| They are large reddish wood ants, Formica rufa, the Formica referring to the formic acid they squirt at intruders. |
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| A more recent application of formic acid is for pH regulation of flue gas desulfurization. |
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| All that formic acid coming from those thousands of stingers probably produces quite a sensation. |
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| The sodium formate is then carefully treated with sulfuric acid at low temperatures and distilled in a vacuum to yield formic acid. |
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| In addition, formic acid is an active ingredient in commercial cleaning products, such as descalers, rust removers, and degreasers. |
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| The flue gas is passed through an aqueous limestone slurry containing formic acid. |
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| These astonishing creatures squirt formic acid to defend themselves, farm aphids for honeydew, and make so much noise on a warm day that you can hear them marching. |
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| The viscose, cupro or modal fibre is dissolved from a known dry mass of the mixture, with a reagent consisting of formic acid and zinc chloride. |
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| Test work in late 1998 and early 1999 permitted a switch to a non-listed substance and eliminated the need to use formic acid. |
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| Carbon dioxide is formed when formic acid is dehydrogenated. |
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| The simplest fatty acids include formic acid and acetic acid. |
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| Some of these compounds are already known to be dangerous to human health when ingested, such as formaldehyde, octane, formic acid, butane, methyl propane, and benzene. |
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| Bactericidal and fungicidal activity of ant secretions and of pure formic acid were tested on filter-paper disks placed into each inoculated agar spread-plate. |
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| An example of a systemic toxicant is methanol, which is absorbed and biotransformed into formic acid. |
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| The common names of methanoic acid and ethanic acid are formic acid and acetic acid, respectively. |
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| As volatilisation of the formic is completed in less than a day, colonies are less disturbed than with the slow release methods. |
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| For its part streptococcus thermophilus promotes the growth of the lactobacilli by creating minute amounts of formic acid. |
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| But there is, in theory, a third route that uses formic acid and an unstable substance made from methanol and hydrogen. |
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| Usually it is synthesised either from methanol and formic acid, or methanol and carbon monoxide. |
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| The breakdown products of formaldehyde are formic acid and carbon monoxide. |
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| Whole milk in this extra barrel has been acidified and is sitting for a few hours contact time with formic acid. |
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| Apinovar users can simply pour the right dosage of formic on a piece of paper towel placed in the sampling tray of the bottom board. |
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| VanderDussen's formic acid-based invention is credited with disarming varroa mites, a major threat to Ontario's bee industry. |
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| Water vapour, acetic acid, formic acid and objects with internal salt or acetate compounds. |
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| Dr Nicholson, who studies the links between metabolic products and disease, has shown that the amount of formic acid in someone's urine is inversely related to his blood pressure a risk factor for cardiac problems. |
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| The connection appears to be an effect that formic acid has on the kidneys: it acts as a signalling molecule, changing the amount of salt they absorb back into the body from blood plasma that is destined to become urine. |
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| Earlier work, by researchers at Imperial College, London, suggests that formic acid a similar but smaller molecule acts on the kidneys to alter blood pressure, but the details are obscure. |
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| Additionally, increasing demand for acids such as formic, propionic, and butyric in the animal feed industry is estimated to drive the market. |
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| Enzyme, bacterial inoculant, and formic acid effects on silage composition of orchardgrass and alfalfa. |
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| The use of lactic, formic, propionic and acetic acid in the production of silage shall be only permitted when weather conditions do not allow for adequate fermentation. |
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| To make the treatment of the exhausted bath easier, the company also reduced the acids used in the process to one, eliminating the use of sulphuric acid altogether and only using formic acid. |
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| Wool points out that all epoxide preparations use dangerous intermediates such as formic acids. |
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| Analyses revealed a number of organic chemicals, including formic acid, acetic acid and capric acid, Hilts said. |
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| After the palladium salts are recovered by filtration, they are redissolved and reprecipitated to form a pure salt, and this is converted to metallic form, usually by chemical reduction with formic acid. |
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| Treatment of a hive with formic acid results in the diffusion of formic acid vapors through the hive, which can kill the honey bee mites without appreciably harming the bees. |
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| The formic acid is further oxidized to carbon dioxide and water by the action of formyltetrahydrofolate synthetase, which catalyses the production of formyltetrahydrofolate from formate and tetrahydrofolate. |
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| For example, the products of mixed-acid fermentation in E. coli include lactic acid, succinic acid, acetic acid, formic acid, ethyl alcohol, carbon dioxide, and hydrogen gas. |
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| Dr Nicholson suspects, though he cannot yet prove, that some crucial part of this web is regulated by the microbiome in a way similar to the role played by formic acid in the case of high blood pressure. |
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| It was also found that the subsequent transformation of formate to formic acid can only occur with the presence of dioxygen. |
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| Major types of acids employed here are formic acid and propionic acids. |
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| Samples were fixed in formalin and decalcified in formic acid. |
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| Formic acid is prepared commercially by heating carbon monoxide and sodium hydroxide to form sodium formate. |
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| Formic acid, for example, must be handled with care and can be hard on some equipment. |
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| Formic acid is also used in fumigants, refrigerants, solvents for perfumes and lacquers, brewing, and silvering glass. |
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| Formic acid decomposes slowly at room temperature into carbon monoxide and Water. |
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| Formic acid, sodium acetate and other reagents all with analytical grade were purchased from Beijing Chemical Reagent Company. |
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