India: New Delhi to face resurgence of dangerous heat this week. April 09, 2017, 10:10:42 AM EDT. While the peak of the recent heat wave has passed, northwestern India will face a resurgence of dangerous heat this week. India Weather Map.
Iodine is a chemical element with symbol I and atomic number 53. The name is from Greek á¼°Î¿ÎµÎ¹Î´Î®Ï ioeidÄs, meaning violet or purple, due to the color of elemental iodine vapor. Iodine and its compounds are primarily used in nutrition, and industrially in the production of acetic acid and certain polymers. Iodine's relatively high atomic number, low toxicity, and ease of attachment to organic compounds have made it a part of many X-ray contrast materials in modern medicine.
1 To test for starch: A standard test for starch uses iodine. 2  Because iodine is not very soluble in water the first step is to form an iodine reagent by dissolving iodine in water in the presence of potassium iodide, resulting in a linear triiodide ion complex-which is soluble and yellow/orange in colour. Lugol's Solution: An example of an iodine-based product that has been widely used in medicine is Lugol's iodine (developed by French physician Jean Guillaume Auguste Lugol in 1829). 2  This consists of 5 g iodine (I 2), 10 g potassium iodide (KI) and enough distilled water to form a brown solution total volume of 100 mL.