Special K contains 2% or less of sugar, salt, malt flavouring, sucralose, natural and artificial flavour, and BHT for freshness. Vitamins and minerals include vitamin C (ascorbic acid), vitamin E (alpha tocopherol acetate), niacinamide, reduced iron, vitamin B (pyridoxine hydrochloride), vitamin B (thiamin hydrochloride), vitamin A (palmitate), vitamin B (riboflavin), folic acid, and vitamin B In the US, Special K provides meal replacements in two different forms, protein meal bars and protein shakes. There are eleven varieties of Special K Protein Meal Bars: Mocha Crunch Protein, Chocolate Peanut Butter, Strawberry, Double Chocolate, Chocolatey Chip, Honey Almond, Cranberry Walnut, Chocolate Caramel, Chocolatey Brownie,
Chemistry of ascorbic acid titration with an oxidizing agent, and several procedures have been developed. The popular iodometry approach uses iodine in the presence of a starch indicator. Iodine is reduced by ascorbic acid, and, when all the ascorbic acid has reacted, the iodine is then in excess, forming a blue-black complex with the starch indicator. This indicates the end-point of the titration. As an alternative, ascorbic acid can be treated with iodine in excess, followed by back titration with sodium thiosulfate using starch as an indicator. This iodometric method has been revised to exploit reaction of ascorbic acid with iodate and iodide in