Malachite Green – Aqion Bulk Powder 1 kg for Aquarium & Pond Fish

Malachite Green Chloride (Basic Green 4) — 1 kg is a bulk laboratory- and aquarium-grade chemical compound supplied by Aqion LLC for professional aquatic facility, research, and ornamental fish system maintenance.

Intended Use Statement

Intended exclusively for water conditioning, biological staining, and external water bath preparation in non-food ornamental aquarium and pond fish facilities. For ornamental fish only. Not for food fish or human use.

Chemical & Product Specifications

• Chemical Name: Malachite Green Chloride (Basic Green 4)
• CAS Registry Number: 569-64-2
• Molecular Formula / Weight: C23H25ClN2 (364.91 g/mol)
• Physical Form & Appearance: Dark green crystalline powder with metallic luster (packaged as 1 kg net weight; 2 x 500g sealed inner bags)
• Solubility: Soluble in water (~40–60 g/L at 20°C); forms a deep blue-green aqueous stock solution
• Net Weight: 1 kg (1,000 grams)
• Aqion SKU: MG-1KG

Handling, Personal Protective Equipment (PPE) & Storage Guidance

• Personal Protection: Wear nitrile gloves, eye protection, and a dust mask when weighing powder; avoid dust inhalation or skin/eye contact and wash hands after handling.
• Environmental & System Precautions: Remove activated carbon filtration before water application and maintain vigorous aeration throughout use.
• Storage: Keep container tightly closed in a cool, dry, well-ventilated area (below 25°C / 77°F) away from direct sunlight, moisture, and incompatible oxidizing materials.

Important Disclaimers

• Ornamental Fish Only: For ornamental fish only. Not for food fish or human use.
• Regulatory Prohibition: Malachite green is strictly prohibited by the U.S. FDA for use in any food fish, aquaculture food species, or food-producing animals due to tissue persistence (leucomalachite green). Never discharge treated water into natural waterways or systems housing edible aquatic species.
• Keep Out of Reach of Children: Store locked up and away from children, domestic pets, and food preparation areas. Follow all printed package label directions.