| 单词 | formic |
| 例句 | A Chinese research team have now developed a fast-charging hybrid battery system that combines the electrochemical generation of formic acid as an energy carrier with a microbial fuel cell. Efficient biohybrid batteries 2023-10-31T04:00:00Z Many candidates have been considered as possible hydrogen energy carries such as ammonia, formic acid, and metal hydrides. A potentially cheaper and 'cooler' way for hydrogen transport 2023-10-26T04:00:00Z For realizing carbon neutrality, the demand for the development of direct methanol/formic acid-fuel cell technology has been increasing. Efficient fuel-molecule sieving using graphene 2023-09-22T04:00:00Z Most reacts with OH in the lower atmosphere to make formic acid, which then decomposes into carbon dioxide and water. Biology for AP Courses 2022-06-09T00:00:00Z But when metabolized by the human body, methanol makes formic acid and formaldehyde, both of which attack the nervous system. Keep your hands clean, but avoid these dangerous hand sanitizers, FDA warns 2020-08-04T04:00:00Z Using commercially available components, they designed an electrolysis cell in which inorganic catalysts convert carbon dioxide gas into formic acid. Efficient biohybrid batteries 2023-10-31T04:00:00Z Their venom likely contains formic acid, which is known from previous experiments to work like AITC. These Mole Rats Felt No Pain, Even From Wasabi’s Burn 2019-05-30T04:00:00Z In this technology, methanol or formic acid is used as an e-fuel for generating electricity. Efficient fuel-molecule sieving using graphene 2023-09-22T04:00:00Z First, the Formica ants squirt the trap-jaw ants with a stream of formic acid that stuns them. High-speed video solves how Florida ants furnish their nests with their enemies’ bodies 2018-11-18T05:00:00Z These are some of the cities with the world’s worst air quality, according to a new analysis of four major gases associated with air pollution: ammonia, formic acid, methanol, and ozone. Top stories: The world’s most polluted cities, a science fraud battle, and a new dino family tree 2017-03-24T04:00:00Z Once formic acid has been produced and extracted from the electrolyte, it is fed into a second device -- the microbial fuel cell -- where bacteria slowly convert it into carbon dioxide and electricity at the bioanode. Efficient biohybrid batteries 2023-10-31T04:00:00Z Beekeepers treat hives with formic acid, oxalic acid and other miticides. Queen bees, North Dakota honey production industry in peril 2016-08-28T04:00:00Z A research team has successfully developed a new method that can prevent the crossover of large fuel molecules and suppress the degradation of electrodes in advanced fuel cell technology using methanol or formic acid. Efficient fuel-molecule sieving using graphene 2023-09-22T04:00:00Z When the Formica ants attack, the high-speed video would show these really quick bursts of formic acid being sprayed from their abdomens and splattering on the trap-jaw ants. High-speed video solves how Florida ants furnish their nests with their enemies’ bodies 2018-11-18T05:00:00Z Further lab results presented today in Science show that the reactive amine on the aminopyrimidine readily bonds with either formic acid or formamide. ‘RNA world’ inches closer to explaining origins of life 2016-05-12T04:00:00Z One of those compounds, called methanol, metabolizes into formaldehyde and formic acid, neither of which are going to make someone feel good. Can we cure the common hangover? This Vegas clinic thinks yes 2015-03-25T04:00:00Z He and his mother, both dripping sarcasm like formic acid, are two exceptional, odious creatures whom genetics and geopolitics have consigned to a death match. The Good, the Bad and the Mommy: Five Great Movie Mothers, and the Five Worst 2014-05-11T13:00:31Z Crouching downwind, I inhaled deeply to catch its scent and wondered if consuming 30,000 ants a day gives this creature, or its flatulence, the odor of formic acid. Can Endangered Animals Coexist with Big Ag? [Excerpt] 2013-02-22T19:15:00.507Z The ants they were using – Atta cephalotes – don’t produce formic acid, so were presumably just running about among the birds’ feathers, removing parasites and such. The other turkey 2013-01-16T15:15:00.303Z It must contain 50 litres, and is labelled formic acid – which can cause oedema and subsequent failure of the lungs. Bangladesh's toxic tanneries turning a profit at an intolerable human price 2012-12-13T07:00:01Z They are sweet from the honeydew but have a bit of flavor from the ants’ formic acid. The Surprising Culinary Delight of Honeydew, aka Plant Bug Poo 2012-04-02T21:46:26.747Z The monkeys plop down on top and roll every which way, to soak up the ants’ formidable formic acid supply. Basics: These Mammals Pack a Toxic Punch 2012-01-30T19:13:25Z The formic acid that the ants secrete had partly paralyzed it and made defence impossible. Bert Wilson at the Wheel 2012-01-14T03:00:19.827Z Formalin, for′ma-lin, n. a formic aldehyde used as an antiseptic, germicide, or preservative in foods. Chambers's Twentieth Century Dictionary (part 2 of 4: E-M) 2012-01-11T03:00:23.770Z Little by little it becomes stupefied from the discharges of formic acid the ants throw out from their bodies, and presently it succumbs to their renewed forces. The Animal Story Book 2011-12-06T03:00:25.427Z When a sample arrived in Germany, Beyreuther and his colleagues broke it down with formic acid and sifted through the debris to find the smallest stable protein. Amyloid: Little proteins, big clues 2011-07-13T17:20:56.787Z This step produces equal amounts of formic acid and levulinic acid. Fuel options: The ideal biofuel 2011-06-22T21:50:40.910Z Then they have the formic acid that, used against ants or other insects, has a poisonous quality. Bert Wilson at the Wheel 2012-01-14T03:00:19.827Z The silver and mercury salts, when heated, yield the metal, with liberation of carbon dioxide and formation of free formic acid; and the ammonium salt, when distilled, gives some formamide, HCONH2. