Tonka (fuel) Tonka (fuel) Tonka (also TONKA-250 and R-Stoff) is the name given to a German-designed rocket propellant first used in the Wasserfall missile; it has also more recently been used by North Korea but found its greatest applications (under the name TG-02) in the Soviet Union, for example, in the propulsion projects of the A.M. Isayev Chemical Engineering Design Bureau. Its name is a reference to the tonka bean; as it was invented during the Second World War, it has no connection to the similarly named toys. Its composition is approximately 50% triethylamine and 50% xylidine, with the most common oxidizer
Spice natural preservatives, preventing or slowing the spoilage of food, leading to a higher nutritional content in stored food. India contributes 75% of global spice production. The International Organization for Standardization addresses spices and condiments, along with related food additives, as part of the International Classification for Standards 67.220 series. The Indian Institute of Spices Research in Kozhikode, Kerala, is devoted exclusively to conducting research for ten spice crops: black pepper, cardamom, cinnamon, clove, garcinia, ginger, nutmeg, paprika, turmeric, and vanilla. Books Articles Spice A spice is a seed, fruit, root, bark, or other plant substance primarily used for flavoring, coloring