Pure CDS = Chlorine Dioxide gas (ClO2) dissolved in distilled water (H2O) <br /> <br />Materials: <br /> <br />1 liter of distilled water. <br />75 ml of 22.4% sodium chlorite solution. <br />75 ml of 50% citric acid (or 10% hydrochloric acid). <br /> <br />How to make 22.4% sodium chlorite solution: <br /> <br />Dissolve 140 grams of sodium chlorite powder or flakes (containing 80% sodium chlorite) in 360 grams of distilled water. <br /> <br />Let the solution stand for 24 hours in a dark place and then filter it with a coffee filter. <br /> <br />How to make 50% citric acid: <br /> <br />Dissolve 300 grams of citric acid powder in 300 grams of distilled water. <br /> <br />How to make 10% hydrochloric acid: <br /> <br />Mix 100 ml of 35% hydrochloric acid with 250 ml of distilled water. <br />Mix 100 ml of 30% hydrochloric acid with 200 ml of distilled water. <br />Mix 100 ml of 20% hydrochloric acid with 100 ml of distilled water. <br /> <br />Precaution: <br /> <br />If distilled water is not available, use filtered water. <br /> <br />Do not make or store sodium chlorite solution, citric acid or hydrochloric acid using anything made of metal. <br /> <br />Storage: <br /> <br />Store the 3000 ppm CDS in a glass bottle. Put it in the refrigerator. <br /> <br />Usage: <br /> <br />To disinfect uncut fruits and vegetables, use 5 ml of 3000 ppm CDS for every 3 liters of water. <br /> <br />Reference: <br /> <br />https://msu.edu/~brook/publications/aeis/aeis654.htm
