 Patina Chemicals
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All Patina Chemicals In Stock For Immediate Delivery
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City Chemical offers the best prices and widest selection of Patina Chemicals used in oxidation coloring and antiquing solutions for metals such as copper, brass, bronze and steel.
Patina Chemicals are most often used by artists and sculptors, metalworkers and architects to develop different finish colors or patinas for a variety of uses. On metal, patina is a coating of various chemical compounds such as oxides or carbonates that are formed on the surface during exposure to different elements.
The most common chemicals for Patina Recipes appear below. Click for details:
64-19-7 CH3COOH MW 60.05 Also known as vinegar acid. Glacial acetic acid is the pure compound (99.8% min), as distinguished from the usual water solutions known as acetic acid. Uses: Blue green patinas (bronze) & purple patina copper. Other uses: production of plastics, pharmaceuticals, dyes, photographic chemicals and textile printing.
12125-02-9 NH4Cl MW 53.49 White crystals; cool, saline taste; somewhat hygroscopic. Uses: Soldering flux, in fertilizers, resins and adhesives, and in making antique green patina.
21109-95-5 BaS MW 233.43 Yellowish green or grey lumps, soluble in water. Barium sulfide mixtures Uses: Dehairing hides, in flame retardants & luminous paints. Matte brown patina.
8012-89-3 C15 H31 CO2 C30 H61 MW 415 Wax from the honeycomb of the bee, soluble in alcohol. Uses: Furniture and floors waxes, candles, cosmetics, adhesive compositions & leather dressings.
10035-06-0 Bi(NO3)3,5H2O MW 286.98 Hygroscopic crystals that are clear, colorless and lustrous. Soluble in dilute nitric acid, alcohol, and acetone. Uses: Preparation of other bismuthsalts, luminous paints, enamels and in making white patinas (bronze).
10026-22-9 Co(NO3)2 MW 182.943 Red crystals, deliquescent in moist air. Uses: Sympathetic inks, cobalt pigments, catalysts, additive to soils and animal feeds, vitamin preparations, hair dyes and porcelain decoration. Black patina-applied hot.
12069-69-1 CuCl2 MW 170.48 Also known as copper chloride. Green deliquescent crystals, soluble in water. Uses: Isomerization and as a cracking catalyst, disinfectant, pyrotechnics, wood preservation, fungicides, photography and pigment for glass and ceramics. Apple green patina (brass, bronze).
10031-43-3 Cu(NO3)2.3(H2O) MW 241.60 Also known as copper nitrate. Blue, deliquescent crystals. Soluble in water and alcohol. Uses: Light-sensitive papers, in textile dyeing, paints and as a catalyst in pharmaceutical preparations. Basic green patina (copper, brass, bronze).
64-02-8 C10H12N2O8Na4.4H2O MW 380.172 Abbreviation for Ethylenediaminetetraacetic acid. Tetrasodium. Colorless crystals, soluble in water. Uses: Detergents, shampoos, decontamination, common chelating agent.
10025-77-1 FeCl3 MW 162.21 water soluble, Uses: Brown patina (copper, brass, bronze). Other uses: Treatment of sewage, water purification, for an etching agent for engraving and for photography and printed circuitry.
6153-56-6 C2O4H2 MW 90.03 Transparent, colorless crystals, water soluble. Occurs naturally in many plants (wood sorrel, rhubarb, spinach). Uses: General metal and equipment cleaning, leather tanning, rust proofing treatments, bleaching of textiles, rare-earth processing, printing and dyeing auxiliary. An ingredient for deep rust red patina.
39365-88-3 K2CO3 MW 110.3 Also referred to as sulfurated potash, potassium sulfide lumps, K2S. Yellow/brown water soluble lumps. Uses: Black/brown patina (copper, brass, bronze).
7778-50-9 K2Cr2O7 MW 294.18 Bright, yellowish-red, transparent crystals. Decomposes at 500C. Soluble in water, insoluble in alcohol. Dangerous fire risk in contact with organic materials. Uses: an oxidizing agent. It also has uses in: electroplating, explosives, adhesives, pigments, alloys and as a depolarizer in dry cell batteries. Other uses: Orange patina (copper, brass, bronze).
7761-88-8 AgNO3 MW 169.87 White crystalline, soluble in water. Silver patina.
7772-98-7 Na2S2O3.5H2O MW 158.09 Also spelled sodium thiosulphate. Colorless, water soluble, crystalline. Thiosulfate anion reacts stoichiometrically with iodine, reducing it to iodide. Uses: Patina recipes to make greens and blues, (copper, brass, bronze).
18282-10-5 SnO2 MW 150.71 Also known as Tin Oxide (Sn02). White powder; anhydrous or hydrated, insoluble in water. Uses: Ceramic glazes and colors, putty; perfume preparations; textiles; polishing powder for steel, and the manufacture of special glasses. Other uses: making white patina.
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