Glyoxal 40% CAS 107-22-2 also calls Oxaladehyde. It is an aliphatic binary aldehyde with the simplest molecular structure. Glyoxal 40% appearance is colorless or light yellow liquid.
PH value influence the color of glyoxal 40%. Higher PH has yellower color. Commonly, most China glyoxal 40% color 20#max. What is the reason?
It has glycolic acid in glyoxal 40%. The more hydroxyl ions, the yellower the color.
Below is glyoxal 40% color for PH 1.9 VS 6.02 experimental comparison in Huashihang Group laboratory.
glyoxal 40% color for PH 1.9 VS 6.02
