Product Character Chemical Formula: Na2Cr2O72H2O, molecular weight: 298.00. Bright orange monoclinic needle shaped or granular crystal, dehydrated to copper-brown substance at 84.6 degree celsius. Deliquesces readily in air, and easily soluble in water, forming an acidic orange solution. A strong oxidizing agent in an acidic medium. Poisonous. Application Mainly used in the manufacture of chromium anhydride, yellow pigments and other chromate salts. Also used in leather tanning, textile dyeing, electroplating, medicine, lipids, oil-well drilling and wood preservation etc. Notice 1. Avoid moisture, heat and shock during storage and transportation. Keep away from combustibles. 2. Do not store with foodstuff or strong reducers. 3. Avoid contacting with eyes and skin. 4. Personal protective appliance should be equipped with, such as self-suction respirator, acid-proofing rubber gloves, security coat and boot, chemical-resistant protective glasses. 5. In case of leakage, reduce with 10% sulfuric acid and ferrous sulfate, and neutralize with calcium oxide immediately. [quality standard]:GB1611--2003 Items Standard (Na2Cr2O72H2O) 98.3%min Sulfate(SO4) 0.30%max Chloride(CL) 0.10%max Packaging:In pp woven bags, 25kg,50kg or 1000kg net.
Product Character Chemical formula: Cr2O3, molecular weight 151.99. Dark green hexagonal crystal or amorphous olive-green powder with metallic sheen. Specific gravity: 5.21g/cm3, Mons' hardness: 8.5-9, melting point: 2226±25 degree celsius, boiling point: 4000â??. Insoluble in water or acid. Soluble in hot alkali metal bromate solution. Extremely stable against light, air, high temperature and corrosive gases. High covering power. Application Mainly used in smelting metallic chromium and chromium carbide, producing ceramic, grinding, polishing, coating, printing ink etc. Packaging [Packing]:In PP woven bag with PE bag inside,25kg net or 1000kg net. Notice Store in dry places, avoid moisture, acid mist and sunlight. It is forbidden to store with foodstuffs and acid product. [quality standard]: GB/T20785-2006 Item standard Cr203 99%min Moisture 0.3%max Water soluble matter 0.3%max Covering Power 95%min Oil absorption,g/100g 15-25g Cr+6 50ppm Particle Size 325 mesh passing through 99.7% min.
Product Character Chemical Formula: K2Cr2O7, molecular weight 294.18. Orange-red triclinic crystal. Non-hygroscopic, soluble in water, but insoluble in alcohol. Strong oxidation. Flammable in friction or collision with organic compounds. Poisonous. Application Mainly used in the manufacture of chromic oxide, potassium chromate, chromate yellow pigments, welding electrode, match, chromic potassium alum and chemical reagent. Also used in steel passivating and used as oxidizing agent. Notice 1. Avoid moisture, heat and shock during storage and transportation. Keep away from combustibles. 2. Do not store with foodstuff or strong reducers. 3. Avoid contacting with eyes and skin. 4. Personal protective appliance should be equipped with, such as self-suction respirator, acid-proofing rubber gloves, security coat and boot, chemical-resistant protective glasses. 5. In case of leakage, reduce with 10% sulfuric acid and ferrous sulfate, and neutralize with calcium oxide immediately [quality standard]:HG/T1723242005 Items standard K2Cr2O7 99.7%min Chloride(CL) 0.05%max Insoluble 0.02%max Sulfate(SO4) 0.02%max Moisture 0.03% Sodium (Na+) 0.5% Packaging:In moisture-proof paper-plastic composite bags, net weight for each: 25kg.
Product Character Trivial name: chromium powder, alternate name: basic chromium sulfate . Chemical formula: Cr(OH)nSO0.5(3-n), molecular weight: 165.07, basicity: 33% . Complex mainly with hydrated basic chromium sulphate and sodium sulfate, Green powder, highly soluble in water. Application Used in leather and fur's tanning and retanning. Notice 1. The product is non-hazard goods, but should be stored in a well-ventilated dry cool storehouse. 2. Avoid contacting with eyes and inhaling the dust. 3. Please wear protective gloves, safety glasses and dust mask to avoid dust fog. 4. In case of leakage, neutralize with calcium oxide immediately. [quality standard]: QB/T2413-1998 ItemsType & Standard Chrome Oxide Cr2O3251231221191 Basicity332332332402332 Water Insolubles0.10%max0.10%max0.10%max0.10%max---------- Iron(Fe3+)0.10%max0.10%max0.10%max0.10%max0.10%max Cr6+3ppm3ppm3ppm3ppm3ppm Packing:25kg bag.
