Potash, Sulfurated, 500g, Liver of Sulfur, Patina Copper, Silver
Potash, Sulfurated, 500g Lab grade Sulfurated potash is liver brown changing to greenish yellow. Has odor of sulfur and decomposes upon exposure to air but soluble in water leaving a residue. It’s use includes decorative color effects on copper, brass, bronze and nickel. Chemical Formula: K2Sn Appearance: Greenish Brown or Yellow Lumps Chemical Grade: Tech Quantity: 500g CAS Number: 39365-88-3 Please see our Patinas for Metal Artists page for a list of popular chemical patina recipes.
Scrap Gold Recovery Kit, 500g Sodium Metabisulfite and 500g Urea
Gold Recovery Kit, 500g Sodium Metabisulfite and 500g Urea, Gold Refining Kit, Scrap Gold Recovery This kit is a convenient way to obtain some of the chemicals used in scrap gold recovery. General instructions are included giving a short overview for performing gold and other precious metals precipitation from aqua regia solution. Links to more in depth websites are also included. Sodium metabisulfite is commonly used to precipitate dissolved gold out of aqua regia and gold chloride solutions. When it is dissolved into water, sulfur dioxide gas is created which is excellent at precipitating gold from the solution. Sodium metabisulfite is a popular choice in this process because it is more selective in precipitating gold by itself. In the process of gold extraction from e-waste and scrap gold recovery, Sodium Metabisulfite is usually used along with Urea. Urea, also called carbamide, is soluble in water and alcohol and is non-combustible. In gold recovery processes, it is used as a neutralizer of excess nitric acid in aqua regia solutions. To make aqua regia solution you will need concentrated hydrochloric acid and concentrated nitric acid (for nitric acid, please see sciencecompany.com). These chemicals are sold separately from this kit.
Potassium Ferricyanide, 500g, Cyanotype photography, Blueprint
Potassium Ferricyanide, 500g, Cyanotype photography, Blueprint Potassium Ferricyanide appears as bright red, lustrous crystals. Soluble in water, slightly in alcohol. Uses include production of pigments, cyanotyping, laboratory reagents and electroplating. The compound itself has low toxicity but decomposes on strong heating to evolve highly toxic fumes. Potassium Ferricyanide readily forms red, monoclinic crystals. Chemical Formula: K3Fe(CN)6 Appearance: Orange-red crystalline powder Chemical Grade: Lab Quantity: 500g CAS: 13746-66-2
Potassium Bromide, 500g, Purified, ACS Reagent Dog, Cat Anti-seizure
Potassium Bromide, 500g, Dog, Cat Anti-seizure, epilepsy, Veterinary Potassium bromide is often used by veterinarians as an anti-seizure medication for dogs and is also used extensively in photo developing, engraving and soap making. Our Purified, ACS Reagent Grade Potassium Bromide appears as fine, white granules and is somewhat hygroscopic. It is soluble in water and glycerine and is toxic to taste or inhale. Those intending to use for medicating their own pets should consult a veterinarian for proper dosage instructions. Chemical Formula: KBr Appearance: Fine white granules Chemical Grade: Purified, ACS Reagent Quantity: 500g CAS: 7758-02-3
Cupric Chloride, 500g Patina, Copper, Bronze, Brass, Flame color
Cupric Chloride, 500g for Patina, Copper, Bronze, Brass, Flame color Chemical Formula: CuCl2 – 2H2O Appearance: Green crystalline powder Chemical Grade: Lab Quantity: 500g CAS: 10125-13-0 Cupric Chloride is also called Copper Chloride and is soluble in water and alcohol. It burns a blue or blue/green flame. Uses include creating blue flame displays, photography, electroplating baths, fungicides, pigment for glass and ceramics, mordant in dyeing and printing fabrics. Toxic by ingestion and inhalation. Please see our Patinas for Metal Artists page for a list of popular chemical patina recipes. This 500g size Cupric Chloride only ships to destinations within the 48 contiguous US states and Canada using Ground Limited Quantity service by UPS or FedEx or USPS Ground Advantage. No air deliveries allowed.
Zinc Chloride, Anhydrous, 500g
Zinc Chloride, Anhydrous, 500g Technical grade — Appears as a white crystalline solid, hygroscopic and very deliquescent. Used in some metal patina formulas. This 500g size may only ship to destinations within the 48 contiguous US states and Canada using ground shipping, limited quantity only via UPS or FedEx. No air deliveries allowed.