Product Name: CAS No. 7681-57-4 Sodium metabisulfite Used in Industrial Grade Model NO.: STC-SM Type: Industrial Circulating Water Treatment Agent Appearance: Powder Color: White Environmental Protection: Yes Certification: ISO EINECS: 231-673-0 Formula: Na2s2o5 CAS No.: 7681-57-4 Purity: 90%-99% Grade Standard: Industrial Grade Trademark: Sunshine Transport Package: Plastic Woven Bag with PE Liner Specification: 25kgs/bag Origin: China HS Code: 2832100000 Product Description Product Description: CAS No. 7681-57-4 Sodium metabisulfite Used in Industrial GradeProduct Informations:CAS No.7681-57-4EINECE231-673-0HS CODE2832100000MOLECULAR FORMULANa2S2O5Specifications:1)Food GradeItemsSpecificationsTypical AnalysisColour/White or yellowishWhiteState/Crystalline powderCrystalline powderNa2S2O5(%)96.5 Min.97.1Fe(%)0.003 Max0.0021Clarity/PassedPassedAs(ppm)1.0 Max0.85Heavy metal(as Pb)(ppm)5.0 Max0.042)Industrial GradeItemsSpecificationsTypical AnalysisNa2S2O5(%)96.5 Min.96.83Fe(%)0.003 Max0.0006As(ppm)1.0 Max0.8Heavy metal(as Pb)(ppm)5.0 Max2.0Remarks:1. Packing: Plastic woven bag with PE liner.2.Utilizes China National Standard GB1893-2008.Sodium metabisulfite Applications:1Used in wide range of industrial and municipal waste water treatment.2Used in pulp and paper making.3Used in mining industry.4Used in production of cleaning agents, detergents ans soaps.5Used in sterilizing the equipment in beer and wine manufacturing.6Used in water reducing agent for concrete admixture in construction industry.7Used in dye industry.8Used in oil field production and disinfection.9Used in removal of tree stumps in landscape gardening.10Used in water treatment in leather tanning process.11Used in food preservative for dried foodsProduction Process Flow Chart:Company Profile:Hunan Sunshine Techlogies Co., Ltd is specialized in developing and supplying all kinds of battery materials and batteries, serving as an outlet for our partner factories. All of our factories are well experienced in their industries, and have been qualified through astrict standard system for innovation capabilities, quality control, production capacity, production safety, logistics, law and code compliance, etc...Our experienced QC and merchandiser teams travel around mainland China to assure strict implementation of all our orders and projects and to perform the coordination with our partner factories.We serve as an outlet for our partner factories. All our factories are well experienced in their industries, and have been qualified through astrict standard system for innovation capabilities, quality control, production capacity, production safety, logistics, law and code compliance, etc.. Our experienced QC and merchandiser teams travel around mainland China to assure strict implementation of all our orders and projects and to perform the coordination with our partner factories.Our R&D team maintains aclose co-work with our partner factories on technical improvements and innovations, which is avery important part of the cooperation between our company and our factories.With the joint efforts of our team and partner factories, our company is growing steadily, and we have been serving our customers with ahigh level of satisfaction.We keep sourcing reliable suppliers for various products to meet the needs from our present customers. And we welcome new customers send us inquiries, which will be responded to in atimely manner. We look forward to building along term and mutually beneficial partnership with all of our customers.What we provide: Quality Products +Timely Shipment +Competitive Cost.What we strive for: Ultimate Customer Satisfaction.