{"product_id":"copper-sulfate-crystals-5-lb-granular-epa-free-multiuse-lab-reagent","title":"Copper Sulfate Crystals 5 Lb Granular EPA Free - Multiuse Lab Reagent","description":"\u003cp\u003eIn this review of Mendeleev Style Copper Sulfate Crystals 5 Lbs the bottom line is straightforward: this granular reagent is aimed at hobbyists, small labs, and tradespeople who need a versatile, industrial-strength copper sulfate for multiple preparation tasks. The reviewer found it most useful for making Bordeaux and Burgundy mixtures, as a timber preservative ingredient, and as an electrolyte for simple copper plating projects. It is not a consumer-grade pond treatment for sensitive species, so buyers working with koi, goldfish, or trout should approach with caution.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e5 lb granular pack:\u003c\/strong\u003e Provides a substantial quantity suitable for repeated use in garden mixes, small workshop plating, or continued lab practice without frequent repurchase.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiuse application:\u003c\/strong\u003e Works for preparation of Bordeaux and Burgundy mixtures and as a base component in various wood preservative formulations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectroplating electrolyte:\u003c\/strong\u003e Can serve as the electrolyte for copper plating and electroforming projects, making it useful for hobby metalworkers and prototypers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEtching and coating:\u003c\/strong\u003e Functions as a printing etching agent and for copper coating on steel wire when used with appropriate process controls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPA free designation:\u003c\/strong\u003e Sold without EPA-restricted claims, so it is positioned for industrial and laboratory use rather than regulated pesticide applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis product suits DIY metalworkers, educators running small lab demonstrations, and gardeners or arborists preparing traditional Bordeaux or Burgundy fungicidal mixes. It is also appropriate for anyone experimenting with small-scale electroforming or needing a granular copper sulfate for etching and coating tasks.\u003c\/p\u003e\n\u003cp\u003eIt is not intended for pond treatments where sensitive species like koi, goldfish, or trout are present, and operators needing a ready-to-use, labeled aquatic algaecide should look elsewhere. Also, the product is not available for sale in Washington, so buyers in that state must seek alternatives.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenerous 5 lb quantity reduces the need for frequent repurchases and supports multiple projects.\u003c\/li\u003e\n\u003cli\u003eVersatile across applications from Bordeaux mix preparation to copper electroplating and etching.\u003c\/li\u003e\n\u003cli\u003eGranular powder form is easy to measure and dissolve for solutions used in plating or wood preservative prep.\u003c\/li\u003e\n\u003cli\u003eSuitable for small workshops and labs as a reliable inorganic reagent.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eContains active copper that is toxic to sensitive pond fish, so it is unsuitable for aquaria with koi, goldfish, or trout.\u003c\/li\u003e\n\u003cli\u003eNot available for sale in Washington, limiting accessibility for some buyers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct name\u003c\/td\u003e\n\u003ctd\u003eCopper Sulfate Crystals 5 Lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eMENDELEEV STYLE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForm\u003c\/td\u003e\n\u003ctd\u003eGranular powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary uses\u003c\/td\u003e\n\u003ctd\u003eBordeaux and Burgundy mixtures, timber preservative, electroplating, etching\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack size\u003c\/td\u003e\n\u003ctd\u003e5 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRegulatory note\u003c\/td\u003e\n\u003ctd\u003eEPA free; not for sale in Washington\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eMendeleev Style Copper Sulfate Crystals 5 Lbs is a practical, value-oriented reagent for hobbyists and small labs who need a multipurpose inorganic chemical for plating, etching, and preservative preparation. Buyers working with sensitive aquatic species or requiring state-available products should consider alternatives, but for general industrial and scientific tasks this pack offers solid utility and economical volume.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be used to treat pond algae?\u003c\/strong\u003e\u003cbr\u003eIt is not recommended for ponds containing koi, goldfish, or trout because these species are extremely sensitive to copper sulfate; use minimal copper-based products in such ponds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this product ready to use for electroplating?\u003c\/strong\u003e\u003cbr\u003eThe crystals serve as an electrolyte component for copper plating and electroforming, but users must prepare proper solutions and controls before plating.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre there sales restrictions?\u003c\/strong\u003e\u003cbr\u003eThe product is sold as EPA free and is not available for sale in Washington state, so check local availability before ordering.\u003c\/p\u003e","brand":"MENDELEEV STYLE","offers":[{"title":"Default Title","offer_id":48262350930139,"sku":"B0CD6JB5YC","price":37.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81TYou-flxL._SL1500.jpg?v=1776600632","url":"https:\/\/gearmusthave.com\/products\/copper-sulfate-crystals-5-lb-granular-epa-free-multiuse-lab-reagent","provider":"GearMustHave","version":"1.0","type":"link"}