Product Character Chemical formula: CrO3, molecular weight: 99.994. Dark red flakes. Melting point: 197 degree celsius ((starts to decompose). Specific gravity: 2.70 g/cm3. Strong oxidation, deliquesces readily in air, and highly soluble in water. Flammable in friction with organic compounds. Poisonous. Application Widely used in chromium plating, wood preservation, medicine, catalyst, pigment, oxidizing agent, glass coloring and mordant of textile etc. Also used as a material producing oxidative catalyst. Notice 1.Do not store with inflammable substance, reducing agent, organic compounds etc. 2.Avoid moisture, heat and shock during storage and transportation. 3.Also avoid contacting with eyes and skin. 4.Personal protective appliance should be equipped with, such as self-suction respirator, acid-proofing rubber gloves, security coat and boot, chemical-resistant protective glasses. 5.In case of leakage, the polluted area should be quarantined. Entry and exit should be strictly controlled. The leaked material should be gathered, reclaimed or transported and disposed in the waste-disposal station. Use recommendations this product has high content, low impurities and sulfate, routine use of maintenance, such as by 50 kg / barrel chromium anhydride dollars, need to add reagents or analytical pure sulfuric acid 30 ~ 50ml. (This ratio is the amount of chromium added daily maintenance dosage of fluid, the actual test cycle analysis according to the report should also be adjusted). [quality standard]:GB/T1610-2009 Item standard Assay(CrO3) 99.8%min Water insoluble matter 0.02%max Sulfate(SO4) 0.06%max Sodium (Na) 0.05%max Chloride(Cl) 0.005%max Iron(Fe) 0.005%max Packaging:In hermetic steel drums, net weight for each:25kg(Ï?33025mm),50kg(Ï?365Ã?435mm),100kg(Ï?430Ã?750mm),200kg(Ï?450Ã?1000mm)or 250kg(Ï?560Ã?890mm)
We are glad to propose 500 MT of stain less steel mill scale. Mill scale is formed on the outer surfaces during by the hot rolling lamination of stainless-steel products. At a visual inspection the material is a hard brittle sand and is mainly composed of iron oxides, mostly ferric, and is bluish black in colour, but it also contains considerable alloying elements such as chromium and nickel. The recovery ratio after melting in furnace for the most valuable alloy elements is: - Ni: 3.5 - 4.5% - Cr: 6-8% From the chemical and physical analysis performed on the scrap, and according to the European environmental rules, the material has been classified as a special non dangerous waste, listed in green list. In particular the mill scale can be classified as follows: Waste code: 10 02 10 The material is stored on cemented flooring, and it can be loaded loose in tipper trucks or containers. Chemical analysis of the material is available on request.
Name : Chrome Oxide Percentage : 60%
Supplier: Salt and salt chemicals, sodium chloride (salt), sodium sulphate, sodium sulfite, sodium bisulfite, sodium carbonate (soda ash), sodium metabisulphite
Commodity: Sodium Sulphate anhydrous Product Nature Molecular formula: Na2SO4 Molecular weight: 142.04 Property: white granular crystal or powder Use As filler of detergent, the making of sodium sulphide, water glass, or used in papermaking, glass, dye and used as filler, dyeing auxiliary, laxative, antidote, t also can be used in fiber, leather, metallurgy, enamel and soap. Specifications Item GB6009-2003 Type First grade Result of common product Result of neutral product Na2SO4 99.0 99.20 99 40 Water insoluble matter %0.05 0.02 03 Ca & Mg %(Mg) 0.15 0.02 02 Chloride %(Cl) 0.35 0.23 20 (Fe) 0.002 0.0001 0001 Moisture % 0.20 0.02 02 Whiteness % 82 88 85 Packing and Storage Knitted bags lined polyethylene plastic bags double packaging, Weighing 25Kg/50KG/1000Kg. Transportation-and harsh rain. Stored in a cool, ventilated, dry place.