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 6 "Foraminifera" to "Fox, Edward" 2011-04-22T02:00:08.637Z Fatty Acids, the homologues of formic and acetic acid; so called because the members first studied were obtained from fats and oils, e.g. butyric acid from butter, stearic acid from stearin, palmitic acid from palm-oil. The New Gresham Encyclopedia Volume 4, Part 3: Estremoz to Felspar 2011-04-14T02:00:59.373Z In short, it has nothing to commend it, in comparison with acetic or formic acids. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z They moved sturdily, heavily laden, along the route marked with the black and odorous formic acid exuded from the bodies of their comrades. The Mad Planet 2011-03-02T03:00:25.117Z The first synthetic reaction is the formation of a molecule of formic aldehyde, CH2O, by the combination of a molecule of water with an atom of carbon. The Mechanism of Life Finally, formic acid is, as shown by the determination of its affinity constant, a much stronger acid than the other acids of the series. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 6 "Foraminifera" to "Fox, Edward" 2011-04-22T02:00:08.637Z If the urine is acid, bicarbonate of soda may be given, or citrate of soda; if alkaline, urotropine—a derivative of formic aldehyde—may prove a useful urinary disinfectant. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" If prevailing costs put it on terms of parity with acetic acid, there would appear to be no reason why formic acid should not have a widely-extended use on plantations. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z The moths took to the air in helpless blindness when discovered by the relentless throngs of small black insects which reeked of formic acid and left the ground behind them denuded in every living thing. The Mad Planet 2011-03-02T03:00:25.117Z From this formic aldehyde, or formol, we may obtain all the various carbohydrates by simple polymerization, i.e. by the association of several molecules, with or without elimination of water. The Mechanism of Life Hydrolysis of hydrocyanic acid by means of hydrochloric acid yields formic acid. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 6 "Foraminifera" to "Fox, Edward" 2011-04-22T02:00:08.637Z The men cut portions of the flesh to eat, but when afterwards prepared, I found it too strongly flavored with formic acid to be agreeable, and the dogs refused it. With the World's Great Travellers, Volume 2 There is a deal to be said in favour of the use of another organic acid, formic acid. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z The types of fermentation taking place in the stomach are alcoholic, lactic, butyric, acetic, formic, oxalic, and cellulose. Dietetics for Nurses Oxidation in acid solutions gives compounds classed as “oxycelluloses,” insoluble in water, but more or less soluble in alkalis; continued oxidation gives formic, acetic and carbonic acids. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5 "Cat" to "Celt" Sodium amalgam converts it into formic acid; whilst with alcohol it yields the normal carbonic ester. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" Among the first class, aerial or gaseous disinfectants, formic aldehyde has of late years taken foremost place. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 5 "Dinard" to "Dodsworth" Instead of producing from the sugar of milk large quantities of lactic acid, these types generate other acids, such as acetic and formic, which impart a sharp taste to the milk. Outlines of dairy bacteriology A concise manual for the use of students in dairying The substances formed as a result of this activity are certain acids—lactic, butyric, formic, acetic, oxalic, and possibly alcohol. Dietetics for Nurses The following table gives Ostwald’s results for the formic acid series:— Table XII. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 8 "Conduction, Electric" There is a small quantity of acetic, formic, and succinic acids formed. The Bacillus of Long Life a manual of the preparation and souring of milk for dietary purposes, together with and historical account of the use of fermente Disinfection by sulphurous acid fumes is of great antiquity, and is still in very general use; for the purpose of destroying vermin it is more powerful than formic aldehyde. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 5 "Dinard" to "Dodsworth" Strong oxidation breaks the benzene complex into such compounds as carbon dioxide, oxalic acid, formic acid, &c.; such decompositions are of little interest. