Sell Sodium Bisulfite

详情

Packing:  in *5/*0kg Net PP/PE Bag Model NO.:  *9.*0% Standard:  GB Productivity:  ****0mt/Yeae Unit Price/Payment:  T/T, L/C Trademark:  QINGYA Origin:  China Min. Order:  *0mt Transportation:  by Sea quality:  High Purified Grade Process:  Refined Salt Appearance:  Powder Export Markets:  North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe CAS NO: ********5 Molecular weight: **4.*6 Port of loading: XINGANG (TIANJIN, CHINA) White crystalline powder with sulfur odor, soluble in water, also slightly soluble in alcohol. Easily oxidized in air to sulfate. Place of origin: China Appearance: White powder Use: Mild reducing agent in organic synthesis in particular in purification procedures, in dyeing, paper making, and as food preserve. Packing: *5KG/Bag, *0MT/*0FCL Characteristic: Clear monoclinic crystal or white crystalline powder; Sulfa dioxide odor; Specific density: 1.*8; Dissociate upon heating; Water soluble; Acidic aqueous solution; Slightly soluble in alcohol; Readily oxidized into sodium sulfate in air; Strongly reductive; Form adduct with formaldehyde; Storage: Tightly sealed and avoid light. Inspection Item Unit Superfine. G. First. G. Second. G. Sodium Nitrate % 0.8 1 1.9 Sodium Nitrite % *9 *8.5 *8 Moisture % 1.4 2 2.5         Water-insolubles % 0.*5 0.*6 0.1 Chlorides % 0.1 0.*7 *- Specification Reagent grade Pharmaceutical grade Appearance Conform Conform Assay SO2 /% � *8.***5.0 � *8.***5.0 Clarify degrees test Conform Conform Water insoluble/% � 0.**5 � 0.*1 Chloride (Cl)/% � 0.*1 � 0.*2 Ferric (Fe) /% � 0.**1 � 0.**2 Arsenic  (As) /% � 0.***1 � 0.***2 Heavy metal (Pb) /% � 0.**1 � 0.**2