Use of hydrazine compounds as corrosion inhibitors in...

Details Use of hydrazine compounds as corrosion inhibitors in... Use of hydrazine compounds as corrosion inhibitors in...

C - Chemistry, Metallurgy

23

F

31/48

C23F 11/06 (2006.01)

Patent

CA 1144360

ABSTRACT OF THE DISCLOSURE The addition of a small amount of hydra- zine or a derivative or salt thereof serves to inhibit the corrosive effect of caustic such as sodium hydroxide on metal surfaces during the manufacture of the caustic or in processes using same. For instance, aqueous sodium hydroxide solutions having hydrazine or a derivative or salt thereof added thereto in an effective concentra- tion in the range of from as little as about 2 ppm or less and up to about 1000 ppm, preferably of from about 2 to about 200 ppm, and most preferably from about 3 to about 40 ppm, can be concentrated by evaporation in nickel or nickel alloy equipment at temperatures as high as 150°-175°C without causing undue corrosion. -28-

363239

Affiliated with

Also associated with

Rating

Use of hydrazine compounds as corrosion inhibitors in... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Use of hydrazine compounds as corrosion inhibitors in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Use of hydrazine compounds as corrosion inhibitors in... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-55167