Description
Reviews
| Brand | - |
| Category | Sports, Yoga, Fitness & Fan Gear / Pool Equipment |
| Origin | - |
| Chemical Name | Copper(II) Sulfate Pentahydrate |
| Common Name | Blue Vitriol |
| Appearance | Bright Blue Crystalline Solid |
| Purity Grade | 98% Minimum |
| Primary Application | Fungicide and Algaecide |
| Suitable Crops | Rice, Citrus, Grapes, Chili Peppers, Fruit Trees |
| Formulation Type | Crystals for Bordeaux Mixture Preparation |
| Solubility | Highly Soluble in Water |
| Package Weight | 1 kg |
| Storage Condition | Keep in a cool, dry place away from moisture |
Anonymous
Mar 24, 2026
Rating: 3/5
Works but handle with care
It does the job against fungal infections on my chili peppers, but you really need to wear gloves and a mask. Strong stuff.
Anonymous
Mar 13, 2026
Rating: 4/5
Reliable product
Used it on my fruit trees to prevent leaf spot. The blue color is vibrant indicating good quality. Would buy again.
Anonymous
Mar 12, 2026
Rating: 5/5
Standard agricultural grade
Exactly what I needed for my rice paddies. The purity is consistent with what we use on the farm. Great value for the price.
Anonymous
Mar 05, 2026
Rating: 5/5
Perfect for homemade fungicide
I've been making my own Bordeaux mixture for years. These crystals are high quality and mix perfectly with lime. Highly recommended.
Anonymous
Mar 05, 2026
Rating: 4/5
Good quality, fast shipping
The product arrived well-sealed. I applied it to my citrus trees as directed. It seems effective, though I need to wait a bit longer for full results.
Anonymous
Mar 02, 2026
Rating: 5/5
Excellent for my grape vines
I used this to make Bordeaux mixture for my grape vines this season. The crystals dissolved easily and the results were fantastic. No more mildew issues!
Q: Can this be used directly in a swimming pool?
A: While copper sulfate can act as an algaecide, this specific product is formulated and labeled for agricultural use on crops. For pool maintenance, please purchase products specifically certified for pool equipment and water treatment.
Q: Does this product come with measuring instructions?
A: The package includes general usage guidelines. However, dosage varies significantly by crop type and disease severity. We recommend consulting local agricultural extension services for precise mixing ratios.
Q: Is this safe to use on edible crops like chili peppers?
A: Yes, it is widely used on edible crops including chili peppers, grapes, and citrus. However, strictly adhere to the pre-harvest interval guidelines listed on the label to ensure safety.
Q: How do I prepare the Bordeaux mixture using these crystals?
A: Dissolve the copper sulfate crystals in water in one container and slaked lime in another. Then, slowly pour the copper solution into the lime solution while stirring constantly. Never reverse the order.
Q: What is the shelf life of these crystals?
A: If stored in a tightly sealed container in a cool, dry place away from humidity, the crystals can remain stable and effective for several years.
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