Description

Bordeaux Mixture is a classic inorganic fungicide and bactericide, primarily composed of copper sulfate and calcium hydroxide. Its primary value lies in providing broad-spectrum, protective control against a wide range of fungal and bacterial diseases in various crops. This product is essential for agricultural professionals, vineyard managers, and horticulturists seeking a time-tested solution for plant disease management. Its multi-site mode of action also makes it a valuable tool in resistance management strategies.

Application

• Agricultural Fungicide: Primary application for controlling downy mildew, powdery mildew, leaf spots, and blights on a wide variety of crops including grapes, potatoes, tomatoes, and fruit trees.
• Viticulture Protection: Specifically critical in vineyards for the prevention and treatment of downy mildew (Plasmopara viticola) on grapevines.
• Orchard and Horticulture: Used on pome and stone fruits, citrus, and ornamental plants to manage bacterial and fungal pathogens.
• Seed Treatment: Employed as a seed dressing to protect against soil-borne pathogens during germination and early seedling growth.
• Post-Harvest Treatment: Applied to certain fruits and storage facilities to reduce post-harvest decay.
• Organic and Conventional Farming: Approved for use in many organic farming systems (subject to local certification body rules) as well as conventional agriculture.

Basic Information

Item	Detail
Product Name	Bordeaux Mixture
CAS No.	8011-63-0
Molecular Formula	CuSO₄·xCa(OH)₂·yH₂O (Variable composition mixture)
Molecular Weight	N/A (Mixture)
Synonyms	Bordeaux Mixture; Bordo Mixture; Copper Calcium Sulfate; "Bouillie Bordelaise"; Copper Lime Mixture; Copper Sulfate-Hydrated Lime Mixture; Basic Copper Sulfate-Calcium Hydroxide Complex; Cupric Sulfate with Lime
EINECS	Contact for details

Quality Control

Our Bordeaux Mixture is manufactured under strict quality protocols to ensure consistent efficacy and purity. The production process is controlled to deliver the correct ratio of active copper to lime, which is critical for phytotoxicity prevention and fungicidal activity. We provide comprehensive Certificates of Analysis (COA) detailing key parameters such as total copper content, fineness, and pH. Our quality system is designed to meet the requirements of agricultural chemical manufacturers and formulators.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials. This product is hygroscopic (moisture-sensitive) and must be kept in original packaging to prevent caking and degradation due to atmospheric moisture. Ideal storage temperature is between 15-25°C. Keep away from acids and ammonium compounds.

Specification

Item	Specification
Appearance	Light blue to greenish-blue fine powder or granules
Identification (Copper)	Positive
Assay (as Cu)	≥ 20% w/w (Typical)
pH (in suspension)	7.5 - 9.5
Fineness (Wet Sieve Test)	≥ 98% passes through 45μm sieve
Water Solubility	Partially soluble, forms a stable suspension

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.