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" The formic acid is drawn from a large species of red ants, formica rufa, Lin. which form large ant hills in woody places. Elements of Chemistry, In a New Systematic Order, Containing all the Modern Discoveries Some of the more volatile fatty acids are driven off, and the fats break down to give a larger percentage of free fatty acids, some light esters, acrolein, and formic acid. All About Coffee The reason that the muurahais kylpy bath is efficacious for rheumatism and of strengthening property is due to the amount of formic acid the ants contain. Through Finland in Carts The distillate "B" may contain formic, acetic, propionic, butyric and benzoic acids. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. It has been suggested that urea is formed by polymerization of ammonium carbonate, and formic aldehyde is synthesized from CO2 and OH2. Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy" Again, in the developing solution the quantity of formic acid is double in your paper what it is in the journal. Notes and Queries, Number 207, October 15, 1853 A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Genealogists, etc. The same applies if you have preserved them with anything that gradually produces acid; For example, formaldehyde gradually reacts with oxygen to produce formic acid. Practical Taxidermy A manual of instruction to the amateur in collecting, preserving, and setting up natural history specimens of all kinds. To which is added a chapter upon the pictorial arrangement of museums. With additional instructions in modelling and artistic taxidermy. As we introduce waves of shorter period the sulphuric aether augments most rapidly in opacity; that is to say, its accord with the shorter waves is greater than that of the formic. Fragments of science, V. 1-2 When an increase in the efficacy of the baths is desired, a quantity of extract obtained by the distillation of the etherised oil above mentioned, which also contains formic acid, is poured into the liquor. Chambers's Edinburgh Journal, No. 458 Volume 18, New Series, October 9, 1852 Of his senses, sound was the one that dominated him; an intolerable, continuous explosion from the motors racked his mind like tidal waves of formic acid. Tight Squeeze The developing agent with the pyrogallic and formic acids will keep good a very long time, longer, I think, than that in which acetic acid is used, but cannot be used as a dipping bath. Notes and Queries, Number 207, October 15, 1853 A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Genealogists, etc. Do not stand over the solution while mixing as the fumes of the formic acid affect the eyes. Home Taxidermy for Pleasure and Profit A Guide for Those Who Wish to Prepare and Mount Animals, Birds, Fish, Reptiles, etc., for Home, Den, or Office Decoration Hence we may infer that the atoms of formic aether oscillate, on the whole, more slowly than those of sulphuric aether. Fragments of science, V. 1-2 This liquor is of a greenish-brown tint; and, according to the process, is either gelatinous and balsamic, or acid; formic acid having been produced in the latter case. Chambers's Edinburgh Journal, No. 458 Volume 18, New Series, October 9, 1852 Moreover, whereas in the previous cases it was mainly acetic acid, it is now mainly formic acid. Researches on Cellulose 1895-1900 I find the formic acid which I obtain from different chemists rather variable in its strength. Notes and Queries, Number 207, October 15, 1853 A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Genealogists, etc. It is true he tastes slightly of formic acid, but that is just the flavour that epicures admire. The Bush Boys History and Adventures of a Cape Farmer and his Family When the source of heat is a Leslie's cube coated with lampblack and filled with boiling water, the opacity of formic aether in comparison with sulphuric is very decided. Fragments of science, V. 1-2 And there were the poisons distilled or extracted from various sources, among which were strychnine, formic acid, hyoscyamine, and belladonna. The Status Civilization The name "formic" is derived from the Latin formica, signifying ant. An Elementary Study of Chemistry Accordingly the honey which is destined to be kept is preserved from fermentation by the addition of a drop of formic acid deposited by the sting. Chatterbox, 1905. The root also contains malic, acetic, and formic acids, with a resin, tannin, starch, and mucilage. Herbal Simples Approved for Modern Uses of Cure In some cases it becomes changed in the body into formic acid, which should therefore be sought for. Aids to Forensic Medicine and Toxicology She puts the nectar through a process of her own, adds a drop of her own secretion to it, namely, formic acid, the water evaporates, and lo! the tang and pungency of honey! The Last Harvest The inflammation caused by the sting of the bee is due to formic acid. An Elementary Study of Chemistry The robber-fly did not get up, and she was not quite unperturbed, but died as they die who are poisoned with formic acid, and very soon was still. The Way of the Wild Bites, Hartshorn Old Time Remedy for.