You need 50-60% sugar content too.I have a bottle of 6% Oxalic acid with 30% sugar.
I thought the dilution rate should be 3%?
Should I cut this by half with water?
Practical percentage varies. In Switzerland they use 2,5% and in Mediterranean region they often use 4,2%.Jimbeekeeper. I have the same box and was worried that no strength was on it - I used 20gm in 500ml of 1:1 syrup -Finman said a bit weak but my results have been good with no bee loss. Time will tell...