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"ammonium carbonate" Definitions
  1. a carbonate of ammonium

54 Sentences With "ammonium carbonate"

How to use ammonium carbonate in a sentence? Find typical usage patterns (collocations)/phrases/context for "ammonium carbonate" and check conjugation/comparative form for "ammonium carbonate". Mastering all the usages of "ammonium carbonate" from sentence examples published by news publications.

It was printed on the package: ammonium carbonate, also known as smelling salts.
I request some ammonium carbonate, I request more fill dirt or more gypsum, but it just gets added to the list.
It can be prepared by adding ammonium carbonate to rubidium hydroxide.
If the concentration of ammonium carbonate is reduced, the color will be more chartreuse.
Suspected deposits may be dissolved by adding dilute ammonia or concentrated ammonium carbonate solution, removing the explosion hazard.
Compositions containing ammonium carbonate have long been known. They were once produced commercially, formerly known as sal volatile or salt of hartshorn. It was obtained by the dry distillation of nitrogenous organic matter such as hair, horn, leather. In addition to ammonium bicarbonate, this material contains ammonium carbamate (NH4CO2NH2), and ammonium carbonate ((NH4)2CO3).
Making an amide is one of the processes which require ammonia as a reactant. There are other processes of preparing an amide such as from acid anhydrides and acyl chloride. Carboxylic acids react with ammonium carbonate, to convert the carboxylic acids to ammonium salts. For example, acetic acid reacts with ammonium carbonate to produce ammonium acetate.
Aqueous amine solutions absorb CO2 via the reversible formation of ammonium carbamate, ammonium carbonate and ammonium bicarbonate.M. E. Boot- Handford et al., Energy Environ. Sci. 7, 130 (2014).
The binder for casein paint is made by dissolving casein in an alkali, usually lime, ammonium carbonate, or borax. Casein itself is precipitated from milk by the action of an acid or the enzyme rennet. Lime casein works well on porous surfaces, even outdoors, though it has a short shelf-life and must be used with pigments that are balanced against the binder's low pH. Ammonium carbonate casein has similar strengths and weaknesses.
Ammonium acetate is produced by the neutralization of acetic acid with ammonium carbonate or by saturating glacial acetic acid with ammonia. Obtaining crystalline ammonium acetate is difficult on account of its hygroscopic nature.
The 5,5-dimethyl compound can also be obtained from acetone cyanohydrin (also discovered by Urech: see cyanohydrin reaction) and ammonium carbonate. This reaction type is called the Bucherer–Bergs reaction.Bergs, Ger. pat. 566,094 (1929) [C.
An exotic method using electrochemistry and ion exchange in ammonium carbonate has been reported. Other methods for the extraction of uranium using ion exchange in alkaline carbonate and “fumed” lead oxide have also been reported.
Phthalimide can be prepared by heating phthalic anhydride with alcoholic ammonia giving 95–97% yield. Alternatively, it may be prepared by treating the anhydride with ammonium carbonate or urea. It can also be produced by ammoxidation of o-xylene.
Calcium cyanide hydrolyzes readily to form hydrogen cyanide gas. The presence of acid accelerated evolution of hydrogen cyanide gas. It is reactive toward oxidizing agents. Calcium cyanide is also sometimes used to produce ammonium cyanide by reacting it with ammonium carbonate.
The heat of reaction evaporates all water present in the system, forming a powdery salt. Approximately 6000M tons were produced in 1981. Ammonium sulfate also is manufactured from gypsum (CaSO4·2H2O). Finely divided gypsum is added to an ammonium carbonate solution.
The Bucherer–Bergs reaction is the chemical reaction of carbonyl compounds (aldehydes or ketones) or cyanohydrins with ammonium carbonate and potassium cyanide to give hydantoins.Bucherer, H. T.; Fischbeck, H. T. J. Prakt. Chem. 1934, 140, 69.Bucherer, H. T.; Steiner, W. J. Prakt. Chem.
