baking soda properties

Sodium Bicarbonate, Small white crystal, and its solubility in water is less than in sodium carbonate. Solid-state Sodium Bicarbonate begins to decompose into sodium carbonate, carbon dioxide, and water when temperature is above 50℃ and is completely decomposed when temperature hits 440℃. Its solution presents alkalescent when soluble in water, which make it a perfect leavening agent in food manufacturing. 
baking soda specification

ITEMS	SPECIFICATIONS	RUSULT
Main content %	99.0%-100.5%	99.9%
NaCl ,as Cl%	0.40%ma	0.12
As %	0.0001%max	pass
Heavy metal as Pb%	0.0005%max	pass

 baking soda purpose

Mainly applied as food additive in food stuff industry, foaming agent in rubber industry, acidifying agent in medicine industry, reactor in fire fighting instruments, compounding ingredient in detergent making, detergent in movie making, Carbon Dioxide(CO2) reactor in beer,