Zinc is naturally present in water. The average zinc concentration in seawater is 0.6-5 ppb. Rivers generally contain between 5 and 10 ppb zinc. Algae contain 20-700 ppm, sea fish and shells contain 3-25 ppm, oysters contain 100-900 ppm and lobsters contain 7-50 ppm.
Cyanides (more exactly as cyanogenic glycozides) exist in cassavaroots, and fruit seeds as apricots, prunes, peaches, almonds etc. Cyanide is historically found in the seeds â¦of some fruits. Applesseeds contain cyanide, but a person would have to eat a lot ofapple seeds for the cyanide to have any negative effects. Cyanide is natural found in certain foods. This includes cassava,almonds, pits of some types of fruit, and Lima beans.
General Characteristic of Cyanide. In general, we can observe Hydrogen cyanide, sodium cyanide, and potassium cyanide easily in the environment where we have industrial activities. * Cyanide is a powerful and rapid-acting poison. * Hydrogen cyanide has been used in gas-chamber executions and as a war gas.Hydrogen cyanide is a colorless gas with a faint, bitter, almond-like odor. Is anybody know what the almond-like odor? Sodium cyanide and potassium cyanide are both white solids with a slight, bitter, almond-like odor in damp air.Cyanide salt and hydrogen cyanide are used in electroplating, metallurgy, production of organic chemicals, photographic developing, in making plastics, fumigating ships, and some mining process.n general, we can observe Hydrogen cyanide, sodium cyanide, and potassium cyanide easily in the environment where we have industrial activities. * Cyanide is a powerful and rapid-acting poison. * Hydrogen cyanide has been used in gas-chamber executions and as a war gas.