fludyoptasyphos - 29-6-2010 at 06:20
in isopropanol CH3CHOHCH3, ethylene glycol HOCH2CH2OH
and others, is added a dye , green , yellow or blue , what is ?
unionised - 29-6-2010 at 10:47
Whatever was cheap, not too toxic, and would make the product a nice colour.
fludyoptasyphos - 4-8-2011 at 20:56
i think E-130 to E-133 or antraquinone oil solvent blue dye (or other colors)
smaerd - 4-8-2011 at 23:40
Check the MSDS(Material Data Safety Sheet), they usually have a decent ball-park range of the chemicals you may run into in a certain product.
Although, there is usually contamination, so don't treat the MSDS as a gospel.