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CuSO₄·5H₂O | Application-Specified | Manufactured in India | Supplied worldwide

Don't buy copper sulphate.
Buy the copper sulphate your process needs.

Agriculture needs a fungicide that works in the field. Mining needs a flotation reagent that performs in the cell. Feed needs a bioavailable trace mineral. Same compound. Different job. We manufacture to the job, not the label.

What are you using copper sulphate for? ↓ SELECT YOUR INDUSTRY BELOW — WE'LL SHOW YOU THE RELEVANT SPEC
Eight Applications. One Molecule. Different Specifications.

Start with what you're building, treating, or protecting.

Every card below leads to the technical detail that matters for that use — particle size, purity threshold, dissolution behaviour, documentation. No generic product page.

Not Sure Which Grade You Need?

Send us your current COA.

We'll compare your existing specification with our available grades and recommend the closest match — no guesswork, no generic quote.

Compare My Specification
Why "Copper Sulphate" Isn't a Complete Specification

The same CAS number carries different requirement chains.

The chemistry is identical. What the application needs from that chemistry is not. Get the requirement chain wrong, and you get a technically-correct product that fails in the field, the cell, or the ration.

Mining

Particle size → dissolution → flotation consistency

Agriculture

Particle size → dispersion → formulation performance

Feed

Purity → heavy metals → premix consistency

Electroplating

Purity → impurity control → bath stability

From Copper To Crystal

Manufactured, not just traded.

We control the process from raw copper input to the graded, packed crystal — which is the only way to control the specification on the other end.

01
Raw Copper Input
02
Acid Reaction
03
Crystallisation
04
Separation
05
Drying
06
Grading
07
QC Testing
08
Packaging

Every batch is graded to particle size and tested before packing — so the crystal size on the certificate of analysis is the crystal size in the bag. See the full process

Particle Size Is The Product

Five grades, graded to what dissolves — or doesn't — where you need it.

Crystal size determines dissolution rate, dust generation, and blending behaviour. We grade to it deliberately, not incidentally.

Wind Swept Powder

< 0.4 mm

Fast dissolution. Feed premix, spray formulations, lab use.

Fine Crystal

0.4 – 1 mm

Balanced dissolution and handling. Agriculture, water treatment.

Standard Crystal

1 – 2 mm

General industrial grade. Flotation, chemical feedstock.

Granular Crystal

2 – 5 mm

Slower dissolution and easier bulk handling.

Lump / Large

5 mm +

Extended release and low dust. Bulk industrial dosing.

Tell Us The Application, Not Just The Chemical

We don't sell copper sulphate off a shelf. We specify it to your process.

Send us your application, target dissolution behaviour, and volume — we'll come back with a grade recommendation and a sample, not a generic quote.

"Do you have copper sulphate in stock?"
"What does your process need it to do?"
Get Started

Request a technical sample

Tell us your industry, target particle size, and required documentation (COA, SDS, MSDS). We'll respond with a specification match within one business day.

Request a Sample
A Manufacturer, Not A Marketplace

One facility. Four decades. A name behind every batch.

We're not a trading desk sourcing from whoever's cheapest this week. Aurteq Pvt Ltd manufactures from a single facility we've operated and expanded since 1986.

Manufacturing Since
1986
Copper derivatives → copper sulphate from 2015
Production Capacity
3,000 MT / year
Expanded from 800 MT/year in 2019
Export Markets
USA, Vietnam
Expanding into Kenya, Malaysia, Mexico, Indonesia, Europe & Australia
Company Registration
CIN U24201WB2026PTC288010
Aurteq Pvt Ltd
Factory
Howrah, West Bengal
Plot B20, Munshirhat Industrial Complex, Narendrapur
Registered Office
Kolkata, West Bengal
18/N Block A, New Alipore, Kolkata 700053
1986
Founded as Tirupati Insulating Works, manufacturing copper derivatives.
2015
Began copper sulphate production.
2019
Expanded capacity to 800 MT annually.
2026
Expanded capacity to 3,000 MT annually; operations transition to Aurteq Pvt Ltd.
Quality Isn't A Claim. It's A Specification.

Every batch is tested against the numbers below before it ships.

This is a representative certificate of analysis for our standard industrial grade. Grade-specific specs are issued per order.

Certificate of Analysis — CuSO₄·5H₂O, Standard Crystal● Within Spec
Copper Sulphate (CuSO₄·5H₂O)
≥ 98.5%
Copper (Cu) Content
25.0–25.6%
Moisture / Free Water
≤ 0.3%
Water Insolubles
≤ 0.05%
Iron (Fe) as Impurity
≤ 0.04%
Lead (Pb) as Impurity
≤ 0.005%
Particle Size Distribution
Per grade spec

Batch-To-Batch Cu% Consistency — Last 8 Shipments

25.1%
25.2%
25.0%
25.1%
25.3%
25.0%
25.2%
25.1%
B-118B-119B-120B-121B-122B-123B-124B-125
✓ Independently Verified — SGS India Pvt. Ltd.

Real batch, real lab, real numbers — not a marketing figure. See the full SGS report

Manufactured In India. Shipped Wherever You Need It.

Export Documentation

Documentation is prepared according to destination, product and customer requirements.

🏭 India Manufacturing 📦 Port-Ready Packing 🌍 Global Delivery
Certificate of Analysis (COA) Safety Data Sheet (SDS/MSDS) Fumigation Certificate Certificate of Origin Packing List & Bill of Lading Phytosanitary Certificate (Agro Grade)

Find the specification built for your industry.