Hi - New and need advice

Hi, I'm very new to this. Have just attempted to make my first batch of cds but I think I have got the concentrations wrong as when I mix the Hydrochloric acid and Sodium Chlorite together in the shot glass it turns to a light yellow colour and not the dark brown as in the Andreas Kalker video. I bought Hydrochloric acid at 35% strength and need to achieve 4% so have diluted it with distilled water using these ratios: 94.85ml acid to 735ml water. Have I done something wrong? Any advice greatly received. Thanks.

Your dilution calculation is correct.



I presume you are following my shot-glass and dual infusion methods of making CDS that Andreas Kalcker demonstrates?

5ml of MMS + 5ml of 4% HCL into the reactor container, twice, 8-12 hours apart?

If you dilute some of that 35% HCL to 10% HCL, you only need one infusion. The recipe is 12ml of MMS + 12ml of 10% HCL.

CDS water in both cases is 240ml.