—"Apply hartshorn or spirits of ammonia to part which neutralizes the formic acid, the active principle of the poison." Mother's Remedies Over One Thousand Tried and Tested Remedies from Mothers of the United States and Canada For example, urea, formic acid, indigo, and many other bodies, hitherto produced only by animals and plants, were easily produced by the chemist by purely chemical methods. The Story of the Living Machine A Review of the Conclusions of Modern Biology in Regard to the Mechanism Which Controls the Phenomena of Living Activity Any excess of acid in the one which has received the fulminate will therefore be due to the formic acid generated from the fulminate. Nitro-Explosives: A Practical Treatise They are all monobasic, and this fact is expressed in the formulas by separating the replaceable hydrogen atom from the rest of the molecule: H·CHO2 formic acid, a liquid boiling at 100°. An Elementary Study of Chemistry The presence of formic and acetic acid supplies the blood with fresh electricity to stimulate the nerves. Valere Aude Dare to Be Healthy, Or, The Light of Physical Regeneration From this it appears that the preservative effect of the formic acid is destroyed by great moisture, and hence this drying process. Scientific American Supplement, No. 514, November 7, 1885 These products are carbon dioxide, formic acid, ammonia, methyl-amine, and sarcosine, the last three being of course in combination with the excess of hydrochloric acid. Scientific American Supplement, No. 415, December 15, 1883 If you are afraid, your system throws off formic acid, and the animals need only the suspicion of a scent of it to make them ready to fight. Her Father's Daughter C. it is decomposed; the products of the reaction being glycocoll, ammonia, formic acid and carbon dioxide. The Project Gutenberg Encyclopedia Volume 1 of 28 The creature stings the leaf, dropping into the wound a portion of formic acid, and then lays its egg. The Naturalist on the Thames So that among the bees the honey which is stored for winter use, and among the ants the stores of grain which serve for food, are preserved by one and the same fluid, formic acid. Scientific American Supplement, No. 514, November 7, 1885 These contain water, carbonic acid, urea, buturic acid, formic acid, acetic acid, salts, the chief being sodium chloride, and many other substances. Maintaining Health Formerly Health and Efficiency Swarming on the extremity of the branches among which the formicary is constructed, the defenders, projecting their terminal segments as far into space as possible, eject formic acid in the direction of the enemy. Tropic Days Secondary alcohols result from the reduction of ketones; and from the reaction of zinc alkyls on aldehydes or formic acid esters. The Project Gutenberg Encyclopedia Volume 1 of 28 Has formic acid ever been used for experiments on bacilli? Field and Hedgerow Being the Last Essays of Richard Jefferies It manifests this peculiarity because of the volatile formic acid which it contains. Scientific American Supplement, No. 514, November 7, 1885 This acid is far more powerful than formic, and is highly poisonous. Insectivorous Plants It is little feared in the Gaboon; when its armies attack the mission-houses, they are easily stopped by lighting spirits of turpentine, or by a strew of quicklime, which combines with the formic acid. Two Trips to Gorilla Land and the Cataracts of the Congo Volume 1 I have just procured formic acid to try whether its vapour or minute drops will delay germination of fresh seeds; trying others at same time for comparison. More Letters of Charles Darwin — Volume 2 "It's only sawdust mixed with a little gum and formic acid." Stories in Light and Shadow Honey which is purified by treatment with water under heat, or the so-called honey-sirup, spoils sooner, because the formic acid is volatilized. Scientific American Supplement, No. 514, November 7, 1885 It is strange that allied acids act very differently: formic acid induces very slight inflection, and is not poisonous; whereas acetic acid of the same strength acts most powerfully and is poisonous. Insectivorous Plants The writer found that we can produce this membrane in the unfertilised egg by certain acids, especially the monobasic acids of the fatty series, e.g. formic, acetic, propionic, butyric, etc. Darwin and Modern Science This effect is produced by the formic acid, which is present in excess in the honey. Scientific American Supplement, No. 514, November 7, 1885 The more excitable and the more ready to sting the bees are, the greater will be the quantity of formic acid which is added to the honey, and the admixture of which good honey needs. Scientific American Supplement, No. 514, November 7, 1885 But now it is demonstrated that here also it is only the formic acid, whose preservative influence goes so far that it can make seed incapable of germination for a determinate time or continuously. Scientific American Supplement, No. 514, November 7, 1885 Hitherto it has been entirely unknown in what way the substratum of this peculiarity of honey, the formic acid in the honey, could enter into this vomit from the honey stomach of the workers. Scientific American Supplement, No. 514, November 7, 1885 |
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