... White granular or crystalline powder Uses:Leather, chrome tanning.Refind Sodium Formate 90%,92%,94%,95%,97% Properties:White granular or ... synthesis of agents; Printing and dyeing industry, reducing agent..For the production of sodium hydrosulfite, oxalic acid and formic acid .ItemsIndexContent ,% ≥ ... .02.51.50.5Sodium chloride ,% ≤3.02.52.50.5Sulfured sodium ,% ≤0.020.020.020.01Water ,% ≤1.51.51.00. ...