh City. Lead time is 10–22 days from contract execution and payment confirmation, depending on bagging line availability and berth slot.
Packaging & documentation — Copper Sulphate Pentahydrate
Standard export packaging: 25 kg PP woven bags with PE inner liner, or 1,000 kg big bags for bulk-handling terminals. Each lot ships with mill certificate of analysis (COA), safety data sheet (SDS), commercial invoice, packing list and bill of lading. Third-party inspection (SGS, Bureau Veritas) at load port can be arranged per contract terms. Specify crystal or micronized powder form at enquiry — powder dissolves faster in fertigation tanks but requires anti-caking agent confirmation.
FAQ — Copper Sulphate Pentahydrate
When should copper sulphate replace chelated copper in fertigation?
Use copper sulphate in acidic to neutral irrigation water (pH below 7.0) where the Cu²⁺ ion remains soluble and passes through drip filters without precipitation. Switch to EDTA- or DTPA-chelated copper when source water exceeds pH 7.5 or bicarbonate levels above 150 mg/L CaCO3 — free copper precipitates as hydroxide in alkaline conditions and can stain emitters.
What application rates prevent copper toxicity in perennial crops?
Fertigation programmes typically target 0.05–0.15 mg/L Cu in the working solution, applied over multiple cycles rather than a single heavy dose. Soil-applied copper sulphate at 2–5 kg Cu/ha per season suits deficiency correction on sandy, organic-poor soils. Always confirm baseline soil Cu by laboratory analysis — cumulative applications above 20 kg Cu/ha over three seasons risk phytotoxicity in stone fruit and grapevine.
How does agricultural grade differ from industrial copper sulphate for import?
Agricultural export grade limits heavy-metal impurities: iron at 50 ppm max, lead at 10 ppm max, and water-insoluble fraction below 0.05%. Industrial or electroplating grades carry higher Fe and Pb content unsuitable for crop use and may fail phytosanitary or food-chain residue audits. Request the mill COA confirming agricultural specification before contract signing.
Related products — Copper Sulphate Pentahydrate
- NPK + Micronutrients — compound grades with Zn, B, S and optional Cu enrichment
- Water-soluble NPK — fertigation base formulas compatible with Cu tank additions
- Calcium Nitrate — soluble Ca + N for greenhouse drip programmes
