Eng-Tips is the largest engineering community on the Internet
Intelligent Work Forums for Engineering Professionals
-
Congratulations waross on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!
-
How to calculate ppm generated of formaldehyde in batch
Ok, I just slapped myself, can't believe I missed that. I guess I was thinking since liquid-->gas has volume expansion, but there's still mass conservation law that applies between vapor and liquid. Also I was skeptical at the 15000+ ppm calculated because I was there during the a batch and I...- ahumza94
- Post #3
- Forum: Chemical process engineering
-
How to calculate ppm generated of formaldehyde in batch
Have a batch with a 3 lb curative package. The curative package contains .1 weight percent formaldehyde. Its a butyl rubber based batch mixed in a banbury mixer so a lot of heat is generated from the rubber masticating. The batch mixes until it reaches 350F and then we dump the batch. Question...- ahumza94
- Thread
- Replies: 3
- Forum: Chemical process engineering
