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ITEMS               STANDARDS    

1.NaHCO3:            99%MIN             

2.AS:                 0.0001%MAX     

3.HEVY METALS(Pb):  0.0005%MAX     

4.LOSS ON DRYING:   0.20%MAX         

5.PH:                 8.6MAX          

6.AMMONIUM:   MEETS REQUIREMENTS  

7.CLARITY:      MEETS REQUIREMNETS 

8.APPEARANCE: WHITE POWDER 

Property : white powder or non-transparent monoclinic crystal. relative density is 2.159, easy to dissolve in water;less to ethanol. It will decompose when the temperature is 65℃, and will lose carbon dioxide when the temperature is 270℃.