... formaldehyde,acetic acid ,hot glycol,glycerol, and pyridine etc ,in the condition of neutral or tiny alkalescence ,it can be condensated ... agent etc.This product accord to the regulation of National standard GB9567-1997Detail parameters,Purity≥99.8%; Water content ≤0.1%,PH ... .5-9.5,Ash content≤0.03%,Test for methanal dissolving in water tubidity (Kaolium turbidity)≤20,Color(Pt-Co)≤20 melamine 99.8%