A., 27, 1001 (1933)]. Hydantoin can also be synthesized either by heating allantoin with hydroiodic acid or by "heating bromacetyl urea with alcoholic ammonia". The cyclic structure of hydantoins was confirmed by Dorothy Hahn 1913. Of practical importance, hydantoins are obtained by condensation of a cyanohydrin with ammonium carbonate.
Hartshorn helps molded cookies such as Springerle to retain their intricate designs during baking. Cookies made with hartshorn can be kept for a long time without hardening. Use of hartshorn may turn some ingredients, such as sunflower seeds, green. Ammonium carbonate is especially suited to thin, dry cookies and crackers.
Beechwood by John Crosfield 1931, aged 15. Oil and palette knife on canvas Ammonium Carbonate Crystal X 10,000 by John Crosfield, 1980. Oil on canvas Crosfield's youthful oil paintings showed promise. His interest in art was awakened by Maurice "Grassy" Field, his art master at the Downs School, when he was 11.
The objects are painted or sprayed with a solution of 250 grams of ammonium carbonate / 250 grams of ammonium chloride / 1 liter of water. Each layer is dried for 24 hours. After reaching the desired tone, the material is waxed or varnished. If the amount of chloride is reduced, the color will be more turquoise.
Basic beryllium carbonate is a mixed salt, which can be prepared by the reaction of beryllium sulfate and ammonium carbonate, and contains both carbonate and hydroxide ions, with formula Be2CO3(OH)2.J.E. Macintyre, Dictionary of Inorganic Compounds 1992 CRC Press It is believed that in the older literature this is probably what was referred to as beryllium carbonate.
Baking ammonia (ammonium bicarbonate) was one of the original chemical leavening agents. It was obtained from deer antlers. It is useful as a leavening agent, because ammonium carbonate is heat activated. This characteristic allows bakers to avoid both yeast's long proofing time and the quick CO2 dissipation of baking soda in making breads and cookies rise.
Caruso, Aimee. “Pfeffernusse: Spicy Holiday Cookies.” Retrieved 21 July 2013 For the dough, most versions still use 19th century ingredients such as potassium carbonate and ammonium carbonate as leavening agents to get the sticky and dense consistency of the original mixture. It is then either kneaded by hand or through the use of an electric mixer.
Formation of ammonium Ammonium cation is found in a variety of salts such as ammonium carbonate, ammonium chloride and ammonium nitrate. Most simple ammonium salts are very soluble in water. An exception is ammonium hexachloroplatinate, the formation of which was once used as a test for ammonium. The ammonium salts of nitrate and especially perchlorate are highly explosive, in these cases ammonium is the reducing agent.
This addition changes the oxidation state of plutonium from +6 to +4, while uranium remains in the form of uranyl nitrate (UO2(NO3)2). The solution is treated with a reducing agent and neutralized with ammonium carbonate to pH = 8 that results in precipitation of Pu4+ compounds. In another method, Pu4+ and are first extracted with tributyl phosphate, then reacted with hydrazine washing out the recovered plutonium.
The filtered solution is treated with ammonium carbonate to precipitate . The carbonate is calcined in air to give a mixture of manganese(II) and manganese(IV) oxides. To complete the process, a suspension of this material in sulfuric acid is treated with sodium chlorate. Chloric acid, which forms in situ, converts any Mn(III) and Mn(II) oxides to the dioxide, releasing chlorine as a by-product.
Hartshorn jelly or a decoction of burnt hartshorn in water was used to treat diarrhea. The coal of hartshorn, called calcinated hartshorn, was used as an absorbent, as well as in the treatment of dysentery. Salt of hartshorn (ammonium carbonate) was used as a sudorific for treatment of fevers, and as a smelling salt. Hartshorn was used to treat insect bites, sunstroke, stye, and snakebites.
Cheshunt compound, a commercial mixture of copper sulfate and ammonium carbonate (discontinued), is used in horticulture to prevent damping off in seedlings.Coutts, J, Edwards, A, Osborn, A, & Preston, GH, The Complete Book of Gardening, p. 533, Ward Lock, London (1954) As a non- agricultural herbicide, is it used to control invasive aquatic plants and the roots of plants situated near water pipes. It is used in swimming pools as an algicide.
