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A saturated water solution, of about 40% formaldehyde by volume or 37% by mass, is called "100% formalin". A small amount of stabilizer, such as methanol, is usually added to suppress oxidation and polymerization. A typical commercial-grade formalin may contain 10–12% methanol in addition to various metallic impurities.
Laudanum is a tincture of opium containing approximately 10% powdered opium by weight (the equivalent of 1% morphine ). [ 1] Laudanum is prepared by dissolving extracts from the opium poppy ( Papaver somniferum) in alcohol ( ethanol ). Reddish-brown in color and extremely bitter, laudanum contains several opium alkaloids, including morphine and ...
Deliberate cyanide poisoning of humans has occurred many times throughout history. [44] Common salts such as sodium cyanide are involatile but water-soluble, so are poisonous by ingestion. Hydrogen cyanide is a gas, making it more indiscriminately dangerous, however it is lighter than air and rapidly disperses up into the atmosphere, which ...
MSG is found naturally in some foods including tomatoes and cheese in this glutamic acid form. [ 2][ 3][ 4] MSG is used in cooking as a flavor enhancer with a savory taste that intensifies the meaty, savory flavor of food, as naturally occurring glutamate does in foods such as stews and meat soups. [ 5][ 6]
Lye. A lye is an alkali metal hydroxide. Traditionally, it was obtained by using rainwater to leach wood ashes, which are strongly alkaline and highly soluble in water, of their potassium hydroxide (KOH), producing lye water, a caustic basic solution. Then the lye water would either be used as such, as for curing olives before brining them, or ...
Foodborne illness (also known as foodborne disease and food poisoning) [1] is any illness resulting from the contamination of food by pathogenic bacteria, viruses, or parasites, [2] as well as prions (the agents of mad cow disease), and toxins such as aflatoxins in peanuts, poisonous mushrooms, and various species of beans that have not been boiled for at least 10 minutes.
A food contaminant is a harmful chemical or microorganism present in food, which can cause illness to the consumer. The impact of chemical contaminants on consumer health and well-being is often apparent only after many years of processing and prolonged exposure at low levels (e.g., cancer ). Unlike food-borne pathogens, chemical contaminants ...
Paraquat is an oxidant that interferes with electron transfer, a process that is common to all life. Addition of one electron gives the radical cation: [paraquat]2++ e−↽−⇀{\displaystyle {\ce {<=>>}}}[paraquat]•+. The radical cation is also susceptible to further reduction to the neutral [paraquat]0:[26]
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