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          1. Sodium metabisulfite

            Quality standard: HG/T2826-2008


            Item

            National standard
            HG/T2826-2008

            Enterprise current value

            Superior grade

            Top grade

            Main content (as Na2S2O5),%

            ≥96.5

            ≥95.0

            ≥97.0

            Iron content (as Fe),%

            ≤0.005

            ≤0.010

            ≤0.002

            Water insolubles content,%

            ≤0.05

            ≤0.05

            ≤0.02

            Arsenic (as As) content, %

            ≤0.0001

            ≤0.0001

             

            Molecular formula: Na2S2O5
            Molecular weight: 190.10
            Appearance: white crystal powder
            Net weight: 25, 50, 1000 kg/bag or according to customer requirements.

             

            To use
            Used for the production of insurance powder, sulfadimethylpyrimidine, caprolactam, etc., as well as chloroform, phenylsulfoxide and benzaldehyde purification; an ingredient used in the photographic industry as a fixing agent; for the production of vanillin in the spice industry; used as preservative in brewing industry, rubber coagulant and cotton cloth bleaching dechlorination agent; organic intermediates, dyes, tanning used as reducing agents used in electroplating industry, oilfield wastewater treatment and as mineral processing agent in mines, etc.


            In industry
            Used for printing and dyeing, organic synthesis, printing, leather, pharmaceutical and other departments; Used as preservative, bleach and loose agent in food processing.


            Used as chemical reagent
            (printing and dyeing and photography, etc.), used as bleaching agent, mordant, reducing agent, rubber coagulant, also used in organic synthesis pharmaceutical and spices, etc


            Business license

            Company Add: Shijiazhuang New and High-tech Industrial Zone, Hebei province
            P.C.: 050000  Contact: Director Ren +86-13832390234
            Manager Ren +86-13603311335/15027769680   Fax: +86-311-86581118
            E-mail: 250768848@qq.com   Website: www.napnhi.com

            Copyright(C)2021,Shijiazhuang Weifeng Technology Co., Ltd. All Rights Reserved. Supported by ChemNet ChinaChemNet Toocle 31fabu Copyright Notice

            weifeng technology
            Business license
            weifeng technology

            Company Add: Shijiazhuang New and High-tech Industrial Zone, Hebei province
            P.C.: 050000  Contact: Director Ren +86-13832390234
            Manager Ren +86-13603311335/15027769680   Fax: +86-311-86581118
            E-mail: 250768848@qq.com   Website: www.napnhi.com

            Copyright(C)2021,Shijiazhuang Weifeng Technology Co., Ltd. All Rights Reserved. Supported by ChemNet ChinaChemNet Toocle 31fabu Copyright Notice

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