A related ring-opening reaction involves peroxides to give the useful peroxy acid: :C6H4(CO)2O + H2O2 → C6H4(CO3H)CO2H Phthalimide can be prepared by heating phthalic anhydride with aqueous ammonia giving 95–97% yield. Alternatively, it may be prepared by treating the anhydride with ammonium carbonate or urea. It can also be produced by ammoxidation of o-xylene. Potassium phthalimide is commercially available and is the potassium salt of phthalimide.
Barium chlorate can be produced through a double replacement reaction between solutions of barium chloride and sodium chlorate: :BaCl2 \+ 2 NaClO3 → Ba(ClO3)2 \+ 2 NaCl On concentrating and chilling the resulting mixture, barium chlorate precipitates. This is perhaps the most common preparation, exploiting the lower solubility of barium chlorate compared to sodium chlorate. The above method does result in some sodium contamination, which is undesirable for pyrotechnic purposes, where the strong yellow of sodium can easily overpower the green of barium. Sodium-free barium chlorate can be produced directly through electrolysis: :BaCl2 \+ 6 H2O → Ba(ClO3)2 \+ 6 H2 It can also be produced by the reaction of barium carbonate with boiling ammonium chlorate solution: :2 NH4ClO3 \+ BaCO3 \+ Q → Ba(ClO3)2 \+ 2 NH3 \+ H2O + CO2 The reaction initially produces barium chlorate and ammonium carbonate; boiling the solution decomposes the ammonium carbonate and drives off the resulting ammonia and carbon dioxide, leaving only barium chlorate in solution.
Buckley's Original Mixture is a cough syrup invented in 1919 in Toronto, Ontario, Canada , and still produced today. Noted for its strongly unpleasant taste (hence its slogan), its ingredients include ammonium carbonate, potassium bicarbonate, camphor, menthol, Canada balsam (Abies balsamea), sodium cyclamate, pine needle oil, and a tincture of capsicum. It is promoted for relief of coughs and sore throats for up to six hours. As of 2019, five other Buckley's cough syrups are produced.
Up to the 19th century, bread sold in Europe was often adulterated with hazardous materials, including chalk, sawdust, alum, plaster, clay and ammonium carbonate. This gradually came to an end with government action, such as the 1860 and 1899 Food Adulteration Acts in Britain. America had a more difficult time ending these processes of adulteration however, as various states had varying policies regarding bread making. MS., City Clerk's Office, Record Book, 1814-1820, pp.
Lead carbonate is manufactured by passing carbon dioxide into a cold dilute solution of lead(II) acetate, or by shaking a suspension of a lead salt more soluble than the carbonate with ammonium carbonate at a low temperature to avoid formation of basic lead carbonate. :Pb(CH3COO)2 \+ (NH4)2CO3 → PbCO3 \+ 2 NH4(CH3COO) Lead carbonate is used as a catalyst to polymerize formaldehyde to poly(oxymethylene). It improves the bonding of chloroprene to wire.
The coma cocktail is thought to have been created in United States as a first line treatment for an unconscious patient in an era where intensive care was new and difficult to maintain. Original coma cocktails included methylxanthines, physostigmine, physical stimulation (such as cold water baths or ammonium carbonate ("smelling salts")), amphetamines, strychnine, picrotoxin, nikethamide and camphor. As medicine and assessment techniques have advanced, the preceding drugs have been mostly replaced by the modern coma cocktail as described above.
Hartshorn salt (ammonium carbonate), also known simply as hartshorn, and baker's ammonia, was used as a leavening agent, in the baking of cookies and other edible treats. It was used mainly in the seventeenth and eighteenth centuries as a forerunner of baking powder. A half- teaspoon of hartshorn can substitute for one teaspoon of baking powder. It is called for in old German and Scandinavian recipes and, although rarely used in modern times, may still be purchased as a baking ingredient.
