SODIUM DISULFITE PA; PURITY: ≥97.0%; MANUFACTURER: PANREAC APLLICHEM; CODE: 131698; CAS NO.: 7681-57-4; PHYSICAL STATE: SOLID; WHITE COLOR; PACKAGING: 500 GRAMS BOTTLE; APPLICATION: CHEMICAL ANALYSIS DETERMINATION OF REACTIVE SILICA IN BAUXITE; MANDATORY DOCUMENTS: CHEMICAL PRODUCT SAFETY INFORMATION SHEET (MSDS) AND CHEMICAL ANALYSIS CERTIFICATE; MINIMUM VALIDITY: 2 YEARS; SIMILAR DOES NOT WORK. THE INVOICE MUST HAVE THE LOT IDENTIFICATION. THE PRODUCT IS NOT CONTROLLED BY THE POLICE