It is not applicable that sodium sulfite is used alone as the deoxidant for the vapor injection boiler in oil fields.because of the high remains of sodium sulfite and the severe acid erosion in the water.

• 若单独用硫酸钠作除氧剂，则因水中亚硫酸钠的残余量高，产生严重的酸腐蚀，而不适用作油田注汽锅炉除氧剂。