Gunpowder does not burn as a single reaction, so the byproducts are not easily predicted. One study citing showed that it produced (in order of descending quantities) 55.91% solid products: potassium carbonate, potassium sulfate, potassium sulfide, sulfur, potassium nitrate, potassium thiocyanate, carbon, ammonium carbonate and 42.98% gaseous products: carbon dioxide, nitrogen, carbon monoxide, hydrogen sulfide, hydrogen, methane, 1.11% water. However, simplified equations have been cited. A simple, commonly cited, chemical equation for the combustion of black powder is :2 KNO3 \+ S + 3 C → K2S + N2 \+ 3 CO2.
After conversion to the nitrates and extraction with ethanol, a sodium-free mixture was obtained. From this mixture, the lithium was precipitated by ammonium carbonate. Potassium, rubidium, and caesium form insoluble salts with chloroplatinic acid, but these salts show a slight difference in solubility in hot water, and the less-soluble caesium and rubidium hexachloroplatinate ((Cs,Rb)2PtCl6) were obtained by fractional crystallization. After reduction of the hexachloroplatinate with hydrogen, caesium and rubidium were separated by the difference in solubility of their carbonates in alcohol.
Tunnbröd (; literally "thinbread") is the Swedish version of flatbread and properly belongs to northern Swedish cuisine where housewives share a common bakery to produce it. Tunnbröd can be soft or crisp, and comes in many variants depending on choice of grain, leavening agent (or lack thereof) and rolling pin. The dough is made from any combination of wheat, barley and rye; the leavening agent can be both yeast and ammonium carbonate. Soft tunnbröd is commonly used like a crêpe or tortilla as a wrap for other food.
Ammonium uranyl carbonate (UO2CO3·2(NH4)2CO3) is known in the uranium processing industry as AUC and is also called uranyl ammonium carbonate. This compound is important as a component in the conversion process of uranium hexafluoride (UF6) to uranium dioxide (UO2). The ammonium uranyl carbonate is combined with steam and hydrogen at 500–600 °C to yield UO2. In another process aqueous uranyl nitrate, known as uranyl nitrate liquor (UNL) is treated with ammonium bicarbonate to form ammonium uranyl carbonate as a solid precipitate.
A copper pesticide is a copper compound used as a pesticide or fungicide. In the UK the Soil Association (one of the organic certification authorities) permits farmers to use some copper fungicides on organic land used for the production of certified organic crops only if there is a major threat to crops. Section 4.11.11, Soil Association Organic Standards for Producer, Version 16.1, April, 2010 The compounds permitted are copper sulfate, copper hydroxide, cuprous oxide, copper oxychloride, copper ammonium carbonate (at a maximum concentration of 25 g/l), and copper octanoate.
These can be simple ions such as the sodium (Na+) and chloride (Cl−) in sodium chloride, or polyatomic species such as the ammonium () and carbonate () ions in ammonium carbonate. Individual ions within an ionic compound usually have multiple nearest neighbours, so are not considered to be part of molecules, but instead part of a continuous three-dimensional network, usually in a crystalline structure. Ionic compounds containing basic ions hydroxide (OH−) or oxide (O2−) are classified as bases. Ionic compounds without these ions are also known as salts and can be formed by acid–base reactions.
The first fraction appears to originate from interstellar space and the compounds belonging to the other fractions derive from a planetoid. It has been proposed that the amino acids were synthesized close to the surface of a planetoid by the radiolysis (dissociation of molecules caused by radiation) of hydrocarbons and ammonium carbonate in the presence of liquid water. In addition, the hydrocarbons could have formed deep within a planetoid by a process similar to the Fischer-Tropsch process. These conditions could be analogous to the events that caused the origin of life on Earth.
