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Standard: Qualified products: Al2O3 ≥ 15.60% Fe ≤ 0.70% Water Insoluble ≤ 0.15% pH (1% aqueous solution) ≥ 3.0 Arsenic ≤ 0.0005% Heavy metal (Pb) ≤ 0.002% First-class products: Al2O3 ≥ 15.80% Fe ≤ 0.50% Water Insoluble ≤ 0.10% pH (1% aqueous solution) ≥ 3.0 Arsenic ≤ 0.0005% Heavy metal (Pb) ≤ 0.002% Non-ferric sulphate, aluminum implementation of the HG T 2225-2001 type (qualified product, first-class product) Standard: Qualified products: Al2O3 ≥ 16.00% Fe ≤ 0.010% Water insoluble ≤ 0.15% pH (1% aqueous solution) ≥ 3.0 Arsenic ≤ 0.0005% Heavy metal (Pb) ≤ 0.002% First-class products: Al2O3 ≥ 17.00% Fe ≤ 0.005% Water insoluble ≤ 0.10% pH (1% aqueous solution) ≥ 3.0 Arsenic ≤ 0.0005% Heavy metal (Pb) ≤ 0.002% Industrial aluminum sulphate (low iron) implementation of the HG T 2225-2001 type (qualified product, first-class product) Standard: Qualified products: Al2O3 ≥ 15.60% Fe ≤ 0.70% Water Insoluble ≤ 0.15% pH (1% aqueous solution) ≥ 3.0 Arsenic ≤ 0.0005% Heavy metal (Pb) ≤ 0.002% First-class products: Al2O3 ≥ 15.80% Fe ≤ 0.50% Water Insoluble ≤ 0.10% pH (1% aqueous solution) ≥ 3.0 Arsenic ≤ 0.0005% Heavy metal (Pb) ≤ 0.002%

We are offering chromic acid. Product character product name: chromic acid chromic anhydride chromium trioxide chemical formula: cro3, molecular weight: 99.994. Dark red flakes. Melting point: 197℃ ((starts to decompose). Specific gravity: 2.70 gcm3. 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. packaging in hermetic steel drums, net weight for each:25kg(φ370×φ330×225mm), 50kg(φ365×435mm), 100kg(φ430×750mm), 200kg(φ450×1000mm)or 250kg(φ560×890mm) 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). Executive standard of chromic acid gbt1610-2009

• MOQ 20 Metric Ton

We are offering formic acid. Appearance: colourless combutibles liquid with seepage stimulate stimul soluble in water and alcohol. Specific gravity: 1.2201 (20). Melting point: 8.3 boiling point 100 packingpackingp.e drums25kg, 250kg uses: formic acid is widely used in diversified lines all over the world. In medical industry it is used in making amidopyrin, vitamin b and many other medicines. In chemical industry, formic acid is used in producing methanamide , diethyl formamide, rubber age resister, dying and so on .it is also an important material for pesticide, such as triazone. In other ways, formic acid is considerable used in green fodder storage.

• MOQ 20 Metric Ton

We are offering sodium dichromate. Product character product name: sodium dichromatesodium bichromate chemical formula: na2cr2o7·2h2o, molecular weight: 298.00 bright orange monoclinic needle shaped or granular crystal, dehydrated to copper-brown substance at 84.6℃. 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. packaging in reinforced-type composite plastic woven bags, net weight for each: 25kg, or 40kg. 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. executive standard gbt16112003

• MOQ 5 Metric Ton

We are offering basic chromium sulfatechrome tanning agentsulfato basico de chrome agente de curtido al cromo product character trivial name: chromium powder, alternate name: basic chromium sulfate sulfato básico de chrome, agente de curtido al cromo chemical formula: cr(oh) nso0.5(3-n) , molecular weight: 165.07, basicity: 33% . Application complex mainly with hydrated basic chromium sulphate and sodium sulfate, green powder, high moisture absorption and deliquescence. Used in leather and fur's tanning, retanning and electroplating, colourant. Packaging in moisture-proof paper-plastic composite bags, net weight for each: 25kg. 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.

• MOQ 21 Metric Ton

We are offering soda ash. Product description soda ash (na2co3) is the common name for sodium carbonate, which has a molar mass of 105.9888 gmol (anhydrous). Soda ash is inexpensive and used as an economical method for removing soluble calcium. Magnesium is similarly precipitated as insoluble magnesium carbonate; however, a more effective treatment for magnesium hardness is caustic soda, which precipitates magnesium hydroxide. Application soda ash is used to precipitate calcium in make-up water or while drilling anhydrite stringers. Provided the saturation level of the calcium salt has not been exceeded, the amount of soda ash required to treat out the calcium can be approximated by 350 mgl calcium ions requires 1.0 kgm³ of soda ash. Soda ash effectively and economically removes calcium from anhydrite by precipitation as calcium carbonate. Over-treatment with soda ash can result in a carbonate alkalinity and as consequent, excessive gel strength. package and storage 25kg bags, jumbo bags or according to customer’s requirement. Avoid high-intensity extreme pressure and prolonged exposure to strong sunlight. Keep container closed. Keep away from heat, sparks and flames.

We are offering sodium sulfide. [ molecular formula ] : na2s [einecs] : 215-211-5 [cas no]. 1313-82-2 [molecular weight]: 78.03 [appearance]: yellow flake or red flake [hs code]:2832.10 [toxicity]:oral rat ld50: 208 mgkg [specific gravity]:1.86 [solubility in water]: soluble (slightly soluble in alcohol) [ph]: alkaline [stability]: stable under ordinary conditions. Oxidizes in air [general applications]:sodium sulfide is a yellow to red solid;soluble in water, slightly soluble in alcohol.it is a strong reducing agent and reacts with oxidants. It is primaily used in pulp and paper industry;it is used in water treadment as an oxygen scavenger agent, in the photographic industry to protect developer solutions from oxidation, in textile industry as a bleaching as a desulfurizing and as a dechlorinating agent and in leather trade for the sulfitization of tanning extracts. It is used in chemical manufacturing as a sulfonation and sulfomethylation agent.it is used in the production of rubber chemicals, sulfur dyes and other chemical compounds.its used in other applications include ore flotation, oil recovery, food preservative, making dyes and detergent. [packages]25kgsbags two grade: grade 1 apperance red flakes na2s 60% min na2co3 2.0% max fe 150ppm max water insolubles 0.5% max grade 2 apperance yellow flakes na2s 60% min na2co3 2.0% max na2s2o3 2.05 max fe 30ppm max water insolubles 0.5% max