In an attempt to form orally active penicillins unrelated to ampicillin, use was made of the fact that certain spiro α-amino acids, such as Cycloleucine, are well absorbed orally and transported like normal amino acids. Cyclacillin synthesis: Reaction of cyclohexanone with ammonium carbonate and KCN under the conditions of the Bucherer-Bergs reaction led to hydantoin 1. On acid hydrolysis, α-amino acid 2 resulted. Treatment with phosgene both protected the amino group and activated the carboxyl group toward amide formation (as 3) and reaction with 6-aminopenicillanic acid (6-APA) gave cyclacillin (4).
Apart from the story mentioned above connecting it with Oliver King, Bishop of Bath and Wells (1495–1503), this is a direct reference to the dream of the prophet Jacob mentioned in the Bible and commonly called Jacob's Ladder. Below the window a battlemented parapet supports a statue and beneath this, on either side of the door, are statues of St Peter and St Paul. Restoration work in the late 20th century involved cleaning with electronically controlled intermittent water sprays and ammonium carbonate poultices. One of the figures which had lost its head and shoulders was replaced.
KCN and sodium cyanide (NaCN) are widely used in organic synthesis for the preparation of nitriles and carboxylic acids, particularly in the von Richter reaction. It also finds use for the synthesis of hydantoins, which can be useful synthetic intermediates, when reacted with a carbonyl compound such as an aldehyde or ketone in the presence of ammonium carbonate. KCN is used as a photographic fixer in the wet plate collodion process.J. Towler, MD. "The Silver Sunbeam (Facsimile 1864 edition, 1969)" pg 119 The KCN dissolves silver where it has not been made insoluble by the developer.
Each year, the Washington state Department of Agriculture deploys apple maggot traps to a selection of sites in the state with between 5,500 to 8,500 traps deployed annually. The traps are yellow paneled, adhesive traps baited with ammonium carbonate lures. The area surrounding locations which successfully trap apple maggots may be further studied by analyzing fruit in the area for the presence of apple maggot larvae and, ultimately, placed in the quarantine zone. In 2011, for instance, the trapping of 35 apple maggots at 23 locations in Chelan County resulted in a recommendation to extend the quarantine zone to the western part of that county.
Spraying or drenching the soil with a recommended anti-fungal treatment (such as copper oxychloride) also helps suppress the disease. Homemade solutions (including ones made from chamomile tea or garlic) are used by some gardeners for this purpose. In the UK, a copper-based fungicide called Cheshunt compound was widely used by amateur and professional gardeners against damping off, but it was withdrawn from sale in the UK in November 2010 (last legal use 30 Nov 2011). Developed at an Agricultural Research Council Experimental Station in Cheshunt, Hertfordshire, UK, it was a mixture of copper sulfate and ammonium carbonate, which could be mixed by the gardener or bought ready- prepared.
Ammonium bicarbonate is produced by combining carbon dioxide and ammonia: :CO2 \+ NH3 \+ H2O → (NH4)HCO3 Since ammonium bicarbonate is thermally unstable, the reaction solution is kept cold, which allows the precipitation of the product as white solid. About 100,000 tons were produced in this way in 1997. Ammonia gas passed into a strong aqueous solution of the sesquicarbonate (a 2:1:1 mixture of (NH4)HCO3, (NH4)2CO3, and H2O) converts it into normal ammonium carbonate ((NH4)2CO3), which can be obtained in the crystalline condition from a solution prepared at about 30 °C. This compound on exposure to air gives off ammonia and reverts to ammonium bicarbonate.
As Nancy continues her investigation she discovers that several of the foils are missing their protective tips. While she is investigating, Damon gets involved in an accident when he smells ammonium carbonate (from an ampoule of smelling salts which were placed in DeLyn's fencing mask, which he accidentally wears). At the twins' home, Nancy realizes that over the past few years, DeLyn has won more awards than Damon, and that DeLyn has been throwing some bouts to not let her brother feel sad at being less talented. The next day when Nancy and George go to Salle Olympique to investigate, Una gets injured and Mobiers accuses the duo of being saboteurs from Salle Budapest.
This was based on an idea of his father's, and was intended to develop into an engine that ran on power generated from alternately heating and cooling carbon dioxide made from ammonium carbonate and sulphuric acid. Despite interest from several parties (the Admiralty included) the experiments were judged by Brunel to be a failure on the grounds of fuel economy alone, and were discontinued after 1834. In 1865, the East London Railway Company purchased the Thames Tunnel for £200,000, and four years later the first trains passed through it. Subsequently, the tunnel became part of the London Underground system, and remains in use today, originally as part of the East London Line now incorporated into the London Overground.
Initial restoration works were carried out in the 1890s. The pillars of Nagina Masjid and Lila Gumbaj Ki Masjid were subject to deterioration due to wind, humidity and moisture (bio- deterioration) and the stones were “pulverized”. Further pulverization was prevented by spraying on OH-100 (ethyl silicate) and also in a few cases deteriorated areas were filled with stone powder mixed with OH-100. Other treatment measures included removing insoluble salts using a 2% solution of sodiumhexa meta phosphate, ferrous salts with a 2% solution of EDTA and removing bat excreta with a 5% solution of liquid ammonia and non-ionic detergent followed by a second stage of treatment by applying a mixture of ammonium carbonate and ammonium bicarbonate, with EDTA as an additive.
He then went to the Queen's College, Galway, Ireland, to take the university degree in medicine, one of the few scientific degrees then available, and to use the opportunities there afforded for teaching and research in chemistry. He remained in Galway for twelve years, defending his PhD in 1860, until 1866, when he left Ireland for London. After 1860, and until his Japanese appointment in 1873, Divers held various teaching appointments as lecturer in medicine (Queen's College, Birmingham, which later became Birmingham University), medical jurisprudence (Middlesex Hospital Medical School, London), physics (Charing Cross Hospital Medical School) and chemistry (Albert Veterinary College). Divers joined the Chemical Society in 1860, and in 1862 started publishing his experimental work, on magnesium ammonium carbonate (1862), zinc ammonium chloride (1868), and three papers in 1870 on the carbonates and carbamate of ammonium.
In order for cocaine (in plastic bag at bottom) to be converted to crack, several supplies are needed. Pictured here are baking soda, a commonly used base in making crack, a metal spoon, a tealight, and a cigarette lighter. The spoon is held over the heat source in order to "cook" the cocaine into crack. A close up of the "cooking" process that creates crack. Sodium bicarbonate (NaHCO3, common baking soda) is a base used in preparation of crack, although other weak bases may substitute for it. The net reaction when using sodium bicarbonate is :Coc-H+Cl− \+ NaHCO3 → Coc + H2O + CO2 \+ NaCl With ammonium bicarbonate: :Coc-H+Cl− \+ NH4HCO3 → Coc + NH4Cl + CO2 \+ H2O With ammonium carbonate: :2(Coc-H+Cl−) + (NH4)2CO3 → 2 Coc + 2 NH4Cl + CO2 \+ H2O Crack cocaine is frequently purchased already in rock form, although it is not uncommon for some users to "wash up" or "cook" powder cocaine into crack themselves.
ASI had already spent Rs 2.25 crores (about US $ 0.45 million) on conservation in a four-year period and Rs 1.15 crores (US $ 0.23 million) was allotted for further restoration work at the sites. The pillars of Lila Masjid and Nagina Masjid were subject to deterioration due to wind, humidity and moisture (bio- deterioration) and the stones were “pulverized”; at Lila Masjid, the top parts of the architectural detailing of two pillars had been lost. Further pulverization was prevented by spraying on OH-100 (ethyl silicate) and also in a few cases deteriorated areas were filled with stone powder mixed with OH-100. Other treatment measures included removing insoluble salts using a 2% solution of sodiumhexa meta phosphate, ferrous salts with a 2% solution of EDTA and removing bat excreta with a 5% solution of liquid ammonia and non- ionic detergent followed by a second stage of treatment by applying a mixture of ammonium carbonate and ammonium bicarbonate, with EDTA as an additive.

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